Hello guys,

I installed new simatic rack pc and working normal but after few hours I see sometimes communication fail and message coming No communication plc and visu computers(scada monitoring computer).

I want to know what could be reason for communication fail. 

Kindly support and guide me to solve the issue. 

Regards. 

Uj

Hi Bd jamal,

U need to share more details dear !!!!!!!!!!!! See below-

PLC-

SCADA with version-

Simatic manager Version-

Snaps of the popup-

Communication architecture /protocol- 

Issue briefing-

Sachinpatke

Hi Bd jamal,

U need to share more details dear !!!!!!!!!!!! See below-

PLC-

SCADA with version-

Simatic manager Version-

Snaps of the popup-

Communication architecture /protocol- 

Issue briefing-

 Hello sochin,

   Thanks for the reply. Plc Siemens step 7 400,

Simatic manager version 5.5.

Warning message No communication with plc and visu computers. 

Ethernet communication using.

Regards.

Hi Bd jamal,

1. Check earthing.

2. Power cables should be very far from comm. cable

3. Check/test crimping of cables.