Q4: How To Write Data To Output Channels On A Modbus Rtu Slave Device - ICP DAS USA MDC-700 Series User Manual

Q4: How to write data to output channels on a Modbus RTU slave device?
A4:
Step 1: Edit the polling definition for the output channels with read function code in the
config.csv file. (For example, use 01 to read DO channels, 03 to read AO channels)
# UseComPort SlaveModbusID FunctionCode RegStart
* 1
* 2
* 3
* 4
* 5
*
Step 2: Import the config.csv file into the MDC‐700, wait the MDC‐700 reboot in 5 seconds, and
then check the addresses for the local registers mapped to the output channels.
Step 3: Write data with corresponding function code (05/06/15/16) on your Modbus master device
to the local registers mapped for the output channels, the MDC‐700 will process writing
operations to the slave devices.
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Addr
1 3
2 4
3 2
4 1
5 3
Timeout
RegCount
EventProcess
0 8
0 8
0 8
0 8
8 8
Preset
Value
2 0
2 0
2 0
2 0
2 0