kevinkevin
Member
Dear all,
I am trying to realize a configuration in which I place 2 pieces of CJ1W-ETN21 onto my PLC main rack (PLC is CJ2M-CPU33).
The 2 pieces of ETN21 will be used as Modbus TCP slave. I have downloaded the Function Block for Modbus server and the first slave works well (the function block is designed for slot 0 aka first ETN21 module).
For the second ETN21 at slot 1, I have modified the function block to read relevant information from slot 1 (address 1525) but it failed to work.
Can anyone advise what I am missing out? Many thanks.
I am trying to realize a configuration in which I place 2 pieces of CJ1W-ETN21 onto my PLC main rack (PLC is CJ2M-CPU33).
The 2 pieces of ETN21 will be used as Modbus TCP slave. I have downloaded the Function Block for Modbus server and the first slave works well (the function block is designed for slot 0 aka first ETN21 module).
For the second ETN21 at slot 1, I have modified the function block to read relevant information from slot 1 (address 1525) but it failed to work.
Can anyone advise what I am missing out? Many thanks.
