Hey Murof,

i have 16 s7-1200 PLC's connected on profinet network,with a PC which has Wincc RT Advanced 128 powertag software.

Everything works perfectly but certain IO field start showing ### after a certain time when Wincc RT is switched on .

Would you please suggest some solution for this, i also pinged the ip's of all PLC they are all echoing back.

I can't think of any other solution so please help!!

Would  appreciate.. 

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Split from WinCC RT, IO fields showing ##.

hi 

check MAC address in Wincc setting , should be match with CP (Ethernet)

Hello dhaniamandeep,

what about System Alarms?

Can you post a screenshot - before and after ### appears?

Regards,

Frink