ABB PM573-ETH 1SAP130300R0271 PLC CPU Module – Obsolete AC500 Spare Part

Technical Dossier

Product Details And Specifications

ABB PM573-ETH 1SAP130300R0271 PLC CPU Module – Obsolete AC500 Spare Part

RFQ support for obsolete parts: Send the model number, required quantity and destination so DriveKNMS can confirm sourcing options before quotation.

Technical Specifications

Solving the Discontinued Hardware Crisis

The ABB AC500 PM573-ETH was deployed extensively in process automation, water treatment, building management, and discrete manufacturing throughout the 2000s and 2010s. Many of these installations remain operational today — not because the hardware is obsolete in function, but because the surrounding process logic, field wiring, and operator training represent sunk costs that cannot be written off without significant capital expenditure.

When ABB discontinued the PM573-ETH, it did not render the installed base inoperable. It transferred the maintenance burden entirely to the end user. Facilities that failed to stockpile critical spares now face a binary choice: source from the secondary market or fund a full system migration. The secondary market window for quality units narrows each year as global inventory is consumed and not replenished.

Facilities running ABB AC500-based systems in regulated industries (pharmaceutical, food & beverage, utilities) face an additional constraint: validated control systems cannot be arbitrarily upgraded without triggering re-qualification protocols under GMP or equivalent frameworks. For these sites, maintaining the original hardware platform is not merely a cost preference — it is a compliance requirement. The PM573-ETH is not a legacy liability in these environments. It is a validated, qualified, and legally mandated component.

Condition & Reliability Assurance

DriveKNMS applies a structured 5-step inspection protocol to all obsolete PLC modules before dispatch:

• Step 1 – Electrolytic Capacitor Assessment: Aging electrolytic capacitors are the primary failure mode in stored PLC hardware. Each unit is inspected for capacitor bulging, leakage, and ESR deviation. Units with degraded capacitors are quarantined.
• Step 2 – Firmware Version Verification: The installed firmware version is documented and cross-referenced against known compatibility matrices for AC500 I/O modules and programming environments (Automation Builder / PS501).
• Step 3 – Pin and Connector Inspection: All backplane connectors and communication ports are examined under magnification for oxidation, corrosion, and mechanical deformation. Affected contacts are treated or the unit is rejected.
• Step 4 – Functional Power-On Test: Where test infrastructure permits, units are powered and basic diagnostic routines are executed to confirm CPU initialization and communication port response.
• Step 5 – Packaging and ESD Protection: Units are packed in anti-static bags with desiccant, inside rigid foam-lined cartons, to prevent transit damage and humidity ingress.

Key Features for System Maintenance

• Drop-in replacement: The PM573-ETH installs directly onto existing TB511/TB521 terminal bases without hardware modification.
• No reprogramming required: Application programs stored on the SD card or uploaded via Automation Builder are fully compatible. Existing project files do not require modification.
• Avoids engineering reconstruction costs: Substituting a like-for-like CPU eliminates the need for I/O remapping, HMI screen redesign, or network topology changes.
• Preserves validated system state: For regulated facilities, maintaining the original CPU model preserves the validated configuration baseline, avoiding re-qualification expenditure.
• Extends asset life by 5–10 years: A single verified spare, properly stored, provides the operational runway needed to plan a controlled, budgeted migration on the facility's own schedule — not under emergency conditions.

Q: How do I confirm the unit is new or quality-refurbished?
A: Each unit is accompanied by a condition report documenting inspection findings and test results. New-in-box units are identified as such. Refurbished units are clearly graded. We do not mix grades without disclosure.

Q: Can you source specific firmware versions?
A: Firmware version availability varies by unit. Please specify your required version when enquiring and we will confirm compatibility before dispatch review.