Honeywell CC-SCMB05 51308658-276 Experion PKS Series C Memory Backup Module

The Honeywell CC-SCMB05, also cataloged as the CC-SCMB05 (Part Number: 51308658-276) Memory Backup Module, operates as a dedicated hardware component for continuous RAM retention during system power interruption within Experion PKS C300 controller assemblies.

Hardware Specifications

Channel-to-Channel Isolation & Cold Junction Compensation (CJC) Voltage Stability

The CC-SCMB05 module provides dedicated auxiliary power rails to sustain volatile memory execution states on the C300 processor during primary 24 VDC bus failures. Isolated energy storage elements eliminate common-mode ground currents from leaking into adjacent control processing channels. By maintaining stable voltage delivery to non-volatile controller registers, the unit prevents corrupt signal transitions from affecting 4-20 mA HART loop protocol parameters and cold junction compensation (CJC) reference values stored in active system RAM during ungraceful shutdowns.

Frequently Asked Questions

Q: Can the CC-SCMB05 module be replaced while the controller cabinet power remains energized?

A: Yes, the module supports online insertion and removal (hot-swap) on the Series C carrier, provided the main power supply bus remains stable during the procedure.

Q: What is the primary function of the CC-SCMB05 in an Experion PKS Series C rack?

A: It provides short-term electrical energy storage to lock state execution memory and prevent database corruption when main input power drops below threshold levels.

Q: Does replacing the CC-SCMB05 require software re-flashing or firmware re-configuration?

A: No, the module operates as a hardware energy storage component and requires no software parameter downloading or firmware flashes.

Field Installation Guidelines

1. Align the CC-SCMB05 module housing with the designated expansion slot on the Series C controller backplane carrier.
2. Slide the unit firmly into the guide tracks until the multi-pin backplane connector seats completely.
3. Tighten the mechanical retaining screws to ensure proper grounding contact with the cabinet DIN rail frame.
4. Allow the auxiliary bus to trickle charge for the standard initial charge duration prior to relying on backup holding capacity.