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| <languages/>
| | #REDIRECT [[WB-MAI11 Modbus Analog Inputs]] |
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| '''[https://wirenboard.com/en/product/WB-mai/ Pre-order in the online store ]'''
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| [[Файл:WB-mai.png |200px|thumb|right| WB-MAI, side view]] | |
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| == Purpose==
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| The analog input module is designed for:
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| * voltage measurement;
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| * current measurement;
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| * resistance measurements on two-wire and three-wire circuits;
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| * temperature measurements using thermocouples or resistance thermometers;
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| * signal measurements from ratiometric sensors or variable resistors;
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| * connection of dry contact and open collector type signals.
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| The input mode is selected when configuring the instrument. No additional external load/pull-up resistors are required. The device allows you to connect up to 22 different sensors at the same time.
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| Design: housing on DIN-rail (width 6 units). Supply voltage 12 – 24V.
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| The module is controlled from the controller or PC via RS-485 bus by Modbus commands.
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| == Specifications ==
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| {| class="wikitable"
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| |+Table 1. Technical parameters.
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| !Parameter
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| !Value
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| |-
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| ! colspan="2" |Power
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| |-
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| |Supply voltage
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| |12 V – 24 V
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| |-
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| ! colspan="2" |measurement Channels
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| |-
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| |Number of channels
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| |11 differential or 22 normal
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| |-
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| |Voltage measurement
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| | -5 – 5 V differential mode
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| 0 – 5 V normal operation
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| |-
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| |Current measurement
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| |0 – 20 mA
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| |-
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| |Resistance measurement
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| |0 – 5000 Ohms
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| |-
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| |Types of thermocouples supported
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| |K
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| |-
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| |Types of resistance thermometers supported
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| |Rt50, Pt100, Pt500, Pt1000, 50P, 100P, 500P, 1000P, 50M, 100M, 500M, 1000M, Ni100, Ni500, NI1000
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| |-
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| |Voltage measurement error
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| |±0.2%
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| |-
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| |Current measurement error
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| |±0.2%
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| |-
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| |Error in the measurement of resistance
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| |±0.1% for INxP inputs
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| ±1% for INxN inputs
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| ±(0.1% + 0.003·Rw) for three-wire circuit
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| |-
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| ! colspan="2" |Control
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| |-
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| |Management interface
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| |RS-485
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| |-
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| |Interface isolation
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| |Galvanically isolated from measuring circuits
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| |-
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| |Communication protocol
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| |Modbus RTU, address is set by software, factory settings are indicated on the label
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| |-
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| |RS-485 interface parameters
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| |Default speed of 9600 bps; data bits 8; parity N; stop bits 2.
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| Interface parameters can be configured programmatically:
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| * Speed: 1200, 2400, 4800, 9600 (default), 19200, 38400, 57600, 115200 bit/s <br>([[UART_Communication_Settings/en|configure RS-485 communication parameters for Wiren Board Modbus devices]])
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| * Data: 8 bit
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| * Parity check: none (default), 1 - odd (odd), 2 - even (even)
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| * Stop bits: 1, 2 (default)
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| |-
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| |Ready for operation after power supply
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| |1 c
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| |-
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| ! colspan="2" |dimensions
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| |-
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| |Size
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| |106.25 x 90.2 x 57.5 mm
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| |-
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| ! colspan="2" |operating Conditions
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| |-
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| |Air temperature
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| |-40°C to +80°C
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| |-
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| |Relative humidity
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| |up to 98%, without condensation
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| |}
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| == Connection diagrams ==
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| The module is made in a plastic case and is designed for installation in a mounting box on a DIN rail.[[File:MAI Diff Voltage.png|mini|Fig. 1. Voltage measurement in differential mode.|без]] Fig. 1 shows the connection diagram of the sensor with the output type "voltage" in differential mode. This scheme is suitable for sensors whose output voltage can take negative values. Allows you to measure voltages from -5 to 5 V.
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| [[File:MAI Voltage.png|without|mini|Fig. 2. Voltage measurement]]
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| Fig. 2 shows the voltage measurement circuit relative to the common wire. This scheme allows you to measure only positive voltages from 0 to 5 V. It is possible to connect two sensors to one input.
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| [[File:MAI Current.png|without|mini|Fig.3. Current measurement.]]
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| Fig.3 shows the connection diagram of sensors with a current output of 0-20 mA (4-20 mA). Load resistors with a nominal value of 100 Ω built in the device and connect via the software, the configuration process of the device. It is possible to connect two sensors to one input.
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| [[File:MAI Thermocouple.png|without|mini|Fig. 4. The connection of the thermocouple.]]
