ABB AC500 Modules: PM564-RP-ETH-AC

Technical Dossier

Product Details And Specifications

ABB AC500 Series: Comprehensive Module Range and Technical Overview

The ABB AC500 is a scalable, modular programmable logic controller platform deployed across heavy industry worldwide — including petrochemical refineries, nuclear auxiliary systems, steel rolling mills, water treatment infrastructure, and offshore oil & gas platforms. Its distributed I/O architecture, deterministic scan cycle, and IEC 61131-3 compliance have made it a de facto standard in process automation projects requiring long service life and multi-vendor integration.

The AC500 platform spans three hardware generations (AC500 V1, AC500 V2, and AC500-eCo), each maintaining backward compatibility at the software level while introducing enhanced CPU performance, expanded communication stacks, and improved environmental ratings. Installed base estimates exceed 500,000 units globally, making long-term spare parts availability a critical operational concern for plant maintenance teams.

📩 Looking for a specific AC500 model? Send your parts list to: sale@driveknms.com | WhatsApp: +86 18359293191

The Evolution of AC500 Architecture

The AC500 platform was introduced by ABB in the mid-2000s as a successor to the CS31 and Advant series controllers. The original V1 generation established the S500 I/O bus standard and the TB5xx terminal base ecosystem. Key architectural milestones include:

• AC500 V1 (2006–2012): PM554, PM556, PM564 CPUs with onboard Ethernet and serial ports. S500 I/O modules introduced standardized 8/16-channel DI/DO/AI/AO cards. Limited to 512 I/O points per station.
• AC500 V2 (2012–2020): Refreshed PM5xx-2ETH CPUs with dual Ethernet ports, PROFINET IO controller/device capability, and expanded memory. Introduced the TB5xx-2ETH terminal base family. Backward-compatible with V1 I/O modules.
• AC500-eCo (2014–present): Cost-optimized sub-range targeting smaller machine applications. PM5072-ETH and PM5082-ETH CPUs with integrated I/O. Not compatible with S500 expansion modules.
• AC500 V3 / AC500-S (Safety, 2018–present): SIL 2/3 certified safety CPUs (PM5650-2ETH-AC) for functional safety applications. Integrated with ABB Ability platform for IIoT connectivity.

Compatibility note: V1 terminal bases (TB5xx without -2ETH suffix) are not compatible with V2 CPUs. Procurement teams must verify terminal base generation when sourcing replacement CPUs to avoid field installation failures.

AC500 Full Catalog & Functionalities (SKU List)

The following SKUs represent the core AC500 module range. Each entry reflects verified product functionality within the AC500 ecosystem.

CPU / Controller Modules

• PM554-T-ETH: Entry-level CPU, 256KB program memory, 1x Ethernet, 1x RS-485, 512 I/O max
• PM556-T-ETH: Mid-range CPU, 512KB memory, Modbus TCP/RTU, CANopen master support
• PM564-RP-ETH-AC: High-performance CPU, 1MB program memory, dual RS-232/485, Ethernet, AC power input — the subject SKU of this page
• PM564-T-ETH: Equivalent to PM564-RP-ETH-AC with DC power supply input variant
• PM566-ETH: Advanced CPU with extended I/O capacity, PROFIBUS DP master, 2MB memory
• PM572-ETH: High-end CPU, 4MB memory, redundancy-ready, supports up to 2048 I/O points
• PM581-ETH: Top-tier V1 CPU with 8MB memory, hot-standby redundancy support
• PM591-ETH: V2 generation flagship CPU, dual Ethernet, PROFINET IO controller, 16MB memory
• PM5650-2ETH-AC: AC500-S safety CPU, SIL 2/3 certified, TÜV Rheinland approved

Digital Input (DI) Modules

• DI524: 16-channel 24VDC digital input, S500 bus, standard density
• DI572: 32-channel 24VDC digital input, high-density, S500 bus compatible
• DI581-S: 8-channel safety digital input, SIL 2 rated, for AC500-S systems

Digital Output (DO) Modules

• DO524: 16-channel 24VDC/0.5A transistor output, S500 bus
• DO572: 32-channel digital output, high-density, S500 bus
• DO581-S: 8-channel safety digital output, SIL 2, for AC500-S systems

Analog Input/Output (AI/AO) Modules

• AI523: 8-channel analog input, 0–10V / 4–20mA, 12-bit resolution
• AO523: 4-channel analog output, 0–10V / 4–20mA, 12-bit resolution

Communication & Fieldbus Modules

• CM572-DP: PROFIBUS DP master/slave communication module, S500 bus
• CM574-RS: RS-232/RS-485 serial communication expansion module
• CM577-ETH: Additional Ethernet port expansion for V1 CPUs
• CM589-PNIO: PROFINET IO device adapter for legacy AC500 V1 CPUs

Sourcing Hard-to-Find & Obsolete AC500 Parts

ABB has formally discontinued several AC500 V1 CPU and I/O modules, with end-of-life notices issued between 2019 and 2023. For plant operators running V1-generation systems, the options are: (1) full system migration to AC500 V2/V3 — capital-intensive and requiring re-engineering; (2) lifecycle extension through verified surplus stock — lower cost, faster execution, but dependent on supply availability.

DriveKNMS maintains a global sourcing network covering authorized distributors, certified surplus dealers, and OEM overstock channels across Europe, North America, and Asia-Pacific. For discontinued AC500 modules, we provide:

• Authenticity verification via serial number traceability and ABB factory label inspection
• Functional testing on dedicated AC500 backplane test rigs before shipment
• Documented chain of custody for compliance-sensitive industries (nuclear, pharma, rail)
• Alternative cross-reference recommendations where direct replacements are unavailable

Lead time for common V1 modules: 3–7 business days from verified stock. Hard-to-find V1 CPUs: 2–4 weeks subject to global sourcing. Safety-certified AC500-S modules: available with original TÜV documentation only.

Quality Control for the AC500 Range

AC500 modules — particularly CPU units with onboard Ethernet PHY chips and S500 backplane bus controllers — require specialized test procedures beyond basic power-on verification. DriveKNMS applies the following protocol to all AC500 units prior to dispatch:

• Backplane bus integrity test: Module seated in live AC500 rack; S500 bus communication verified via Automation Builder diagnostic scan
• CPU memory validation: Full program memory read/write cycle executed; flash memory sector health confirmed
• Ethernet port test: Link negotiation, ping response, and Modbus TCP transaction verified on all RJ45 ports
• Serial port test: RS-232 and RS-485 loopback test at 9600 and 115200 baud
• Firmware version check: Firmware version recorded and disclosed to buyer; downgrade/upgrade advisory provided if required
• Visual and mechanical inspection: Capacitor condition, connector pin integrity, conformal coating status, and label authenticity reviewed

All test results are documented and available upon request. Units failing any test stage are quarantined and not offered for sale.

📩 Contact Information

For RFQ, stock availability, lead time confirmation, or technical cross-reference support on ABB AC500 modules:

• Email: sale@driveknms.com
• WhatsApp: +86 18359293191
• Web: driveknms.com

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