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PM554ETH Firmware update problem!
Upgraded the firmware of an PM554ETH from 2.x to 2.4.4, because after building the project with Automation Builder 1.1 the onboard IO's were not working and the PLC displayed an error. Automation Builder lists the AC500-eco firmware as 2.4.1 but no such download could be found. So I got the 2.4.4 version.
But after upgrading the AC500-eco to firmware 2.4.4 the PLC is stoned - no login is possible - neither Ethernet nor COM1!
The IP-configuration tool from Automation Builder "sees" the PLC with correct IP parameters.
Is there a way out, can I downgrade to the old version or shall I order a new PLC?
Thnx in advance!