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| Fig. 4 shows the K-type thermocouple connection diagram. For correct detection of the absence of thermocouple input filter capacitors are discharged short-term (several µs) pulses with built-in resistors 100 Ohms. It is necessary to keep this in mind, if you connect another source of EMF instead of a thermocouple. The capacitors are only discharged in the "Standard sensors" mode when one of the supported thermocouples is selected. In basic modes, no discharge is performed.
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| [[File:MAI Dry.png|without|mini|Fig. 5. Connection of dry contact sensors and resistance measurement on a two-wire scheme.]]
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| For rice. 5 shows the connection diagram of the sensors of the dry contact or resistance measurement on a two-wire circuit (shown by the dotted line). When using a two-wire circuit, the resistance of the wires is included in the measurement result. Due to the internal features of the INxP input device, the accuracy of the resistance measurement is greater than that of the INxN inputs. This should be taken into account when connecting the sensors. It is possible to connect two sensors to one input.
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| [[File:MAI Ratio.png|without|mini|Fig. 6. Connection of ratiometric sensors.]]
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| Fig. 6 is the scheme of connection of ratiometric sensors or variable resistors. In this mode, the signal from the sensor is measured as a percentage - from 0% (GND level) to 100% (+5V level). It is possible to connect two sensors to one input.
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| [[File:MAI 3 wire.png|without|mini|Fig. 7. Resistance measurement by three-wire circuit.]]
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| Fig. 7 shows a diagram of the resistance measurement of the three-wire circuit. In this mode, the resistance of the wires has almost no effect on the measurement result, provided that all the wires to the sensor are the same. The absolute effect of wire resistance on the final result is 0.003 Rw as opposed to 2Rw (Rw is the resistance of one wire to the sensor) in a two-wire circuit.
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| [[File:MAI Res over current.png|without|mini|Fig. 8. Resistance measurement using the current measurement.]]
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| Fig. 8 shows a diagram of the resistance measurement using the current measurement. This circuit is used to connect an NTC thermistor. In this mode, the device can measure resistance in a wide range - from 150 Ohms to 1 MW. But keep in mind that the lower the resistance of the NTC, the greater the current in the circuit and self-heating NTC (as opposed to the circuits in Fig. 5 and Fig.7, where the current in the circuit is constant regardless of resistance). Therefore, the device artificially reduces the input polling rate depending on the current NTC resistance to compensate for self-heating. It is possible to connect two NTC to one input, but in this case, the polling rate is reduced, because during the survey of one, the current goes through both NTC, which leads to an increase in idle time to compensate for self-heating. To improve the accuracy of high resistance measurements, it is recommended to select the lowest possible data rate - 20 SPS.
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| === Possible combinations of sensors to a single login ===
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| Two sensors can be connected to the same input with the following restrictions:
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| * If the channel INxP / off, channel, INxN should also be turned off
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| * If the channel INxP has a differential type configuration for channel INxN ignored
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| * Channel INxN may not have a differential type
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| * If the INxP channel is set to current measurement mode, the INxN channel must also be set to current measurement or disabled
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| * If the INxP channel is set to resistance or voltage measurement mode, the INxN channel must also be set to resistance or voltage measurement
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| * If the channel is configured to INxP mode of resistance measurement using the current measurement, and the channel INxN also have this mode or turned off
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| Channel settings INxP override the channel settings INxN. If the above conditions are not met, the INxN channel settings are ignored and the channel is disabled. Table 2 shows the possible sensor combinations for a single input.
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| {| class="wikitable"
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| |+Table 2. Possible combinations of sensors to one input.
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| ! rowspan="2" |inxp channel connection Diagram
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| ! colspan="8" |Possible inxn circuit
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| |-
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| |Figure 1
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| |Figure 2
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| |Figure 3
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| |Figure 4
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| |Figure 5
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| |Figure 6
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| |Figure 7
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| |Figure 8
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| |-
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| |Figure 1
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| The measurement of the voltage in differential mode
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| |-
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| |Figure 2
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| Voltage measurement
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| !V
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| !V
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| !V
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| |-
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| |Figure 3
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| Current measurement
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| !V
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| |-
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| |Figure 4
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| The connection of the thermocouple
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| |-
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| |Figure 5
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| Connection of "dry contact" sensors and resistance measurement according to two-wire scheme
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| !V
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| !V
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| !V
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| |-
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| |Figure 6
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| Connection of ratiometric sensors
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| !V
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| !V
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| !V
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| |-
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| |Figure 7
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| Resistance measurement by three-wire circuit
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| |-
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| |Figure 8
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| Resistance measurement using the current measurement
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| !V
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| |}
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| == Description of Modbus registers ==
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| All modbus registers of the device are divided into 3 groups:
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| * Device settings
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| * The setting of the measurement channels
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| * Measured value
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| The register map is shown in table 3. ''''X' in the register address is the entry number from 1 to 11 (0x1 to 0xB).'''
