PC-link CP2 to CP1 only works in 1 direction.

[Ralf 0]

Hello,

 

i am trying to get my connection between my 2 PLCs to work. (CP1H master -> CP2E-N slave).

i had already read i need to jump my data areas from 3100 to 200. 

Below you can see that the CP2E (right) is receiving the signal and CP1H(left) is not receiving the signal. Am i doing something wrong here. I tried changing the PC link unit number to 0 because i was i doubt where i should start counting.

 

Hope you guys can help me out here! 

[Michael Walsh 268]

Quick tip on this subject:  When searching the manuals, you will see it sometimes referred to as "PC Link" and other times as "PLC LInk".  All of the helpful information can be found searching for "PLC Link" with respect to examples and how to set it up.

I think that your mistake is that you are assuming that PC Link unit 0 uses the first area (3100-3109 on CP1H and 200-209 on CP2E).  It does not.  That area is for the Master.  Node 0 starts at 3110 and 210.  So, your node #1 will actually be at 220 in the CP2E.  

This example is taken from the CP2E Unit Software User's Manual: