Description
ABB PM573-ETH (1SAP130300R0271) – Ethernet CPU for AC500 PLC systems
The ABB PM573-ETH is a mid-range AC500 CPU that brings reliable Ethernet connectivity and multi-protocol communication to machine control and small process automation. From my experience, it fits best when you need solid performance, modular I/O expansion, and straightforward commissioning without overcomplicating the architecture. You might notice that it slots neatly into existing AC500 racks, so scaling from a pilot panel to a full line is typically hassle-free.
Our Company’s Order Placement Process and Guarantees
- Warranty: 365 days
- Delivery: 1 week for in-stock; no more than one month at the latest
- Payment: 50% advance payment; full payment before delivery
- Express options: FedEx, UPS, DHL
- Pre-shipment checks: visual inspection and powering test on request
Key Features
- Onboard 10/100 Ethernet (RJ45) – Typically used for programming, HMI/SCADA access, and Modbus TCP communications; quick to diagnose with built-in diagnostics.
- Multi-port serial communications – RS-232/RS-485 ports for Modbus RTU/ASCII and legacy devices; useful in brownfield upgrades.
- Integrated CAN interface – CAN 2.0B for CANopen networks, which seems to be the preferred choice for many motion and drive add-ons.
- Modular AC500 platform – Expand with S500 I/O and communication modules on the right side; standard 24 V DC system power on the left.
- Industrial temperature range – Designed for typical cabinet environments in harsh plants, especially when paired with proper ventilation.
- Robust diagnostics – Status LEDs and software diagnostics reduce downtime during start-up and service calls.
- Engineering in Automation Builder – IEC 61131-3 programming with ABB Control Builder, easing reuse of existing libraries and standards.
Technical Specifications
| Brand / Model | ABB AC500 PM573-ETH (Order code: 1SAP130300R0271) |
| HS Code | 8537.10 (Programmable control equipment, ≤1000 V) |
| Power Requirements | 24 V DC via AC500 system power supply module (left side) |
| Operating Temperature | Typically -25 °C to +55 °C (cabinet mounting) |
| Dimensions & Weight | Standard AC500 CPU form factor; IP20 module enclosure; DIN-rail footprint |
| Signal I/O Types | No onboard I/O; use S500 digital/analog/relay modules for expansion |
| Communication Interfaces | 1 × 10/100BASE‑T Ethernet (RJ45); 2 × serial (RS‑232/RS‑485); 1 × CAN 2.0B (CANopen) |
| Programming Environment | ABB Automation Builder / Control Builder (IEC 61131‑3) |
| Installation Method | 35 mm DIN-rail; left: system power; right: I/O and communication modules; proper end‑clamping recommended |
Application Fields
The PM573-ETH works well in compact to mid-size systems where Ethernet connectivity and multiple serial links are needed side‑by‑side. In many cases it’s chosen to modernize existing panels while keeping legacy devices online.
- Machinery and OEM skids: packaging, woodworking, textile, and metal forming lines
- Water & wastewater: pump stations, filter skids, and small treatment units
- HVAC & utilities: energy centers, AHU control, and boiler sequences
- Material handling: conveyors, sorters, and small AS/RS cells
- Process islands: dosing, batching, and CIP skids that rely on Modbus and CANopen
Advantages & Value
- Reliability – Stable CPU behavior and clear diagnostics reduce commissioning time and service calls.
- Compatibility – Works with ABB S500 I/O and common protocols like Modbus TCP/RTU and CANopen, easing retrofit projects.
- Cost efficiency – Onboard Ethernet and serial ports often eliminate extra comm modules, saving slots and budget.
- Lifecycle support – ABB’s AC500 platform has long-term availability and firmware support, which usually simplifies spares management.
- Serviceability – Front-access connectors and standard DIN-rail mounting speed up panel work.
“We swapped an older CPU for the PM573-ETH and kept our Modbus RTU drives while adding an Ethernet HMI. Downtime was under half a day and diagnostics are much clearer now.” — Maintenance Lead, packaging OEM
Installation & Maintenance
- Cabinet & mounting – Install on a 35 mm DIN-rail inside an IP-rated enclosure. Leave adequate clearance for ventilation and cabling. End clamps recommended.
- Power & grounding – Feed 24 V DC via the AC500 system power supply. Use clean DC and proper panel grounding to limit noise on serial/CAN lines.
- Network wiring – Use industrial-grade Cat5e/6 for Ethernet; shielded twisted pair for RS‑485 and CAN with correct termination and biasing.
- Environment – Keep within the specified operating temperature. Avoid condensation; add cabinet heating or cooling where necessary.
- Routine checks – Periodically inspect connectors, clean dust, and review diagnostic/alarm logs. Schedule firmware updates during planned downtime.
- Safety – De-energize before wiring, respect EMC separation for signal and power, and follow lockout/tagout on live systems.
Quality & Certifications
- Conformity: CE (EN 61131‑2), RoHS compliant; typically cULus listed
- Manufacturer quality system: ISO 9001
- Warranty: 12 months (365 days) from shipment
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