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| {| class="wikitable"
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| |+Table 3. Description of Modbus control registers.
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| !Hex address
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| !Dec address
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| !Type
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| !Read-write
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| !Default
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| !Format
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| !Purpose
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| |-
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| ! colspan="7" |Device parameters
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| |-
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| |0x006E
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| |110
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| |holding
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| |RW
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| |96
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| |baud rate / 100
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| | RS-485 port speed, '''divided by 100'''. Allowable speed: 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200
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| |-
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| |0x006F
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| |111
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| |holding
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| |RW
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| |0
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| |0, 1, 2
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| |Configure the RS-485 port parity bit. Valid values: 0 - no parity bit (none), 1 - odd (odd), 2 - even (even)
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| |-
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| |0x0070
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| |112
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| |holding
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| |RW
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| |2
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| |1, 2
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| |Number of stop bits of RS-485 port. Valid values: 1, 2
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| |-
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| |0x0078
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| |120
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| |holding
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| |RW
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| |0
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| |otрук than 0
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| |Restart. Writing to the register causes the module restart without saving state
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| |-
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| |0x0080
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| |128
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| |holding
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| |RW
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| |1
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| |Device Modbus-address
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| |-
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| |0x00C8 - 0x00CE
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| |200 - 206
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| |input
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| |R
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| |{'M','A','I',0,0,0}
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| |Signature
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| |-
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| |0x00DC - 0x00F1
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| |220 - 241
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| |input
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| |R
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| |__date__ __time__
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| |Firmware build date
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| |-
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| |0x00FA - 0x010D
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| |250 - 269
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| |input
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| |R
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| |string, null-terminated
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| |Firmware version
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| |-
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| |0x010A - 0x010F
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| |266 - 271
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| |input
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| |R
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| |Unique identifier(S/N)
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| |-
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| ! colspan="7" |The setting of the measurement channels
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| |-
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| |0x'''X'''400
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| |4096·'''X''' + 1024
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| |holding
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| |RW
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| |0
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| |Тable 4, table 5
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| |Type of sensor connected to INxP channel or to INx in differential mode (see tables 4 and 5)
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| |-
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| |0x'''X'''401
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| |4096·'''X''' + 1025
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| |holding
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| |RW
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| |0
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| |Table 4, table 5
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| |Type of sensor connected to the INxN channel (see tables 4 and 5)
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| |-
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| |0x'''X'''402
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| |4096·'''X''' + 1026
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| |holding
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| |RW
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| |0
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| |0, 20, 45, 90, 175, 330, 600, 1000
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| |Data rate for INxP or INx channels in differential mode, SPS. 0 - channel is off
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| |-
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| |0x'''X'''403
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| |4096·'''X''' + 1027
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| |holding
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| |RW
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| |0
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| |0, 20, 45, 90, 175, 330, 600, 1000
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| |Data rate for INxN channels, SPS. 0 - channel off
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| |-
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| |0x'''X'''404
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| |4096·'''X''' + 1028
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| |holding
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| |RW
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| |0
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| |0 - 50
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| |Number of continuous measurements for INxP or INx channels in differential mode
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| |-
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| |0x'''X'''405
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| |4096·'''X''' + 1029
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| |holding
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| |RW
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| |0
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| |0 - 50
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| |Number of continuous measurements for INxN channels
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| |-
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| |0x'''X'''406
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| |4096·'''X''' + 1030
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| |holding
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| |RW
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| |0
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| |0 - 65000
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| |Characteristic time of lowpass filter for INxP or INx channels in differential mode, ms
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| |-
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| |0x'''X'''407
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| |4096·'''X''' + 1031
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| |holding
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| |RW
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| |0
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| |0 - 65000
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| |The characteristic time lowpass filter for INxN channels, ms
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| |-
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| |0x'''X'''408
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| |4096·'''X''' + 1032
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| |holding
