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Replacing A Redundant Or Secondary - Honeywell Experion PKS User Manual

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12 PROFIBUS GATEWAY MODULE (PGM) MAINTENANCE
12.3 Replacing a redundant or secondary PGM
This procedure can be performed while on-process only if the module to be replaced is in the secondary role.
Perform the following steps to replace a redundant or secondary PGM
1
In Control Builder, double-click the primary PGM and navigate to the Redundancy tab.
2
Click Disable Synchronization to set the Auto Synchronization State parameter to "Disabled."
3
Loosen screws at each side of the module cover that secures the PGM to the IOTA board.
Loosen the plastic screw on the front of the PGM cover. Be careful not to strip the plastic screw head.
4
Carefully remove the PGM from the IOTA board and connector.
5
Insert the new PGM onto IOTA board making sure that the PGM circuit board mates properly with the IOTA
6
board connector.
7
Secure the PGM to the IOTA board with two screws located at each side of the plastic cover.
Using a #2 Phillips screwdriver, tighten the plastic screw on the front of the module cover. Be careful not to
8
strip the plastic screw head.
9
Load the same version of the firmware which was running in the old PGM.
The new PGM boots up to ALIVE or BKUP. If the application image does not match the primary PGM, it is
not be synchronized.
10
Click the Redundancy tab from either the primary or secondary PGM.
Click Enable Synchronization to initiate synchronization and allow auto-synchronization.
11
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CAUTION
We recommend that you proceed with extreme caution whenever replacing any component in a control system. Be
sure the system is offline or in a safe operating mode.
Component replacements may also require corresponding changes in the control strategy configuration through
Control Builder, as well as downloading appropriate data to the replaced component.

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