Product Short Description
The PM665 is the high-end CPU for ABB’s AC 800M family, delivering deterministic real-time control and communication in one compact, rail-mounted unit.
Technical specifications
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Processor: Power-PC based, multi-core 1 GHz class with floating-point unit
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Memory: 512 MB DDR3 RAM, 256 MB Flash (expandable)
Description
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Communication
– 1 × 10/100/1000 Mbit/s RJ45 Ethernet (PROFINET, Modbus TCP, OPC UA)
– 1 × RS-232/RS-485 serial
– Optional PROFIBUS DP master/slave or CANopen -
Power supply: 24 V DC (±15 %), redundant input supported
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Power consumption: ≤ 10 W (base unit)
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Operating temperature: –20 °C to +60 °C (horizontal), –20 °C to +50 °C (vertical)
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Storage temperature: –40 °C to +85 °C
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Protection class: IP20
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Dimensions: 150 mm (W) × 100 mm (H) × 150 mm (D)
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Weight: 0.5 kg
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Safety: IEC 61508 / ISO 13849 capable (with safety I/O)
Key features
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Redundancy voter for hot-standby CPU pairs
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Real-time operating system with micro-second task jitter
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Online diagnostics and remote firmware upgrade via Control Builder M
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IEC 61131-3 programming (LD, ST, FBD, SFC)
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Battery-backed real-time clock (±50 ppm @ 25 °C)
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Vibration & shock resistance per IEC 60068-2
Application areas
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Process: reactor control, distillation, compressor monitoring in chemical, oil & gas plants
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Power: steam-turbine DCS, boiler automation, grid relay protection
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Renewable: solar inverter and wind-turbine control, remote diagnostics
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Metals & mining: rolling-mill synchronisation, conveyor control, vibration monitoring
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Discrete manufacturing: packaging lines, robotic cells, IIoT edge control
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