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| |RW
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| |0
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| |16-bit signed int
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| |The lower limit of the measuring range of the active sensor channels INx INxP or in differential mode
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| |-
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| |0x'''X'''409
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| |4096·'''X''' + 1033
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| |holding
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| |RW
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| |0
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| |16-bit signed int
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| |The lower limit of the measuring range of the active sensor for INxN channels
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| |-
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| |0x'''X'''40A
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| |4096·'''X''' + 1034
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| |holding
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| |RW
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| |1000
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| |16-bit signed int
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| |The upper limit of the measuring range of the active sensor channels INx or INxP in differential mode
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| |-
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| |0x'''X'''40B
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| |4096·'''X''' + 1035
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| |holding
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| |RW
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| |1000
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| |16-bit signed int
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| |The upper limit of the measuring range of the active sensor INxN channels
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| |-
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| |0x'''X'''40C
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| |4096·'''X''' + 1036
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| |holding
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| |RW
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| |0
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| |0 (авто), 1, 2, 4, 8, 16, 32, 64, 128
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| |Gain factor for INxP or INx channels in differential mode
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| |-
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| |0x'''X'''40D
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| |4096·'''X''' + 1037
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| |holding
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| |RW
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| |0
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| |0 (авто), 1, 2, 4, 8, 16, 32, 64, 128
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| |The gain factor for INxN channels
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| |-
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| ! colspan="7" |Measured values
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| |-
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| |0x'''X'''500
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| |4096·'''X''' + 1280
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| |input
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| |R
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| |0
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| |32-bit signed int
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| |Measured value for inxp or differential INX channel
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| |-
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| |0x'''X'''502
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| |4096·'''X''' + 1282
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| |input
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| |R
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| |0
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| |32-bit signed int
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| |The measured value for INxN channel
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| |-
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| |0x'''X'''504
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| |4096·'''X''' + 1284
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| |input
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| |R
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| |0
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| |16-bit signed int
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| |Converted to physical quantity value for inxp channel or differential INx channel
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| |-
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| |0x'''X'''505
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| |4096·'''X''' + 1285
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| |input
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| |R
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| |0
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| |16-bit signed int
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| |Converted into physical quantity value for channel INxN
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| |-
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| |0x'''X'''506
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| |4096·'''X''' + 1286
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| |input
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| |R
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| |1
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| |16-bit signed int
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| |The current gain factor for channel INxP or differential channels INx
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| |-
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| |0x'''X'''507
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| |4096·'''X''' + 1287
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| |input
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| |R
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| |1
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| |16-bit signed int
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| |The current gain factor for channel INxN
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| |-
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| |0x0600
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| |1536
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| |input
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| |R
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| |0
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| |16-bit signed int
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| |Terminal voltage +5V, мВ
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| |-
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| |0x0601
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| |1537
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| |input
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| |R
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| |0
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| |16-bit signed int
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| |Temperature inside the device, °C·100
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| |}
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| Since each input supports and differential (scheme in Fig. 1,4,7) and normal mode (scheme in Fig. 2,3,5,6) operation, the sensor type is set for inxp and INxN inputs separately in the respective registers 0x'''X'''400 и 0x'''X'''401, where '''X''' is the input number from 1 to 11 in hexadecimal (0x1 to 0xB).
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| If the channel is set to automatic gain factor, the channel polling rate may be reduced by requiring multiple measurements to match the gain factor.
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| Only gain factors 1, 2 and 4 are available for normal channel operation.
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| If the differential mode was set for INxP input, the values of the configuration register INxN inputs are ignored. Only normal mode can be installed for inputs INxN.
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| == Description of device operation modes ==
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| The device allows you to configure the following operating modes for each input:
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| * Voltage measurement relative to +5V (in differential or normal mode)
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| * Voltage measurement (differential or normal mode)
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| * Resistance measurement (in differential or normal mode)
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| * Current measurement (normal mode only)
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| * Resistance measurement via current measurement (normal mode only)
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| Table 4 provides a complete description of all possible operating modes. These modes are "basic", the measurement of signals from standard sensors is based on them.
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| The registers "sensor type" (0x'''X'''400, 0x'''X'''401) for each input can store codes from table 4 or from table 5. To measure non-standard values, you can select the input type and the measurement range manually from table 4.
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| {| class="wikitable"
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| |+Table 4. Description of the device operation modes.
