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What does my Unity Hot Standby replacement CPU go into EC02 error when the Primary pushes a program to it?

Published date: 04 October 2019

Issue
Replacing a CPU in an existing Hot Standby application where the Primary is up and running healthy. Once the new Standby is powered up it goes into EC02 as soon as the application transfer from Primary to Standby is initiated. 

Product line
Unity Pro, Control Expert, Unity Quantum

Resolution
If the Primary CPU has a PCMCIA card installed and the replacement CPU does not have one, this will happen. If the Primary has a PCMCIA card the Standby needs on as well.

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