ABB PM564-RP-ETH 1SAP121000R0071 Migration-Ready CPU

Overview

ABB PM564-RP-ETH 1SAP121000R0071 Migration-Ready CPU for Legacy Control Systems

The ABB PM564-RP-ETH (1SAP121000R0071) is a high-performance CPU module from the AC500 series, purpose-built for industrial automation environments where legacy system migration, discontinued spare part replacement, and control cabinet modernization are critical operational priorities. Whether you are retiring an aging S500 platform, replacing a failed PM554 or PM583 CPU, or upgrading a multi-rack AC500 installation to support modern Ethernet-based supervisory systems, the PM564-RP-ETH delivers the processing power, communication flexibility, and backward compatibility required to execute a controlled, low-risk migration.

This CPU module supports onboard PROFINET and Modbus TCP/IP via its integrated Ethernet port, enabling direct integration with existing HMI panels, SCADA systems, and engineering workstations without requiring additional communication modules in most retrofit scenarios. Engineers migrating from older AC500 CPUs such as the PM554-T-ETH or PM583-ETH will find that existing IEC 61131-3 programs developed in Automation Builder can be imported with minimal structural modification, significantly reducing re-engineering time and the risk of logic errors during cutover.

Before committing to a retrofit plan, engineers should verify several critical compatibility parameters. Power supply capacity on the existing backplane must be confirmed — the PM564-RP-ETH draws from the TB5xx or TB6xx terminal base, and the installed DC531 or DC532 power supply module must provide sufficient headroom for the CPU plus any co-installed communication or I/O modules. Terminal wiring on the existing base is generally preserved during a CPU swap, but any changes to the I/O module lineup — for example, adding a DC505-FBP PROFIBUS DP master module or an CI502-PNIO PROFINET I/O coupler — will require updated wiring documentation and address mapping verification.

Backplane slot addressing must be reviewed carefully. In multi-rack configurations using the TB5600 or TB5650 expansion backplanes, the PM564-RP-ETH must be assigned the correct CPU slot address to ensure that remote I/O modules on expansion racks are correctly enumerated during startup. Failure to verify slot addressing before power-on is a common source of startup faults in retrofit projects and can extend commissioning time significantly.

Program compatibility should be validated in a staging environment before field deployment. Automation Builder project files from earlier AC500 generations are generally forward-compatible with the PM564-RP-ETH firmware, but library versions, function block dependencies, and hardware configuration files (HWC) must be reviewed and updated to reflect the new CPU type. HMI screens developed for CP600 or CP620 operator panels connected via Modbus TCP/IP typically require only IP address reconfiguration rather than full screen redesign, which is a significant time saving during migration.

Communication link integrity must be confirmed end-to-end. If the existing installation uses a CI501-PNIO or CI504-PNIO PROFINET coupler for distributed I/O, the PM564-RP-ETH’s integrated Ethernet port can serve as the PROFINET controller without requiring a separate communication module, simplifying the cabinet layout and reducing the number of components that must be sourced during the retrofit. For installations still relying on serial Modbus RTU links to legacy field devices, a CM572-DP or CM577-ETHCAT communication module can be added to the same rack to bridge legacy and modern protocols simultaneously.

Installation space confirmation is essential before ordering. The PM564-RP-ETH mounts on a standard TB521 or TB541 terminal base and occupies a single slot on the AC500 backplane. Engineers should measure available DIN rail space in the control cabinet and confirm that the terminal base depth is compatible with the existing cabinet door clearance, particularly in retrofit scenarios where the original cabinet was designed around a narrower S500 module footprint.

Firmware version compatibility should be checked against the installed version of Automation Builder. ABB periodically releases firmware updates for the AC500 CPU family, and certain advanced features — including high-speed counter inputs, motion control function blocks, and OPC UA server functionality — may require a minimum firmware version. KNMKS supplies the PM564-RP-ETH with the latest available production firmware pre-installed and performs a functional power-on test prior to shipment.

All units supplied by KNMKS are covered by a support terms confirmed by quotation against manufacturing defects and are shipped with full documentation including the module datasheet, terminal base wiring diagram, and firmware version record. Stock is maintained for immediate dispatch, supporting urgent breakdown replacement and planned retrofit schedules alike.

