ABB CM597-ETH – Ethernet Communication Module for AC500 PLC Systems

The ABB CM597-ETH is an Ethernet communication module typically used with the ABB AC500 family. From my experience, it’s the straightforward way to add a robust 10/100 Mbps Ethernet port to a PM59x-based controller without touching the core I/O layout. You might notice that it’s especially handy when you need a clean network separation for HMI/SCADA, remote diagnostics, or simple Modbus/TCP connectivity to third‑party devices. It seems to be the “fit-and-forget” option: low configuration overhead, reliable link, and solid diagnostics via status LEDs.

Order Placement Process and Guarantees

• Warranty: 365 days
• Lead time: 1 week if in stock; no more than one month at the latest
• Payment terms: 50% advance payment; full payment before delivery
• Express options: FedEx, UPS, DHL

Key Features

• Ethernet 10/100BASE‑TX connectivity – RJ45 copper interface for plant networks and HMIs, typically auto‑negotiating 10/100 Mbps.
• Modbus/TCP and standard TCP/IP services – In many cases used for quick PLC–SCADA integration and device‑level interoperability.
• Backplane‑powered on AC500 – No external PSU; installs next to the CPU to keep wiring clean and cabinet layouts compact.
• Diagnostics LEDs – Link, activity, and module status indicators to cut troubleshooting time on site.
• Industrial temperature range – Designed for typical control cabinets in machinery and process environments.
• Automation Builder friendly – Parameterization and project handling align with ABB’s AC500 engineering workflow.

Technical Specifications

Application Fields

Typical deployments include OEM machinery, packaging lines, water & wastewater skids, small process cells, and building utilities where a single Ethernet channel is enough for SCADA/HMI access and remote service. One thing I appreciate is how quickly technicians can bring a CM597-ETH online to read/write Modbus points from energy meters, drives, or third‑party gateways—no major architecture changes needed.

A customer in food processing recently used this module to segment maintenance access from the main plant network—keeping the CPU resources free while still giving engineering a clean diagnostic path.

Advantages & Value

• Compatibility – Designed for ABB AC500; reduces integration risk and speeds commissioning.
• Cost control – Adds Ethernet without upgrading the CPU or reworking I/O, which in many cases lowers total project cost.
• Serviceability – LED diagnostics and familiar tooling minimize on‑site downtime during changes or expansions.
• Scalability – A simple way to separate machine, SCADA, and maintenance traffic as networks grow.
• Supply assurance – Industrial‑grade build and stable lifecycle typical of ABB’s AC500 ecosystem.

Installation & Maintenance

• Cabinet & mounting – Mount on DIN‑rail inside an IP‑rated cabinet; allow ventilation space around the module.
• Wiring – Use industrial Ethernet (Cat5e/Cat6) with proper shielding/grounding; avoid sharp cable bends and high‑noise routes.
• Power – Module is backplane‑powered; verify the AC500 base has adequate power budget for all expansions.
• Safety – De‑energize the cabinet before inserting/removing modules; follow ESD handling procedures.
• Routine care – Periodically check connectors, clean dust with dry air, and keep firmware aligned with the AC500 project version to maintain stability.
• Network hygiene – Assign fixed IPs or managed DHCP reservations; document Modbus/TCP registers and firewall rules for maintenance teams.

Quality & Certifications

• Conformity: CE, RoHS; designed for industrial EMC. cULus compliance is typical within the AC500 line.
• Manufacturing: Built under ISO 9001 quality systems.
• Warranty: 12 months (365 days) from shipment.