PM583-ETH OPC shut down problem


I am working on PM583-ETH plc, and developing c# program to communicate the plc through opc. The program is working mostly, but sometimes the opc suddenly shuts down, the quality of tags become bad from good. When this happens, I exit the gateway and restart the plc couple of times and the opc suddenly starts to run and tags' quality become good. Do you know what may cause this issue? Why does the opc shuts down suddenly? If anyone has any idea, I would be glad of hearing it. I need help.

Thank you very much,


Add New Comment


asked 3 months ago



No clue.

But you should not have to restart the PLC because the OPC server failed. It sounds like something quite serious is going wrong.

> "and developing c# program to communicate the plc through opc."

No you're not. You're developing a program to communicate to the OPC server. Yes this is obvious, but it is important to be clear that your C# program is supposed to be isolated from the PLC by the OPC server. The OPC server is entirely responsible for communicating to the PLC.

> "restart the plc couple of times and the opc suddenly starts to run"

So you don't restart the OPC server - instead you reboot the PLC ? In this case it sounds like the OPC server is fine and you've crashed the PLC. Are you requesting too much data too quickly from the server ?

> "Why does the opc shuts down suddenly?" If the PLC has crashed then the OPC server cant get any good data from it. So obviously all the tags will go bad.

Are there any error messages ? Windows logs ? PLC logs etc ?

Rob Lyon   

answered 3 months ago


Add New Comment

Get weekly AKS updates

Partner Exclusive Webinars


> – Login to the partner portal to register

Points Redemption Program - Redeem your points for ABB training, Bluetooth speakers and mugs. Terms and conditions >

Earn points when you refer a friend
AKS Referral Program is "Live" - Learn more

AKS Experts

Ask Govindaraj   

Rank: 10

Working in ABB India Operation Center. Have Project engineering and commissioning experience in ABB 800xA, Freelance, AC500.

Ask Dieter Henkel   

Rank: 19

Ask Flavio Mussolin   

Rank: 4

ABB AVP, Senior Electronic and Automation Engineer with over 30 years of experience in the field of process automation automotive, pharmaceutical, hollow glass, steel and rolling.

Ask nikismith   

Rank: 257

I have been a part of the Recording & Control Factory team for 17 years in total, having spent a number of years as a repairs technician withi the manufacturing department, but being in my current role for 9 years now.

Ask Rob Lyon   

Rank: 2 I'm an independent DCS software and commissioning engineer with extensive experience in 800xA and other ABB products. I've worked in almost every corner of the world and still haven't seen it all.

Ask Ronny Lindström   

Rank: 17

ABB Service Engineer

Ask Harsha.D   

Rank: 7

Tech.Support,software and commisioning engineer with Proficient knowledge in 800xA and its products, RNRP,Networking in general.

Ask Sumit Gargav   

Rank: 3

I have worked with Freelance in majority, with 800xA FD and Melody system partly. Also had opportunity to work with Protocols - HART,Profibus,FF & Modbus.

Ask Stefan Stromqvist   

Rank: 1

I joined ABB in the year of 1994 and has since 1999 been working as a Service & Support Engineer at BU Control Technologies in Västerås, Sweden. My areas of expertise are: 800xA Base, 800xA for Advant Master, Information Management, operating systems, RNRP and Ethernet comms/networking in general.

Ask WvanWees   

Rank: 6

I'm a senior service engineer working for ABB in The Netherlands.

Ask MMM   

Rank: 5

ABB PA CT Technical Support

Ask kstoilov   

Rank: 9

Control System Engineer: 800xA, Compact 800, AC500, AC31-50, Advant Master, Simatic, AC&DC Drives 11 years worked for ABB - Control Systems