Hello!
I have a Siemens S7-1200 and CM1241 module. I use them for my pressure sensor.
But I had to test the sensor on Mitsubishi PLC. Then I went back to Siemens (which I hadn't turned on for a while and didn't do anything with it). Now Siemens doesn't interact with sensor.
Then I connected PLC to a PC via USB-RS458 adapter, it sends " 00 " every second. I used to work with this adapter and both PLCs and saw the correct commands.
I also tried two different CM1241 modules.
Can you help me determine what the problem might be?
Converter, sensor and all cables are operable.
Hardware config: 9.6 kbps; Even parity; 8 bits; 1 stop bit.
MB_COMM_LOAD: baud - 9600; parity - 2; Correct MB_Master_DB and CM-1241 port
MB_MASTER: mode - 0; Data_addr - 30003; Data_len - 2; Data_ptr - my DWORD tag
P.S.: I can't upload screens. Server return error...