Rslogix 5000 701-8004250B Error controller not coming online

[bharathan 0]

controller is not coming online with rslogix 5000, but i can ping the ip from the pc.

getting the error message says "controller failed to come online - error 701-8004250B"

appreciate ur help.

[Joe E. 251]

AB has a knowledgebase article about that error that requires TechConnect access:

https://rockwellautomation.custhelp.com/app/answers/detail/a_id/727877/page/1

Basically, if your RSLogix 5000 was open while flashing the controller firmware, the path in the software is not correct.  They say to close the software and try again.

 

Another article says to delete the Harmony files (access level: everyone):

https://rockwellautomation.custhelp.com/app/answers/detail/a_id/769010

 

[TP 0]

I have the same issue with CompactlogixL43 VIA  Studio5000; I can ping the controller sucessfully,but Rslinx wasn't showing the controller in RSwho.

Appreciate it if anybody can help me out !

[VFD Guy 12]

Agreed if you can ping and not see in linx, harmony files might be the issue. Delete Harmony or just make a new driver.