ABB PM564-RP-ETH-AC Migration-Ready CPU for Legacy Systems

Overview

ABB PM564-RP-ETH-AC Migration-Ready CPU for Legacy Control Systems

The ABB PM564-RP-ETH-AC (part number 1SAP121100R0071) is a migration-ready central processing unit designed for the AC500 programmable logic controller platform. As legacy control systems approach end-of-life and original spare parts become increasingly difficult to source, the PM564-RP-ETH-AC provides a reliable, drop-in compatible upgrade path for facilities operating aging AC500 installations. With integrated Ethernet connectivity, onboard SD card support, and full compatibility with the AC500 V2 and V3 firmware ecosystem, this CPU module enables engineers to extend the operational life of existing control cabinets without requiring a full system redesign.

Whether you are replacing a failed PM554-RP or PM564-ETH unit, upgrading communication infrastructure from serial to Ethernet-based protocols, or consolidating I/O across a distributed control architecture, the PM564-RP-ETH-AC delivers the processing headroom and connectivity options required for modern industrial environments. Each unit is pre-shipment tested, supplied with a support terms confirmed by quotation, and dispatched from multi-region stock to minimize lead times for emergency replacement scenarios.

Migration Compatibility Table

Retrofit Planning for Existing Automation Systems

Successful integration of the PM564-RP-ETH-AC into an existing AC500 control cabinet begins with a thorough audit of the current hardware configuration. Engineers should document the installed backplane — typically a TB521-ETH or TB541-ETH terminal base — and confirm that the power supply module, such as the CP502 or CP503, can sustain the additional current draw introduced by the upgraded CPU and any newly added communication modules. The PM564-RP-ETH-AC’s dual Ethernet ports allow simultaneous connection to a plant-level SCADA network and a local HMI panel, eliminating the need for a separate CM589-PNIO communication module in many standard topologies.

For installations that rely on distributed I/O expansion, the existing SM560-S or DA501 analog input modules mounted on adjacent backplane slots remain fully compatible and do not require replacement during the CPU upgrade. However, if the legacy system used a CM572-DP PROFIBUS master module for field device communication, engineers should verify that the PROFIBUS GSD files and device addresses are correctly re-imported into the Automation Builder project after migration. Similarly, any CP600 series HMI panels connected via serial link should be reconfigured to use the Ethernet port on the PM564-RP-ETH-AC to take advantage of faster data refresh rates and simplified network topology.

Terminal wiring on the TB521 or TB541 base does not change during a CPU swap, which significantly reduces rewiring time and the risk of field wiring errors. Engineers should photograph or export the existing I/O configuration before removal and use the Automation Builder migration wizard to convert CoDeSys 2.3 projects to the 3.5 runtime environment. Program variable names, function block libraries, and POU structures are preserved during conversion, though any deprecated library calls must be manually updated before the first online test.

Downtime Control During System Migration

Minimizing unplanned downtime is the primary concern during any CPU replacement on a live production line. The recommended approach is to perform the PM564-RP-ETH-AC swap during a scheduled maintenance window, with the converted Automation Builder project pre-loaded onto an SD card and verified offline on a bench test rig before the maintenance window begins. This allows the field commissioning team to focus on hardware installation, node address verification, and communication link confirmation rather than program debugging under production pressure.

Before powering down the control cabinet, engineers should capture a full online backup of the running program from the legacy CPU using the Automation Builder upload function. All current process values, setpoints, and retentive variable states should be documented so that the system can be returned to its pre-migration operating state if an unexpected issue arises. Once the PM564-RP-ETH-AC is installed and powered, the Ethernet link to the SCADA or DCS host should be confirmed before releasing the system to automatic mode, ensuring that all supervisory control signals and alarm acknowledgements are functioning correctly across the updated communication path.

For facilities that cannot tolerate extended downtime, a parallel commissioning strategy is recommended: install the new CPU in a spare backplane slot or test cabinet, validate the full program cycle offline, and then perform a hot-swap during the shortest available process break. Each PM564-RP-ETH-AC unit supplied by KNMKS is pre-shipment tested under load conditions and ships with a detailed test report, reducing the risk of infant failure during the critical first hours of operation. The support terms confirmed by quotation cover both the CPU module and its onboard communication interfaces, providing assurance throughout the post-migration stabilization period.

Retrofit Support FAQ

Q1: Is the PM564-RP-ETH-AC a direct replacement for the PM554-RP?
Yes. The PM564-RP-ETH-AC installs into the same CPU slot on the TB521 or TB541 terminal base and uses the same backplane bus interface. The primary differences are expanded memory, dual Ethernet ports, and the requirement to migrate the project from CoDeSys 2.3 to 3.5 using the Automation Builder migration tool. No mechanical modifications to the control cabinet are required.

Q2: Will my existing I/O modules and wiring remain compatible after the CPU upgrade?
Yes. All AC500-compatible digital and analog I/O modules — including SM560-S, DA501, and DC532 variants — remain fully compatible with the PM564-RP-ETH-AC. Terminal wiring on the TB521/TB541 base is unchanged. Module addresses must be re-verified in the Automation Builder hardware configuration after the CPU swap.

Q3: What pre-shipment testing is performed on each unit?
Every PM564-RP-ETH-AC unit supplied by KNMKS undergoes functional power-on testing, Ethernet port verification, firmware version confirmation, and a full I/O bus communication check before dispatch. A test report is included with each shipment. Units are supplied with a support terms confirmed by quotation covering manufacturing defects and communication interface failures.

Q4: What is the typical lead time and do you hold stock for emergency orders?
KNMKS maintains multi-region inventory of the PM564-RP-ETH-AC to support emergency replacement requirements. Standard orders are dispatched within 1–3 business days. Express dispatch options are available for critical production downtime situations. Contact [email protected] or call +86 18359268345 to confirm current stock availability and lead time for your region.

© 2026 KNMKS. All rights reserved.
Original Source: https://knmks.com
Contact: [email protected] | +86 18359268345

Product Identification

Brand / Ecosystem

ABB
ABB

Model / Series

PM564-RP-ETH-AC 1SAP121100R0071
AC500 Series

Product Family

PLCs & Controllers

Availability Status

Available on request after model and quantity confirmation

Inquiry Type

B2B RFQ, replacement inquiry and project spare-part request

Pre-Quote Check

Exact SKU, brand, series, quantity, nameplate photos and destination country are checked before quotation

Specification & Inquiry Focus

Control platform

PLC, PAC and modular controllers

Common needs

CPU, rack, power and I/O expansion

Project support

Replacement, cabinet build and maintenance

Inquiry Support

• Model cross-checking before quotation
• CPU, power, rack and expansion module matching
• Support for replacement and project inquiry

What to Send Us

• Brand and exact model number: ABB PM564-RP-ETH-AC 1SAP121100R0071
• Quantity and required delivery time
• Application, replacement requirement or nameplate photo
• Destination country and shipping preference