Migration Compatibility Table

Retrofit Planning for Existing Automation Systems

A successful retrofit begins with a complete audit of the existing control cabinet. For AC500-based installations, this means documenting every module currently installed on the backplane: the CPU slot, any DC505-FBP PROFIBUS DP master modules, CI502-PNIO or CI504-PNIO PROFINET I/O couplers, DA501 analog signal conditioning modules, and the DC532 power supply module. Each of these components interacts with the PM564-RP-ETH through the backplane bus, and their firmware versions and configuration parameters must be recorded before the CPU is swapped.

For installations that include a CM577-ETHCAT EtherCAT master module or a CM572-DP PROFIBUS DP slave module, the communication configuration stored in the Automation Builder hardware configuration file must be updated to reference the PM564-RP-ETH as the new CPU. This is a straightforward process in Automation Builder but must be completed and downloaded to the CPU before the system is returned to production. Engineers should also verify that any signal isolators or intrinsic safety barriers connected to analog I/O modules are correctly ranged for the new module’s input specifications, particularly if the retrofit involves replacing older DA501 or DA502 analog modules with current-generation equivalents.

For installations where the existing HMI is a CP635 or CP651 touch panel communicating via Ethernet, the panel’s PLC connection settings need only be updated with the new CPU IP address. No screen redesign is required in most cases, which significantly reduces the engineering effort and risk associated with the HMI portion of the retrofit. Programming cables such as the TK501 USB programming cable should be on hand during commissioning to allow direct CPU access independent of the network infrastructure.

Downtime Control During System Migration

Minimizing unplanned downtime is the primary concern in any legacy PLC replacement project. For the PM564-RP-ETH retrofit, the recommended approach is to prepare and validate the complete Automation Builder project — including the updated hardware configuration, all program POUs, and the communication configuration — on a bench test setup before scheduling the production cutover. This allows the engineering team to identify and resolve any firmware incompatibilities, library version conflicts, or I/O address mapping errors in a controlled environment rather than on the production line.

During the physical cutover, the existing terminal base wiring is preserved. The failed or obsolete CPU module is removed from the terminal base, and the PM564-RP-ETH is inserted in its place. The pre-validated Automation Builder project is then downloaded to the new CPU via the TK501 programming cable or Ethernet connection. Once the program is confirmed running and all I/O signals are verified against the process, the system is returned to automatic mode. For most straightforward CPU replacements, the physical swap and program download can be completed within a single planned maintenance window of two to four hours, depending on the complexity of the I/O configuration and the number of communication links that must be re-established.

KNMKS recommends that customers retain the original CPU module as a cold standby spare for a minimum of six months following the retrofit, until the replacement unit has been proven in production. This practice protects against the risk of an unexpected second failure during the stabilization period and avoids the lead time associated with sourcing a replacement on an emergency basis.

Retrofit Support FAQ

Q: Is the PM564-RP-ETH a direct drop-in replacement for the PM554-RP-ETH?
A: Yes, the PM564-RP-ETH is mechanically and electrically compatible with the same TB521/TB541 terminal bases used by the PM554-RP-ETH. The Automation Builder hardware configuration file must be updated to reference the PM564-RP-ETH, and the project must be re-downloaded to the CPU. No wiring changes are required in most standard installations.

Q: What commissioning steps are required after installing the PM564-RP-ETH?
A: After physical installation, download the updated Automation Builder project to the CPU, verify all I/O module addresses on the backplane, confirm communication links to any PROFINET or Modbus TCP/IP devices, and perform a full I/O force test before returning the system to automatic mode. Check that the DC531 or DC532 power supply module is not operating above 80% of its rated output capacity with the new CPU installed.

Q: Does KNMKS perform any testing before shipment?
A: Yes. Every PM564-RP-ETH unit supplied by KNMKS undergoes a functional power-on test prior to dispatch. The firmware version is recorded and included with the shipment documentation. Units are packaged in anti-static protective packaging and shipped with the original ABB datasheet and terminal base wiring reference.

Q: What support terms and stock availability does KNMKS offer?
A: All units are covered by a support terms confirmed by quotation from the date of shipment against manufacturing defects. KNMKS maintains stock for immediate dispatch to support both planned retrofit schedules and urgent breakdown replacement requirements. Contact our team for current lead times and volume pricing.

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Product Identification

Brand / Ecosystem

ABB
ABB

Model / Series

PM564-RP-ETH 1SAP121000R0071
AC500 Series

Product Family

PLCs & Controllers

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Available on request after model and quantity confirmation

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B2B RFQ, replacement inquiry and project spare-part request

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Control platform

PLC, PAC and modular controllers

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CPU, rack, power and I/O expansion

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Replacement, cabinet build and maintenance

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