HI,
Whole day I was just doing trial and error with S7 224xp and SquareD PM710 , wanted to read data from Pm710 module to PLC,I first tried but fail.1st i used the library modbus instruction but it does not communicate..giving error=3,means no response from slave, then i tried to used tip41 from siemens , but i dont know why this is also not working. i check every parameters required, I set baud=9600, parity=none,data bits=8, stopbit=1,address=1
using port-0 of the cpu.any one can help,
NOTE:in the PM 710 manual , register address starts at 4000.
please any one have clue?
I have attched both the program.
Whole day I was just doing trial and error with S7 224xp and SquareD PM710 , wanted to read data from Pm710 module to PLC,I first tried but fail.1st i used the library modbus instruction but it does not communicate..giving error=3,means no response from slave, then i tried to used tip41 from siemens , but i dont know why this is also not working. i check every parameters required, I set baud=9600, parity=none,data bits=8, stopbit=1,address=1
using port-0 of the cpu.any one can help,
NOTE:in the PM 710 manual , register address starts at 4000.
please any one have clue?
I have attched both the program.