ABB – CM578‑CN – CANopen Master Communication Module, AC500 PLC 1SAP170800R0001

The ABB CM578‑CN (P/N 1SAP170800R0001) is a CANopen master communication module for the AC500 and S500 PLC families. It plugs into the CPU rack (using the five-pole COMBICON spring terminal) and enables robust CANopen networking at speeds up to 1 Mbit/s. Perfect for master–slave architectures in automation systems, it delivers modular, fieldbus-grade connectivity in a compact design.

Key Features:

• Model / Part No.: CM578‑CN – 1SAP 170 800 R0001  

• Fieldbus Protocol: CANopen Master, supporting 10 kbit/s to 1 Mbit/s  

• Mounting: Front plug-in via 5‑pole spring terminal on AC500 CPU rack  

• Power & Consumption: Powered from 24 V DC rack; draws ~50 mA from power rail and ~290 mA via CPU bus  

• Memory & Processor: 256 kByte internal RAM, 512 kByte external Flash firmware, EC1 160-pin processor core  

• Physical Specs: 62 × 28 × 135 mm, ~150 g; IP20 enclosure  

• Environmental Ratings:

  • Operating: 0 °C to 60 °C (horizontal) / 0 °C to 40 °C (vertical)

  • Storage: –40 °C to +70 °C; 95% RH non-condensing; 800–2000 m altitude