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| !Measurable type
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| signal
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| !Input mode
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| !Code
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| HEX
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| !Code
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| DEC
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| !Description
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| !Gain factor
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| !Measuring range
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| !Error
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| !Output format
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| of data
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| |-
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| | rowspan="6" |Voltage measurement
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| relative to +5V
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| | rowspan="3" |Normal
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| | rowspan="3" |0x0000
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| | rowspan="3" |0
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| | rowspan="3" |Voltage measurement from ratiometric sensors (diagram in Fig.6)
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| Voltage measurement from 0 to 5V (diagram in Fig.2)
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| |1
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| |0...(+5V)
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| | rowspan="3" |±0.1%
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| | rowspan="6" |% · 100
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| |-
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| |2
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| |0...(+5V / 2)
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| |-
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| |4
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| |0...(+5V / 4)
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| |-
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| | rowspan="3" |Differential
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| | rowspan="3" |0x0100
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| | rowspan="3" |256
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| | rowspan="3" |differential voltage Measurement from -5 to 5 V (diagram in Fig. 1)
| |
| |1
| |
| |± (+5V)
| |
| | rowspan="3" |±0.1%
| |
| |-
| |
| |2
| |
| |± (+5V / 2)
| |
| |-
| |
| |4
| |
| |± (+5V / 4)
| |
| |-
| |
| | rowspan="11" |Measurement
| |
| voltages
| |
| | rowspan="3" |Normal
| |
| | rowspan="3" |0x0001
| |
| | rowspan="3" |1
| |
| | rowspan="3" |Normal voltage measurement from 0 to 2 V (diagram in Fig.2)
| |
| |1
| |
| |0...2048 MB
| |
| | rowspan="3" |±0.2%
| |
| | rowspan="11" |mV · 100
| |
| |-
| |
| |2
| |
| |0...1024 MB
| |
| |-
| |
| |4
| |
| |0...512 MB
| |
| |-
| |
| | rowspan="8" |Differential
| |
| | rowspan="8" |0x0101
| |
| | rowspan="8" |257
| |
| | rowspan="8" |differential voltage Measurement from -2 V to 2 V (diagram in Fig.1)
| |
| | |
| Measuring the voltage from a thermocouple (diagram in Fig.4)
| |
| |1
| |
| |± 2048 mV
| |
| | rowspan="3" |±0.2%
| |
| |-
| |
| |2
| |
| |± 1024 mV
| |
| |-
| |
| |4
| |
| |± 512 mV
| |
| |-
| |
| |8
| |
| |± 256 mV
| |
| | rowspan="5" |±0.25%
| |
| |-
| |
| |16
| |
| |± 128 mV
| |
| |-
| |
| |32
| |
| |± 64 mV
| |
| |-
| |
| |64
| |
| |± 32 mV
| |
| |-
| |
| |128
| |
| |± 16 mV
| |
| |-
| |
| | rowspan="9" | Resistance measurement
| |
| | |
| | rowspan="3" |Normal
| |
| for INxP inputs
| |
| | rowspan="6" |0x0002
| |
| | rowspan="6" |2
| |
| | rowspan="6" |Resistance measurement using two-wire circuit (diagram in Fig.5)
| |
| | |
| Connection of sensors of dry contact type (diagram in Fig.5)
| |
| |1
| |
| |0...5000 Ohms
| |
| | rowspan="3" |±0.1%
| |
| | rowspan="9" |Ohm · 100
| |
| |-
| |
| |2
| |
| |0...2550 Ohms
| |
| |-
| |
| |4
| |
| |0...1275 Ohms
| |
| |-
| |
| | rowspan="3" |Normal
| |
| for INxN inputs
| |
| |1
| |
| |0...5100 Ohms
| |
| | rowspan="3" |±1% nominal
| |
| ±6% max
| |
| |-
| |
| |2
| |
| |0...2550 Ohms
| |
| |-
| |
| |4
| |
| |0...1275 Ohms
| |
| |-
| |
| | rowspan="3" |Differential
| |
| | |
| (three-wire circuit)
| |
| | rowspan="3" |0x0102
| |
| | rowspan="3" |258
| |
| | rowspan="3" |Three-wire resistance measurement (diagram in Fig. 7)
| |
| |1
| |
| |0...5000 Ohms
| |
| | rowspan="3" |±0.1%
| |
| |-
| |
| |2
| |
| |0...2550 Ohms
| |
| |-
| |
| |4
| |
| |0...1275 Ohms
| |
| |-
| |
| | rowspan="3" |Currents measurement
| |
| | |
| | rowspan="3" |Normal
| |
| | rowspan="3" |0x0003
| |
| | rowspan="3" |3
| |
| | rowspan="3" |Current measurement from 0 to 20 mA (diagram in Fig.3)
| |
| |1
| |
| |0...20.48 mA
| |
| | rowspan="3" |±0.2%
| |
| | rowspan="3" |mA · 10000
| |
| |-
| |
| |2
| |
| |0...10.24 mA
| |
| |-
| |
| |4
| |
| |0...5.12 mA
| |
| |-
| |
| | rowspan="3" |Resistance measurement
| |
| through measurement of the current in the circuit
| |
| | rowspan="3" |Normal
| |
| | rowspan="3" |0x0004
| |
| | rowspan="3" |4
| |
| | rowspan="3" |NTC thermistor resistance measurement (diagram in Fig. Eight)
| |
| The current in the circuit is only at the time of polling the current input, during the polling of other inputs
| |
| | |
| current absents, unlike the "current measurement" mode, where the current is always on.
