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'''[https://wirenboard.com/en/product/WB-MAI2-mini-CC/ Buy online]''' | '''[https://wirenboard.com/en/product/WB-MAI2-mini-CC/ Buy online]''' | ||
{{#vardefine:ProductName1|WB-MAI2-mini-CC}} {{#vardefine:ProductFullName1|Analog input module WB-MAI2-mini/CC}}{{#vardefine:FileName1|WB-MAI2-mini_СС}} | |||
== | == Purpose == | ||
WB-MAI2-mini/CC | WB-MAI2-mini/CC is a compact analog input module designed to measure current signal 4..20 mA via two independent channels. The module is controlled from the controller or PC via RS-485 bus by Modbus commands. | ||
== | == Specifications == | ||
{| class="wikitable" | {| class="wikitable" | ||
|+ | |+Table 1. Technical parameters. | ||
! | !Parameter | ||
! | !Value | ||
|- | |- | ||
! colspan="2" | | ! colspan="2" |Power | ||
|- | |- | ||
| | |Supply voltage | ||
|9 | |9 V – 28 V | ||
|- | |- | ||
! colspan="2" | | ! colspan="2" |measurement Channels | ||
|- | |- | ||
| | |Number of channels | ||
| 2 | | 2 | ||
|- | |- | ||
| | |Current measurement | ||
|0 – 20 | |0 – 20 mA | ||
|- | |- | ||
| | |Input impedance | ||
|49 | |A 49.9 Ohm | ||
|- | |- | ||
| | |Current measurement error | ||
|±1% | |±1% | ||
|- | |- | ||
! colspan="2" | | ! colspan="2" |Control | ||
|- | |- | ||
| | |Management interface | ||
|RS-485 | |RS-485 | ||
|- | |- | ||
| | |Interface isolation | ||
| | |no | ||
|- | |- | ||
| | |Communication protocol | ||
|Modbus RTU, | |Modbus RTU, the address is set by software, factory settings are indicated on the label | ||
|- | |- | ||
| | |RS-485 interface parameters | ||
| | |Default speed of 9600 bps; data bits 8; parity N; stop bits 2. | ||
Interface parameters can be configured programmatically: | |||
* | * Speed: 1200, 2400, 4800, 9600 (default), 19200, 38400, 57600, 115200 bit/s <br>([[UART_Communication_Settings|configure RS-485 communication parameters for wiren Board modbus devices]]) | ||
* | * Data: 8 bit | ||
* | * Parity check: none (default), 1 - odd (odd), 2 - even (even) | ||
* | * Stop bits: 1, 2 (default) | ||
|- | |- | ||
| | |Ready for operation after power supply | ||
|1 c | |1 c | ||
|- | |- | ||
! colspan="2" | | ! colspan="2" |dimensions | ||
|- | |- | ||
| | |Size | ||
|57 x 18 x 14 | |57 x 18 x 14 mm | ||
|- | |- | ||
! colspan="2" | | ! colspan="2" |operating Conditions | ||
|- | |- | ||
| | |Air temperature | ||
| | |-40°C to +80°C | ||
|- | |- | ||
| | |Relative humidity | ||
| | |up to 98%, without condensation | ||
|} | |} | ||
== | == Connection diagrams == | ||
The module is made in a compact housing and is designed for installation in solder boxes and cable channels. | |||
[[ | [[File:WB-MAI2-connections.png|без|мини|Сurrent measurement]] | ||
The figure shows the connection diagram of sensors with a current output of 0-20 mA (4-20 mA). The internal resistance of the inputs — 49.9 Ohms. | |||
== | == Presentation in the web interface == | ||
[[Файл:WB-MAI2-web.png|без|мини|]] | [[Файл:WB-MAI2-web.png|без|мини|]] | ||
The web interface for the module displays current values (controls "Current input 1 (mA)" and "Current input 2 (mA)"), supply voltage and serial number. The "CC" in the device name indicates that it supports two current inputs ('''C'''urrent). | |||
== | == Description of Modbus registers == | ||
All Modbus registers of the device are divided into 2 groups: | |||
* | * General registers that define device parameters | ||
* | * Registers of measured values | ||
=== | === General registers === | ||
{| | {| border="1" class="wikitable" style="text-align:center" | ||
! | !Register/ address | ||
! | !type | ||
! | !read-write | ||
! | !default | ||
! | !format | ||
! | !purpose | ||
|- | |- | ||
|104-105 || input || R || || 32-bit unsigned int | | 104-105 || input || R|| || 32-bit unsigned int || uptime counter in seconds | ||
|| | |||
|- | |- | ||
| 110 || holding || RW || 96 || | | 110 || holding || RW|| 96 || baud rate / 100 || RS-485 port speed, '''divided by 100'''. Permissible speeds: 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200 <br>([[UART_Communication_Settings/en|configure RS-485 communication parameters for Wiren Board Modbus devices]]) | ||
|- | |- | ||
| 111 || holding || RW || 0 || || | | 111 || holding || RW|| 0 || || configure the RS-485 port parity bit. Valid values: 0 - no parity bit (none), 1 - odd (odd), 2 - even (even) | ||
|- | |- | ||
| 112 || holding || RW || 2 || || | | 112 || holding || RW|| 2 || || number of stop bits of RS-485 port. Valid values: 1, 2 | ||
|- | |- | ||
| 120 (0x78) || holding || RW || 0 || | | 120 (0x78) || holding || RW|| 0 || 0 || write to the register causes a stateless | ||
reboot of the module | |||
|- | |- | ||
| 121 (0x79) || input || R || - || | | 121 (0x79) || input || R || - || mV || current supply voltage of the module | ||
|- | |- | ||
| 128 (0x80) || holding || RW || | | 128 (0x80) || holding || RW || written on the label on the case || || Modbus address of the device | ||
|- | |- | ||
| 200-206 || input || R || {'M','A','I','2','C','C'} || | | 200-206 || input || R || {'M','A','I','2','C','C'} | | | device signature | ||
|- | |- | ||
| 220-241 || input || R || || | | 220-241 || input || R | | | | _date__ _time__|| firmware build date | ||
|- | |- | ||
| 250-269 || input || R || | | | 250-269 || input || R | | | / string, null-terminated || firmware version | ||
|- | |- | ||
| 270-271 || input || R || || | | 270-271 || input || R|| || 32-bit unsigned int || unique identifier (S/N) | ||
|- | |- | ||
|} | |} | ||
=== | === Registers containing the values of the measured values === | ||
{| | {| border="1" class="wikitable" style="text-align:center; width:1000px;" | ||
! | !Register / address (hex) | ||
! | !Type | ||
! | !Digit capacity | ||
! | !Byte order | ||
! | !Format | ||
! | !Multiplier | ||
! | !Parameter | ||
! | !Purpose | ||
! | !Unit | ||
|- | |- | ||
| 246 | | 246 || input || s16 || big endian || (value) || 3.125 e-02 || Current input 1 (mA) | | / channel Current 1 || mA | ||
|- | |- | ||
| 247 | | 247 || input || s16 || big endian || (value) || 3.125 e-02 || Current input 2 (mA) | | / channel Current 2 || mA | ||
|- | |- | ||
|} | |} | ||
== | == Images and drawings of the device == | ||
{{Wbincludes:WBPicturesNoDrawing|1}} | {{Wbincludes:WBPicturesNoDrawing|1}} | ||
<!--{{Wbincludes:WBPictures|1}}--> | <!--{{Wbincludes:WBPictures|1}}--> |