Concept Quantum Hot Standby

[GGS]

Hi Members, I am new to MrPLC.com. I am also in the learning stage of building a new Concept Quantum Hot Standby System. I am using the 140CPU43412A along with the 140CHS11000 module to achieve the HotStandby setup. Software Concept V2.6 XL SR6 Just with the help of some manuals, I managed to setup the Controller A as Primary and Controller B as Standby. The System is fine, such that there is Immediate transfer from Standby to Primary. The main problem I am facing now is, After the Switchover, The Controller A must return back to normal state (i.e to CPU RUN mode, and CHS Standby). But this doesnt happen. What could be the possible cause for this. Can anybody guide me on this. Would Appreciate a lot on this help. Thanks,

[koyeap]

try update after switch over by 1) press and hold the update button 2) turn the key to x-ref position 3) release the update button 4) the secondary PLC should by on standby after update the change