| |
| |1
| |
| |200 Ohms .. 250 ohms
| |
| | rowspan="3" |±3% at end of range
| |
| | |
| ±1.5% in the middle of the range
| |
| | |
| ±0.5% at the beginning of the range
| |
| | rowspan="3" |Ohm
| |
| |-
| |
| |2
| |
| |500 Ohms .. 500 kOhm
| |
| |-
| |
| |4
| |
| |1200 Ohms .. 1 Mω
| |
| |}
| |
| | |
| == Types of supported standard sensors ==
| |
| The supported types of standard sensors are shown in table 5. When using standard sensors, the values of registers 0x'''X'''40A and 0x'''X'''40B (gain) are ignored. Standard sensors have code 0x1XXX.
| |
| {| class="wikitable"
| |
| |+Table 5. Types of standard sensors
| |
| !Sensor code
| |
| HEX
| |
| !Sensor code
| |
| DEC
| |
| !Description
| |
| !Coefficient
| |
| gains
| |
| !Format
| |
| raw data
| |
| !Format
| |
| recalculated data
| |
| !Error
| |
| |-
| |
| ! colspan="7" |Thermoelectric converters
| |
| Mode of operation – measuring the voltage from the thermocouple (diagram in Fig. Four)
| |
| |-
| |
| |0x1000
| |
| |4096
| |
| |THA (K)
| |
| |32
| |
| |mV · 100
| |
| |°C · 10
| |
| |±0.5 °C
| |
| |-
| |
| ! colspan="7" |two-wire resistance Thermometers
| |
| Mode of operation – resistance measurement on a two-wire scheme (scheme in Fig. Five)
| |
| |-
| |
| |0x1100
| |
| |4352
| |
| |Pt 50 (α = 0.00385 °C <sup>-1</sup>)
| |
| |4
| |
| | rowspan="15" |Ohm · 100
| |
| | rowspan="15" |°C · 10
| |
| | rowspan="2" |±0.4 °C
| |
| |-
| |
| |0x1101
| |
| |4353
| |
| |Pt 100 (α = 0.00385 °C <sup>-1</sup>)
| |
| |4
| |
| |-
| |
| |0x1102
| |
| |4354
| |
| |Pt 500 (α = 0.00385 °C <sup>-1</sup>)
| |
| |2
| |
| | rowspan="2" |±0.25 °C
| |
| |-
| |
| |0x1103
| |
| |4355
| |
| |Pt 1000 (α = 0,00385 °C <sup>-1</sup>)
| |
| |1
| |
| |-
| |
| |0x1110
| |
| |4368
| |
| |50P (α = 0.00391 °C <sup>-1</sup>)
| |
| |4
| |
| | rowspan="2" |±0.4 °C
| |
| |-
| |
| |0x1111
| |
| |4369
| |
| |100P (α = 0.00391 °C <sup>-1</sup>)
| |
| |4
| |
| |-
| |
| |0x1112
| |
| |4370
| |
| |500P (α = 0.00391 °C <sup>-1</sup>)
| |
| |2
| |
| | rowspan="2" |±0.25 °C
| |
| |-
| |
| |0x1113
| |
| |4371
| |
| |1000P (α = 0.00391 °C <sup>-1</sup>)
| |
| |1
| |
| |-
| |
| |0x1120
| |
| |4384
| |
| |50M (α = 0.00428 °C <sup>-1</sup>)
| |
| |4
| |
| | rowspan="2" |±0.35 °C
| |
| |-
| |
| |0x1121
| |
| |4385
| |
| |100M (α = 0.00428 °C <sup>-1</sup>)
| |
| |4
| |
| |-
| |
| |0x1122
| |
| |4386
| |
| |500M (α = 0.00428 °C <sup>-1</sup>)
| |
| |4
| |
| | rowspan="3" |±0.25 °C
| |
| |-
| |
| |0x1123
| |
| |4387
| |
| |1000M (α = 0,00428 °C <sup>-1</sup>)
| |
| |2
| |
| |-
| |
| |0x1130
| |
| |The 4400
| |
| |Ni 100 (α = 0,00617 °C <sup>-1</sup>)
| |
| |4
| |
| |-
| |
| |0x1131
| |
| |4401
| |
| |Ni 500 (α = 0,00617 °C <sup>-1</sup>)
| |
| |2
| |
| | rowspan="2" |±0.2 °C
| |
| |-
| |
| |0x1132
| |
| |4402
| |
| |Ni 1000 (α = 0,00617 °C <sup>-1</sup>)
| |
| |1
| |
| |-
| |
| ! colspan="7" |three-wire resistance Thermometers
| |
| Mode of operation – resistance measurement on a three-wire scheme (scheme in Fig. Seven)
| |
| |-
| |
| |0x1200
| |
| |4608
| |
| |Pt 50 (α = 0.00385 °C <sup>-1</sup>)
| |
| |4
| |
| | rowspan="15" |Ohm · 100
| |
| | rowspan="15" |°C · 10
| |
| | rowspan="2" |±0.4 °C
| |
| |-
| |
| |0x1201
| |
| |4609
| |
