Hi,
I am trying to read modbus holding regiser values using cRIO-9074 and 9871 fpga module from 3rd party Modbus (rs485) device (ADAM4017). As shown in pic (attached), when 'READ COIL' is selected we could see discrete signal in green LEDs.(high lighted in yellow)
While selecting the "read holding registers" in order to read the holding register data, "Register Number" appears in holding register array. e.g. selecting starting address 1,2,3, register number 256, 512,....apears...
Any comment/suggestion pls.
Regards,
