RJ71C24 R4 Modbus Communication

RJ71C24 can communicate data with the following MODBUS slave devices.
MODBUS slave (RTU)-compatible device
MODBUS slave (ASCII)-compatible device
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Program Sample At:
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Operations when selecting "Fixed Interval" for the
communication setting
Starting communication
Communication starts after a latency time elapses when turning the power OFF and ON or resetting a CPU module.
After resetting the CPU module, preparation processing is performed on the system side such as parameter setting check
(station numbers and the channel of the host station). If an error occurs in the processing, data is not sent and received
Operations when selecting "On Request" for the communication
setting
Communication starts by turning 'Request to start communication at request for each setting number' (Un\G32640 to
Un\G32671) from OFF to ON when a latency time elapses after turning the power OFF and ON or resetting a CPU module

[@xcyong9475]

Hi, just wonder could this method apply to RJ71C24 in single channel for multi drop MODBUS RTU slave devices communication? Oh the other hand, is there any communication error flag to indicate communication fail for each communication request?

[@syedhaniraza]

why you used U0\g32640.0 bit register? and how to see if I am getting real data from my RTU slave device? you didn't filmed fully. And will I be able to test rtu slave with Modbus Pull???

[@syedhaniraza]

Very urgent querry...