615 data link error

[GGH]

Hello Gentelmen

I have an issue with one of my favorite PLC brand AB. I get 615 datalink error on the screen any suggestions?? thanks in advance

 

[widelto]

Normally datalink is a data exchange between plc and a drive (or devices) thru a network (dnet,cnet or enet), in this case tell us how is yours.

 

[GGH]

well here is the problem, the machine was shut down over night and the next day when turned on the message was displayed on screen. there are 3 plcs and 2 screens connected to uic1747 cards each they are device net. tried to trouble shoot the connections between each unit to see what the problem was but I'm stuck that's why I'm here, to see if anyone has had a similar problem.