Product Introduction

Model Explanation

• 1SAP170700R0001: Full ABB part number.

• CM577‑ETH: Communication Module, Ethernet with integrated switch.

• 170700: CM577 base platform for Ethernet; R0001: hardware revision.

• ETH: Denotes Ethernet functionality, distinguishing it from CM572 (PROFIBUS DP), CM574 (serial/RCOM), and CM575 (DeviceNet) modules.

Technical Parameters

• Power Supply: 24 V DC (±20%), powered via PLC backplane.

• Power Consumption: Typical 2.5 W, max 3.0 W.

• Ports: 2 × RJ45, 10/100 Mbps auto‑sensing, integrated switch.

• Protocols: TCP/IP, UDP, Modbus TCP, IEC 60870‑5‑104.

• Isolation: 1500 V AC galvanic isolation between Ethernet and PLC bus.

• Operating Temperature: −20 °C to +60 °C; storage −40 °C to +85 °C.

• Protection Class: IP20; certifications: CE, cULus, RoHS.

• Dimensions: 135 × 28 × 62 mm (H × W × D); weight ~0.12 kg.

• LEDs: 5 (PWR, RUN, LINK/ACT for each port, ERR).

• Max Altitude: 2000 m.

Interface & Communication Configuration

• Dual‑Port Switch: Two isolated RJ45 ports allow linear/ring topologies and daisy‑chaining to save switches.

• PLC Bus Connection: Direct FBP bus interface for high‑speed internal data exchange.

• Isolation Design: 1500 V AC isolation protects PLC from network noise and surges.

• Software Configuration: Set IP, subnet, gateway, and protocol parameters via ABB Automation Builder; support for Modbus TCP master/slave and IEC 60870‑5‑104 server/client.

• Diagnostics: LED status and system diagnostics for link, activity, and error monitoring.

Core Functions

• High‑Speed Ethernet: 10/100 Mbps communication for real‑time control and data exchange.

• Integrated Switch: Eliminates external switches, enabling cost‑effective network topologies.

• Multi‑Protocol Support: Native Modbus TCP and IEC 60870‑5‑104 for interoperability with third‑party devices.

• Hot‑Swap: Replace module without shutting down the PLC system, minimizing downtime.

• Robust Isolation: Industrial‑grade isolation ensures stability in harsh electromagnetic environments.

Application Scenarios

• Factory automation: Automotive, packaging, and material handling lines using Ethernet for PLC‑to‑HMI, PLC‑to‑drive, and inter‑PLC communication.

• Process industries: Water treatment, chemical, and pharmaceutical plants requiring IEC 60870‑5‑104 for SCADA connectivity.

• Building automation: HVAC and lighting control systems with Modbus TCP devices.

• Machine building: Standard machinery needing cost‑effective Ethernet connectivity with daisy‑chain capability.

• Hybrid networks: Combining with PROFIBUS (CM572) or DeviceNet (CM575) modules for multi‑protocol systems.

Usage & Maintenance Instructions

• Mount on TH35‑15 DIN rail adjacent to AC500 CPU; connect to FBP bus via backplane.

• Wire Ethernet cables to RJ45 ports; use CAT5e/CAT6 cables for 100 Mbps operation.

• Configure IP address, protocols, and I/O mapping in Automation Builder; enable Modbus TCP or IEC 60870‑5‑104 as required.

• Keep environment clean, dry, and ventilated; inspect cables and connectors quarterly for wear or looseness.

• No user‑serviceable parts inside; replace module if LEDs show persistent faults or communication failures occur.