| |Pt 100 (α = 0.00385 °C <sup>-1</sup>)
| |
| |4
| |
| |-
| |
| |0x1202
| |
| |4610
| |
| |Pt 500 (α = 0.00385 °C <sup>-1</sup>)
| |
| |2
| |
| | rowspan="2" |±0.25 °C
| |
| |-
| |
| |0x1203
| |
| |4611
| |
| |Pt 1000 (α = 0,00385 °C <sup>-1</sup>)
| |
| |1
| |
| |-
| |
| |0x1210
| |
| |4624
| |
| |50P (α = 0.00391 °C <sup>-1</sup>)
| |
| |4
| |
| | rowspan="2" |±0.4 °C
| |
| |-
| |
| |0x1211
| |
| |4625
| |
| |100P (α = 0.00391 °C <sup>-1</sup>)
| |
| |4
| |
| |-
| |
| |0x1212
| |
| |4626
| |
| |500P (α = 0.00391 °C <sup>-1</sup>)
| |
| |2
| |
| | rowspan="2" |±0.25 °C
| |
| |-
| |
| |0x1213
| |
| |4627
| |
| |1000P (α = 0.00391 °C <sup>-1</sup>)
| |
| |1
| |
| |-
| |
| |0x1220
| |
| |4640
| |
| |50M (α = 0.00428 °C <sup>-1</sup>)
| |
| |4
| |
| | rowspan="2" |±0.35 °C
| |
| |-
| |
| |0x1221
| |
| |4641
| |
| |100M (α = 0.00428 °C <sup>-1</sup>)
| |
| |4
| |
| |-
| |
| |0x1222
| |
| |4642
| |
| |500M (α = 0.00428 °C <sup>-1</sup>)
| |
| |4
| |
| | rowspan="3" |±0.25 °C
| |
| |-
| |
| |0x1223
| |
| |4643
| |
| |1000M (α = 0,00428 °C <sup>-1</sup>)
| |
| |2
| |
| |-
| |
| |0x1230
| |
| |4656
| |
| |Ni 100 (α = 0,00617 °C <sup>-1</sup>)
| |
| |4
| |
| |-
| |
| |0x1231
| |
| |4657
| |
| |Ni 500 (α = 0,00617 °C <sup>-1</sup>)
| |
| |2
| |
| | rowspan="2" |±0.2 °C
| |
| |-
| |
| |0x1232
| |
| |4658
| |
| |Ni 1000 (α = 0,00617 °C <sup>-1</sup>)
| |
| |1
| |
| |-
| |
| ! colspan="7" |Current output sensors
| |
| Operating mode – current measurement from 0 to 20 mA (diagram in Fig. Three)
| |
| |-
| |
| |0x1300
| |
| |4864
| |
| |0 to 5 mA
| |
| |4
| |
| |mA · 10000
| |
| |0 mA = lower bound (registers 0x'''X'''408 / 0x'''X'''409)
| |
| 5 mA = upper bound (registers 0x'''X'''40A / 0x'''X'''40B)
| |
| |±0.25 %
| |
| |-
| |
| |0x1301
| |
| |4865
| |
| |0 to 20 mA
| |
| |1
| |
| |mA · 10000
| |
| |0 mA = lower bound (registers 0x'''X'''408 / 0x'''X'''409)
| |
| 20 mA = upper bound (registers 0x'''X'''40A / 0x'''X'''40B)
| |
| |±0.25 %
| |
| |-
| |
| |0x1302
| |
| |4866
| |
| |from 4 to 20 mA
| |
| |1
| |
| |mA · 10000
| |
| |4 mA = lower bound (registers 0x'''X'''408 / 0x'''X'''409)
| |
| 20 mA = upper bound (registers 0x'''X'''40A / 0x'''X'''40B)
| |
| |±0.25 %
| |
| |-
| |
| ! colspan="7" |Sensors with voltage output in normal mode
| |
| Operating mode – voltage measurement in normal mode from 0 to 2 V (diagram in Fig. Two)
| |
| |-
| |
| |0x1400
| |
| |5120
| |
| |0 to 1 V
| |
| |2
| |
| |mV · 100
| |
| |0 V = lower bound(registers 0x'''X'''408 / 0x'''X'''409)
| |
| 1 V = upper bound (registers 0x'''X'''40A / 0x'''X'''40B)
| |
| |±0.2 %
| |
| |-
| |
| ! colspan="7" |Sensors with voltage output in differential mode
| |
| Operating mode – voltage measurement in differential mode from -2 to 2 V (diagram in Fig. One)
| |
| |-
| |
| |0x1500
| |
| |5376
| |
| |-50 to 50 mV
| |
| |32
| |
| |mV · 100
| |
| | -50 mV = lower bound(registers 0x'''X'''408 / 0x'''X'''409)
| |
| 50 mV = upper bound (registers 0x'''X'''40A / 0x'''X'''40B)
| |
| |±0.2 %
| |
| |-
| |
| ! colspan="7" |Contact sensors (dry)
| |
| Mode of operation – resistance measurement on a two-wire scheme (scheme in Fig. Five)
| |
| |-
| |
| |0x1600
| |
| |5632
| |
| |Dry contact
| |
| |1
| |
| |Ohm · 100
| |
