plc - hmi communication problem

panthripu

Member
Join Date
Mar 2004
Posts
228
we have two plc and three hmi connected throught ethernet and commuicating.Few days back we had to changed the old IP adresses of all nodes due to some problem.After changing IP one PLC is communicating with HMI but from other PLc i am not getting any data.
I changed IP address of PLC,HMI and in WinCC also.
How should i check and slove this problem?
 
Have you tried rebooting, some times this is the only way to restart the comms after a change :confused:
 
problem solved

thanx friends
yes i was able to ping.and finally i found we have not downloaded netpro to one plc.
 

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