File 'plc' cound not be read

I am helping a plant troubleshoot an AC500 plc using ABB Automation Builder. When they connect the laptop to the PLC they get the error message "The last online service has not been executed correctly! Service number 49, Error number: 80 File 'plc' could ot be read."

The laptop is supposed to have a current copy of the program in the PLC and has connected to the PLC in the past. Where can I find some instructions to help me identify these error codes and clear up this error? What does this error mean?

Thanks


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decoy   

asked 2 months ago
Closed



Answers

1

Hi
Could you describe in detail your HW in AC500?

Are you using Eth connection or TK cable with COM port?
Are you using Automation Builder 2.0 or the previous version?

However, generally this error mean that you not have the correct setting of communication between PC and CPU.

Make sure that the cpu and the PC have the same version of Codesys programs, then verify the correct set up of communication parameters.

If you have been verified the last point, you should be able to connect the cpu to the PC without problems.

Hope this help you, let us know about the results

Flavio Mussolin   

answered 2 months ago


 


By Flavio Mussolin on 9/9/2017 | Like (0) | Report

In addition to the previous answer, the error could be appears when you try to download the source program from cpu without the SD card inside the plc and the copy of program is not stored inside the SD card


By decoy on 9/11/2017 | Like (0) | Report

The plant is using an AC 500 with a PM 538 ETH CPU, CM 572 Profibus, DC532's, and AI523's. We connect through Ethernet and are using Automation Builder 1.2. Is there any method to show what version of Codesys was used to program the PLC?

Thanks


By Flavio Mussolin on 9/12/2017 | Like (0) | Report

No, the version of Codesys is strictly connected to the version of Automation Builder and can not be read unless connected to the plc . But the version of Codesys IMHO is not the origin of your issue.
For the correct PC connection to plc, verify that your pc's network adapter and the address of the plc are on the same domain as for example 196.168.0.120 for the PLC and 196.168.0.xxx for the PC.
To see the address of the PLC you can use the IP configuration utility found in the Automation Builder menu> tool


By decoy on 9/14/2017 | Like (0) | Report

I have learned more information. The problem occurred when the plant had the PC connected to the PLC and was forcing some values. The PC locked up and after they rebooted the PC the problem started to occur. The PC appears to connect to the PLC and they can get through the login step. When they try to do anything after the login step is when the error message occurs.


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