Description

HONEYWELL CC-SCMB02 | Honeywell C300 Control System Spare

2. At-A-Glance Executive Brief

Model: HONEYWELL CC-SCMB02
Part Number: 51199932-200
Series: Honeywell Experion PKS Series C / C300 Controller Family
Part Type: C300 Memory Backup Assembly
Core Function: Provides backup power and memory retention support for Honeywell C300 controller data during power interruption events.
Key Specifications:
- Designed for Honeywell C300 process control hardware.
- Supports controller memory retention functions.
- Battery-backed backup assembly design.
- Used in continuous process automation systems where controller data preservation is required.
- Typical spare inventory item for Experion PKS installations.

3. Product Introduction

Inside a Honeywell Experion PKS cabinet, the CC-SCMB02 Memory Backup Assembly supports the C300 controller by maintaining retained memory data during power interruptions. A depleted backup assembly can result in loss of retained parameters, controller restart issues, or extended recovery procedures after a shutdown event. In field deployments, technicians check battery condition, controller diagnostics, and backup status before replacing the assembly (the backup unit is often overlooked during routine maintenance).

The CC-SCMB02 is a dedicated memory backup accessory for Honeywell C300 control systems. It is identified as a C300 Memory Backup Assembly with part number 51199932-200 and is designed to preserve critical controller information during power loss conditions. This hardware is normally maintained as a preventive maintenance spare rather than a frequently exchanged operating module.

4. Core Technical Specifications

Parameter	Value
Manufacturer	Honeywell
Model Number	CC-SCMB02
Part Number	51199932-200
Product Type	C300 Memory Backup Assembly
System Platform	Honeywell Experion PKS C300
Function	Controller memory backup and retention
Backup Method	Battery-supported memory retention
Battery Capacity	Approx. 2.0 Ah
Charge Time	Approx. 8 hours
Operating Voltage	Approx. 220 V (supplier-listed specification; verify installation requirement)
Input Current	Approx. 0.5 A
Output Current	Approx. 0.5 A
Dimensions	Approx. 100 × 80 × 40 mm
Weight	Approx. 0.5 kg
Operating Temperature	Approx. -20°C to +50°C
Certifications	CE / UL / CSA (verify specific lot certification)

HONEYWELL CC-SCMB02

5. Application Scenarios & Pain Points

At refinery and petrochemical facilities, the CC-SCMB02 protects retained controller information where unexpected data loss can extend recovery time after electrical interruptions.

For chemical processing plants operating 24/7, maintaining healthy backup assemblies helps avoid controller restoration delays after maintenance shutdowns.

During Experion PKS lifecycle support projects, spare backup assemblies allow engineers to maintain older C300 installations without unnecessary cabinet modifications.

Inside power generation control rooms, memory retention hardware supports reliable restart procedures after auxiliary power events.

Without a functioning backup assembly, a controller may restart without required retained information, increasing commissioning effort.

6. Common Error Codes & Diagnostic Symptoms

Symptom/Code: Controller Backup Battery Low Alarm
→ Diagnosis: Backup battery capacity has degraded after extended service life.
→ Action: Replace the CC-SCMB02 memory backup assembly.

Symptom/Code: Retained Data Lost After Power Cycle
→ Diagnosis: Backup circuit failure or depleted battery preventing memory preservation.
→ Action: Verify backup assembly condition and replace if required.

Symptom/Code: C300 Maintenance Diagnostic Warning
→ Diagnosis: Controller detects abnormal backup status or memory retention issue.
→ Action: Inspect backup hardware and install a verified replacement.

7. Cross-Reference & Lifecycle Migration

Compatible Platform:
- Honeywell Experion PKS C300 controller systems.
Related Identification:
- CC-SCMB02
- 51199932-200
Replacement Considerations:
- Confirm controller model.
- Verify backup assembly revision.
- Check installation documentation.
- Confirm battery condition before commissioning.
Firmware Requirement:
The CC-SCMB02 does not normally contain controller application firmware. It functions as a hardware backup assembly; controller software remains stored within the C300 control environment.
Lifecycle Status: Legacy / Controlled Spare.
- Keep replacement units available for installed C300 systems.
- Track installation date because battery-supported hardware has a limited service life.

8. Field Engineer’s Tech Notes (Anti-Pitfall Guide)

Do not store backup assemblies indefinitely without inspection.
Battery-supported hardware ages even when unused. Record storage dates and inspect condition before installation.
Replace according to preventive maintenance planning, not only after alarms appear.
A failed backup unit may only become visible during an unexpected power interruption.
Avoid exposing the assembly to high humidity storage.
Moisture can degrade battery contacts and internal electronic connections.

9. Strict QA & Testing SOP

Step 1 — Incoming Inspection

Verify Honeywell label and CC-SCMB02 identification.
Confirm part number 51199932-200.
Record serial number and manufacturing information.
Photograph housing condition.

Step 2 — Physical Examination

Inspect enclosure.
Check connector condition.
Verify battery compartment condition.
Look for leakage or corrosion.

Step 3 — Electrical Inspection

Verify backup voltage.
Check battery condition.
Confirm charging characteristics.

Step 4 — Functional Testing

Connect to compatible Honeywell C300 test environment.
Verify backup recognition.
Confirm retention function during controlled power interruption testing.

Step 5 — Packaging Control

Use protective ESD packaging.
Prevent connector damage.
Include inspection records.

Test videos are available for verification procedures when required.

10. Buyer’s FAQ (Dynamic Q&A)

Q: Can the Honeywell CC-SCMB02 be replaced while the C300 controller is operating?

A: Replacement procedures depend on the installed Experion PKS configuration and site maintenance rules. Follow approved Honeywell procedures before removing controller backup hardware.

Q: How can I verify an original CC-SCMB02 module?

A: Confirm Honeywell markings, model number, part number 51199932-200, physical condition, battery information, and inspection documentation.

Q: Does the CC-SCMB02 contain the C300 control program?

A: No. The assembly supports memory retention only. Controller applications and configuration data remain within the Experion PKS engineering environment.

Q: What should be checked before purchasing this spare?

A: Verify C300 controller compatibility, part number, battery condition, storage history, test status, and warranty terms.

Procurement Note: The Honeywell CC-SCMB02 (51199932-200) should be managed as a critical controller support spare. Store it with maintenance records, installation history, and battery inspection data to prevent unexpected controller recovery delays.