Analog inputs module MR-AI-1

Analog inputs module MR-AI-1

MR-AI-1

Analog inputs module with MODBUS RTU output.
MR-AI-1 module serves as an external analog input device extending PLCs or other devices in which data exchange is via the RS-485 according to the MODBUS RTU protocol.

Functioning
The module has 4 universal analog inputs. Input type compatible 0-10V (voltage U) or 4-20mA (current I) is determined using internal jumpers. The module measures the value of input current and voltage on all inputs regardless of the hardware configurations of input types (location of jumpers). However, they will be properly measured input values ​​for which this entry is configured.
Reading values ​​of the input currents or voltages and setting communication parameters is realized through the RS-485 port using MODBUS RTU communication protocol. Switching voltage is indicated by a green LED U. Correct data exchange between the module and the second device unit is indicated by a yellow LED Tx. 

Reset communication settings
Under cover is available code switch.
Details of resetting available in the instructions below.
  

Power supply voltage9Ă·30 V DC
portsRS-485
Communication protocolMODBUS RTU
The type of workSLAVE
Speed ??- adjustable1200Ă·115200 bit/s
Data bits8
Stop bits02-sty
Bits of parityEVEN / ODD / NONE
Address1Ă·247
Maximum measuring error0,50%
Maximum power consumption30 mA
Number of analog inputs4
Input type / range - current0Ă·20 mA
Input type / range - voltage0Ă·10 V
terminalscrew terminals 2,5 mm²
Tightening torque0,4 Nm
Power consumption1 W
Working temperature-20÷50°C
dimensions1 module (18 mm)
Assemblyon rail 35 mm
Level of securityIP20
MR-AI-1 I/O connections




Schematic diagram of various types of analog converters





Module in RS-485 network





Network address setup





Reset communication settings


 


  

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