I am using a trial version of the Serial Port Monitor and I am trying to use a Modbus plug in to talke to and view the Modbus traffic. The plug in is for RTU and ASCII. The program under menu command does not recognize the plug-in but only directs me to free plug-in (which sends met to a program down load screen). The plug-in is in a directory named Modbus in the program files for the Advanced Serial Port Monitor. How do I get the plugin to work.
The PC is coupled with a PLC with MOBBUS-RTU. For a single register configured to be read at 40001 address, I obtain on the screen the following format:
For different decimal values in 40001 register I’m obtaining the following responses on screen: