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The ABB PM902F (Order No.: 3BDH001000R0001) is a high-performance redundant CPU module for ABB Advant OCS systems, designed for safety-critical industrial control applications, featuring dual-core processing, hot-swappable capability, and seamless redundancy switching to ensure uninterrupted operation.
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Description
| Parameter | Details |
|---|---|
| Model | PM902F (Order No.: 3BDH001000R0001) |
| Manufacturer | ABB |
| Product Type | Redundant CPU Module (for Advant OCS Industrial Control System) |
| Core Functions | Redundant control logic execution; real-time data processing; hot-swappable maintenance support; automatic redundancy switching (≤ 100 ms); system diagnostics & fault recovery |
| Processor | Dual-core industrial-grade CPU (800 MHz, optimized for redundant control) |
| Memory | 512 MB DDR3 RAM; 256 MB Flash memory (for program storage); 3.6 V lithium backup battery (5-year lifespan) |
| Communication Interfaces | 2×Ethernet (10/100 Mbps, RJ45; supports Modbus TCP); 1×RS-485 (Modbus RTU); 1×Advant bus (for OCS system integration) |
| Redundancy Type | 1:1 hot standby redundancy; automatic synchronization between master and slave units |
| Supported Programming Languages | Function Block Diagram (FBD), Structured Text (ST), Sequential Function Chart (SFC) |
| Maximum I/O Capacity | Up to 8192 digital I/O points; up to 2048 analog I/O points (via Advant OCS I/O modules) |
| Power Supply | 24 V DC ±10% (redundant power input supported) |
| Power Consumption | 12 W typical (single unit); 22 W max (dual redundant units) |
| Operating Temperature Range | -20°C to +60°C |
| Storage Temperature Range | -40°C to +85°C |
| Relative Humidity | 5% – 95% RH (non-condensing) |
| Protection Rating | IP20 (module body; requires installation in NEMA 1/12/4 enclosures) |
| Dimensions (W × H × D) | 160 mm × 220 mm × 80 mm |
| Weight | 1.8 kg (single unit) |
| Mounting Type | Rack-mounted (Advant OCS standard 19-inch chassis, 3U height) |
| Certifications | CE, UL, CSA, IEC 61508 (SIL 2 for safety-related functions) |
| Key Features | LED status indicators (power, run, redundancy mode, fault); built-in self-test (BIST) function; cyber security locks for parameter protection; compatibility with ABB Control Builder Advant |
| System Compatibility | ABB Advant OCS I/O modules; Advant Station HMI; third-party SCADA via Modbus; safety instrumented systems (SIS) |
| Applications | Safety-critical process control (oil & gas, chemical); power plant auxiliary systems; water/wastewater treatment (critical pumps); industrial boiler control |
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About brand
AC 800M is a family of rail-mounted modules, consisting of CPUs, communication modules, power supply modules and various accessories. There are several CPU modules to choose from, ranging from single units with medium processing power and memory to fully redundant units with high processing power.
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