Rockwell Automation T8310 Trusted Expander Processor - Manual (Page 12)

Trusted
TM
Module T8310
Issue 12 Dec 06 PD-T8310 12
In Hot-standby configurations, with both Expander Processor Modules installed, the faulted module
may be either the active or the standby module. In most cases the system will automatically switch to
the healthiest module, therefore only the standby module will require replacement. To replace the
active module follow the steps described above. To replace the standby module:
1. Release both the top and bottom ejectors tabs on the standby module using the ejector
release tool.
2. Ensure that the other module is indicating the active mode of operation.
3. Remove the standby module.
In Hot-standby configurations, the replacement module should then be installed in the position where
the previous module was removed. This module will become the standby module.
2.3. Expander Bus Connection
Further details of the Expander Bus cable assembly are provided in the associated Product Description
PD-TC300.
2.3.1. Cable Assembly Replacement
It is not intended that the cable should need replacement, however this may be achieved by
replacement of the complete cable assembly that requires that the system be shutdown. To remove a
cable:
1. Ensure that the correct chassis and slot positions are selected.
2. Ensure the associated chassis slots are not occupied by modules.
3. Press in the hood release button and slide the hood downwards.
4. Remove the hood from the chassis slot by sliding down and rearward.
To insert a new or replacement cable:
1. Ensure that the correct chassis and slot positions are selected.
2. Ensure that the associated chassis slots are not occupied by modules.
3. Present the connector to the chassis backplate slot, taking care to align the lugs of the
connector with the cut-outs of the slot.
4. Push the connector hood in and upwards into the slot until the latch engages with the
backplate lip.
5. Ensure that the connector hood is secure in its position.
Where it is critical to maintain system operation additional chassis may be installed and on-line
operation maintained by transferred control to modules within that chassis using the I/O modules
SmartSlot capability.