Technical Specifications

• Part Number: 51304501‑100 (51304501100)

• Module Type: PMM Redundancy Driver (PMM‑RDC)

• Controller Compatibility: PM (Process Manager), APM (Advanced Process Manager)

• Redundancy Mode: 1:1 primary/backup controller failover

• Operating Voltage: 5 VDC ±5% (backplane‑powered)

• Power Consumption: ~12 W

• Operating Temperature: 0°C to +60°C

• Storage Temperature: -40°C to +85°C

• Humidity: 5%–95% RH, non‑condensing

• Dimensions (H×W×D): 233 × 120 × 25 mm (APM/PM slot form factor)

• Weight: ~0.61 kg

• Certifications: UL‑listed, CE‑compliant, CSA‑certified

• Coating: Non‑conformal coated (standard)

• Revisions: Common Rev B

Interface & Communication Configuration

• Controller Interface: APM/PM backplane (dedicated redundancy slot)

• Redundancy Bus: High‑speed inter‑controller link (failover signaling)

• UCN Interface: Synchronizes UCN modem status (51304493 series)

• Diagnostics: On‑board LEDs for primary/backup status, fault, and sync; controller bus diagnostics

• Failover Trigger: Automatic (fault detection) or manual (operator command)

• Hot Swap: Yes (replace without system shutdown)

Core Functions

1. Controller Redundancy Management: Monitors primary PM/APM health; triggers bumpless failover to backup in <500 ms.

2. UCN Network Sync: Coordinates redundant UCN modems (51304493‑200/250) for seamless network switchover.

3. Fault Detection & Reporting: Identifies controller hardware/software faults, UCN link errors, and sync loss; sends alarms to system.

4. State Synchronization: Maintains real‑time data/control state between primary and backup controllers.

5. Manual Override: Allows operator‑initiated failover for maintenance or testing.

Application Scenarios

• TDC3000/TPS DCS: Critical redundancy component for PM/APM controllers in process industries.

• High‑Availability Control: Chemical, petrochemical, power, pulp & paper (100% uptime required).

• ESD & Safety Systems: Emergency shutdown loops needing instant, reliable failover.

• Legacy System Maintenance: Replacement for aging PMM‑RDC modules in operational TDC3000 plants.

• Redundant UCN Networks: Works with 51304493 series modems for end‑to‑end redundancy.

Compatibility Note

• System Compatibility: Honeywell TDC3000/TPS (PM/APM controller redundancy slot only).

• Modem Compatibility: 51304493‑200 (standard) / 51304493‑250 (conformal coated) UCN modems.

• Replacement: Direct replacement for 51304501‑000 series (check revision compatibility).