PLC5 Flash

Can a PLC5 1785L40B Series 'C' Firmware 'D' be flashed to Firmware E2?

Regards,

ctg

Don't know but here is something to think about.

http://www.plctalk.net/qanda/showthread.php?t=87907&highlight=plc5+firmware

5/40B ser C requires EEPROM chips.
Any upgrade must be done via repair.

The previous user might have attempted to load the incorrect Series firmware into the controllers, damaging them in the process.

This Forum member specifically asked if a PLC-5 Series C Firmware Revision D controller can be "flashed" to Firmware Revision E.2.

The specific answer is no, because there was never a Firmware Revision E.2 for the PLC-5 Series C controllers. There was a Firmware Revision E.2 for the PLC-5 Series D controllers, which are very similar.

The equivalent version for a Series C controller would be firmware revision N.2.

PLC-5 firmware revisions are not as easy as using ControlFlash on modern controllers. Rockwell Automation no longer sells a PLC-5 firmware upgrade kit for field use.

Instead, PLC-5 controllers can be sent through the Rockwell Automation remanufacturing process, during which they will be updated to the newest available firmware for their Series hardware.

For the 1785-L40B Series C controller, that will be firmware version U.2.

That's according to this RA Knowledgebase document describing the PLC-5 firmware revision history:

https://rockwellautomation.custhelp.com/app/answers/detail/a_id/18946


If there is a specific reason you need a firmware revision that is not the current release, you need to arrange that specifically with Rockwell Automation.