WBIO-AI-DV-12 4-20мА analog inputs module

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WBIO-AI-DV-12

The module is designed for industrial and home automation systems and is used to measure current signals in the range up to 20 mA. A typical application of the module can be considered to receive data from devices that transmit information on the interface "current loop".

IMPORTANT: unlike other WBIO modules, only one instance can be connected to a single controller or interface module.

Buy WBIO-AI-DV-12_4-20MA in the online store

Design

The module contains 12 current inputs A1 — A12 for the connection of current outputs (0) 4 — 20 mA ("current loop").

For easy connection, each pair of inputs is output to one of 6 terminals. In addition to the inputs, each terminal block has +5 V and iGND lines, but the maximum current flowing through the +5 V line should not exceed 0.5 A. Thus, each terminal block has +5 V, 2 current inputs and iGND.

The module is galvanically isolated from the controller circuits, including the iGND line.

Technical specifications

Parameter	Value
General
Number of inputs	12
Input type	analog, current measurement
Galvanic isolation	group, from controller circuits, 1 kV
Measured current	0 — 20 mA
Input impedance	50 Ohms
Measurement error	0.1% + 0.003 mA
Other
Module type	"I" (inverted address scheme)
Maximum power consumption	0.25 W
Width, DIN units	3
Overall dimensions (l x W x h)	53.30 x 90.2 x 57.50 mm

Terminals and wire section
The recommended wire cross section with pin bushing insulated tip, mm2	0,75 — 1
Standard sleeve length of pin bushing insulated tip, mm	8
Tightening torque of screws, Н∙м	0,2

Current measurement

Current sensor connection

Connection to the controller

Unlike other WBIO modules, only one instance can be connected to a single controller or interface module.

To connect, you need to dock the WBIO-AI-DV-12 4-20 mА module to the right of the Wiren Board controller and make sure that all the connector pins on the module get into the corresponding connector holes on the controller. Next, you should go to the web interface of the controller (read more about the web interface in relevant section), go to the tab 'Configs' and select/etc/wb-hardware.conf. Next, in the drop-down list, select the module name WBIO-AI-DV-12 Analog Inputs.

Desired configuration file

Module selection

Now you need to activate the desired mode in the tab Channels. Channels are denoted as Channel Ax, where 'x' corresponds to the entry number. Select from the list the setting Current 0-20mA

After the necessary settings and saving changes, the device will be displayed in the Devicestab.

login mode settings

Display inputs with different operating modes

For more information, see Activating the modules in the web interface of the controller. Unlike other modules, WBIO-AI-DV-12 can be connected with the ninth module in the line of side modules. However, it must occupy the first, fifth or ninth position in the line.