| |0 - sensor open or missing
| |
| 1 - sensor closed
| |
| |
| |
| |-
| |
| ! colspan="7" |NTC thermistors
| |
| Mode of operation - resistance measurement through current measurement (diagram in Fig. Eight)
| |
| |-
| |
| |0x1700
| |
| |5888
| |
| |NTC 10k (B = 3988 K)
| |
| |1 - 4 (auto)
| |
| |Ohm
| |
| |°C · 10
| |
| |Below-40 °C: ±1 °C
| |
| -40 to -20 °C: ±0.5 °C
| |
| | |
| Above -20 °C: ±0.25 °C
| |
| |}
| |
| | |
| == Device configuration examples ==
| |
| Table 6 shows some examples of device configuration. Register addresses are given for channel 1. To use other channels, the addresses should be recalculated according to table 3.
| |
| | |
| The table contains only those cells that affect the configuration of the input for measuring signals from these sensors. "0"should be written to other configuration registers.
| |
| {| class="wikitable"
| |
| |+Table 6. Examples of device configuration.
| |
| ! rowspan="2" |register Address
| |
| ! colspan="4" |Sample configurations for some sensors
| |
| |-
| |
| !Temperature measurement
| |
| K-type thermocouple
| |
| | |
| (connected to IN1 input).
| |
| | |
| Diagram in Fig. 4
| |
| !Temperature measurement
| |
| Pt1000 resistance thermometers
| |
| | |
| for the three-wire scheme
| |
| | |
| (connected to IN1 input).
| |
| | |
| Diagram in Fig. 7
| |
| !Signal measurement with
| |
| sensor with 4-20 mA current output
| |
| | |
| (connected to IN1P input).
| |
| | |
| Diagram in Fig.3
| |
| !Temperature measurement
| |
| NTC thermistor
| |
| | |
| 10 kOhm, B = 3988 K.
| |
| | |
| Diagram in Fig. 8
| |
| |-
| |
| ! colspan="5" |Configuration registers
| |
| |-
| |
| |0x1400
| |
| |0x1000
| |
| |0x1203
| |
| |0x1302
| |
| |0x1700
| |
| |-
| |
| |0x1401
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |-
| |
| |0x1402
| |
| |20
| |
| |20
| |
| |20
| |
| |20
| |
| |-
| |
| |0x1403
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |-
| |
| |0x1404
| |
| |0
| |
| |0
| |
| |0
| |
| |0
| |
| |-
| |
| |0x1405
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |-
| |
| |0x1406
| |
| |
| |
| |
| |
| |100
| |
| |
| |
| |-
| |
| |0x1407
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |-
| |
| |0x1408
| |
| |
| |
| |
| |
| |800
| |
| |
| |
| |-
| |
| |0x1409
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |-
| |
| |0x140A
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |-
| |
| |0x140B
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |-
| |
| ! colspan="5" |registers of measured values
| |
| |-
| |
| |0x1500
| |
| |Thermocouple voltage, mV · 100
| |
| |Sensor resistance, Ohm · 100
| |
| |Current, mA · 10000
| |
| |Sensor resistance, Ohm
| |
| |-
| |
| |0x1502
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |-
| |
| |0x1504
| |
| |Junction temperature, °C · 10
| |
| |Sensor temperature, °C · 10
| |
| |100 - at a current of 4 mA; 800 - at a current of 20 mA
| |
| if the value is not in the range [100..800], the sensor is defective or missing
| |
| |Sensor temperature, °C · 10
| |
| |-
| |
| |0x1505
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |-
| |
| |0x1506
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |-
| |
| |0x1507
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |}
| |
