ABB CM572-DP 1SAP170200R0001 Original Industrial Spare AC500

Product Overview

ABB CM572-DP 1SAP170200R0001 Original Industrial Spare AC500: System Stability & Maintenance Value

The ABB CM572-DP (1SAP170200R0001) is a factory-original PROFIBUS DP slave communication module engineered for the ABB AC500 PLC platform. In industrial environments where production continuity is non-negotiable, this module serves as a critical interface between the AC500 CPU and PROFIBUS DP field devices — including distributed I/O stations, variable frequency drives, servo controllers, and intelligent field instruments. Sourced directly from authorized supply channels and fully tested prior to dispatch, the CM572-DP is a trusted replacement component for maintenance engineers managing aging control systems, executing planned shutdowns, or building strategic spare parts inventories.

Whether your facility operates continuous process lines, discrete manufacturing cells, or hybrid automation architectures, the CM572-DP ensures that your PROFIBUS DP network remains stable, deterministic, and fully compatible with your existing AC500 infrastructure — without requiring software reconfiguration or hardware redesign.

Critical Technical Specs

Preventive Maintenance Strategy

A PROFIBUS DP communication fault is one of the most disruptive events in an AC500-based control system. When the CM572-DP module is flagged during a diagnostic scan or fails during operation, the impact cascades across every slave device on the network segment — from remote I/O racks and motor starters to pressure transmitters and valve positioners. Experienced maintenance teams know that replacing the module alone is rarely sufficient; a thorough inspection of the surrounding system is essential to prevent repeat failures and ensure long-term network stability.

During any CM572-DP replacement or scheduled inspection, it is strongly recommended to simultaneously evaluate the AC500 CPU module (PM554 / PM564 / PM573 series) for firmware currency and diagnostic log integrity. The TB5xx or TB6xx terminal base that houses the CM572-DP should be inspected for backplane connector wear, corrosion, and secure seating. The PROFIBUS DP bus connector (9-pin Sub-D) and its integrated termination resistor should be tested for continuity and proper impedance — a degraded connector is a leading cause of intermittent communication errors that are often misdiagnosed as module failure.

Field engineers should also inspect the AC500 power supply module (PS5xx series) during the same maintenance window. Voltage ripple or insufficient current capacity on the 24 VDC rail can cause erratic behavior in communication modules even when the module itself is fully functional. If the control cabinet includes digital or analog I/O expansion modules (DA501, DA502, DC532, AX521 series), verify that their PROFIBUS addresses are correctly set and that no address conflicts exist on the network.

For systems with mixed communication architectures, check the status of any co-installed CM577-ETH Ethernet communication module or CM575-DN DeviceNet module — these modules share the AC500 backplane and can be affected by the same power or mechanical disturbances that cause CM572-DP failures. If your facility uses ABB ACS series variable frequency drives as PROFIBUS DP slaves, confirm that their PROFIBUS adapter cards (RPBA-01 or FDNA-01) are seated correctly and that drive parameters for PROFIBUS communication are intact after any power cycle.

Finally, review the condition of the PROFIBUS DP cable shielding and grounding throughout the cabinet and field wiring runs. Poor shielding is a systemic issue that will continue to cause communication instability regardless of how many modules are replaced. Proactive cable inspection, combined with a verified spare CM572-DP on the shelf, is the most cost-effective strategy for maintaining network uptime in AC500-based automation systems.

Strategic Replacement Solutions

The CM572-DP 1SAP170200R0001 is a direct, plug-and-play replacement for any AC500 system currently running a PROFIBUS DP slave communication module. Because the module operates as a slave on the PROFIBUS network, replacement does not require changes to the master PLC program or network configuration — provided the replacement unit is configured with the same station address as the failed module. This makes the CM572-DP one of the most straightforward field replacements in the AC500 ecosystem, with typical swap-out times of under 30 minutes for a trained technician.

For facilities managing legacy AC500 systems originally commissioned 8–15 years ago, the CM572-DP provides a path to extend system life without migrating to a new PLC platform. Maintaining original hardware compatibility preserves the investment in existing PROFIBUS field wiring, GSD files, and operator training — while avoiding the cost and risk of a full system migration. Procurement teams are advised to maintain at least one CM572-DP unit in local stock for each production line that relies on PROFIBUS DP communication, particularly in facilities where unplanned downtime carries significant financial or safety consequences.

All units supplied by TOPNLMS are sourced from verified channels, individually tested for communication functionality prior to dispatch, and shipped with full traceability documentation. Each unit is covered by a 12-month warranty against manufacturing defects and functional failure under normal operating conditions.

Support FAQ

Q1: Is the CM572-DP 1SAP170200R0001 compatible with all AC500 CPU variants?
The CM572-DP is compatible with AC500 PM5xx series CPUs mounted on TB5xx and TB6xx terminal bases. It is not compatible with the older AC500-S safety CPU or the AC500-eCo compact series. If you are unsure of your CPU variant, provide your CPU order code and we will confirm compatibility before shipment.

Q2: How is the unit tested before shipment?
Each CM572-DP unit undergoes functional verification including power-on self-test, PROFIBUS DP communication handshake simulation, and visual inspection for physical damage. Units that do not pass all test criteria are not dispatched. A test report is available upon request for critical procurement orders.

Q3: What does the 12-month warranty cover?
The warranty covers manufacturing defects and functional failure under normal operating conditions for 12 months from the date of shipment. It does not cover damage resulting from incorrect installation, overvoltage events, physical impact, or use outside the specified environmental ratings. Warranty claims are processed within 5 business days of receipt of the returned unit.

Q4: Can I order multiple units for strategic spare parts inventory?
Yes. TOPNLMS supports bulk procurement for maintenance spare parts programs. Volume pricing is available for orders of 3 or more units. Contact our team to discuss lead times, packaging requirements, and long-term supply agreements for critical spare parts.