ABB CM572-DP 1SAP170200R0001 Spare Part for Factory Uptime

Overview

ABB CM572-DP 1SAP170200R0001 Spare Part for Factory Uptime

The ABB CM572-DP (1SAP170200R0001) is an original PROFIBUS DP slave/master communication module engineered for the ABB AC500 PLC platform. Designed for continuous industrial operation in process automation, discrete manufacturing, and utility control environments, this module enables reliable PROFIBUS DP network integration across legacy and modern control architectures. Maintaining an in-stock supply of the CM572-DP is a proven strategy for reducing unplanned downtime, accelerating fault recovery, and sustaining long-term system availability in facilities where PROFIBUS remains the backbone fieldbus protocol.

For maintenance engineers managing AC500-based control cabinets, the CM572-DP is a critical node in the communication chain. A failed or degraded PROFIBUS DP module can isolate entire I/O segments, disable remote device communication, and halt production lines within minutes. Having a pre-tested, support terms-backed replacement on the shelf eliminates the lead-time risk associated with sourcing legacy communication modules under emergency conditions. Our stock is sourced from verified supply channels, subjected to pre-shipment functional testing, and covered by a support terms confirmed by quotation — ensuring that your replacement module performs identically to the original from the moment it is installed.

Procurement engineers evaluating spare parts strategy for AC500 installations should treat the CM572-DP as a Tier-1 critical spare. Its role in bridging the AC500 CPU — such as the PM573-ETH or PM554-T — to PROFIBUS DP field devices including remote I/O stations, variable frequency drives, and intelligent field instruments means that a single module failure can cascade across multiple process loops. Stocking one or two units per control cabinet cluster is a widely adopted practice in facilities with high availability requirements.

Spare Maintenance Table

Maintenance Planning for Continuous Operation

When replacing the CM572-DP in an AC500 control cabinet, a thorough inspection of adjacent components is essential to confirm that the communication fault is isolated to the module and has not propagated to connected hardware. Begin by verifying the AC500 CPU module — commonly a PM573-ETH or PM583-ETH — for firmware integrity and slot bus health. A corrupted CPU configuration or a failed backplane connector can mimic PROFIBUS DP communication errors and must be ruled out before the replacement module is commissioned.

Inspect the PROFIBUS DP cable and termination resistors at both ends of the network segment. Damaged shielding, incorrect termination, or excessive cable length are frequent contributors to intermittent communication faults that are often misattributed to the module itself. Verify the 9-pin Sub-D connector on the CM572-DP slot for bent pins or oxidation, particularly in high-humidity or chemically aggressive environments.

Check the AC500 power supply module — such as the PS501-PROG or a dedicated 24 VDC rail supply — for voltage stability. Undervoltage conditions on the backplane bus can cause the CM572-DP to drop off the PROFIBUS network intermittently, generating diagnostic alarms without triggering a hard fault. A calibrated multimeter or power quality analyzer should be used to confirm rail voltage within specification during peak load conditions.

Review the TB521-ETH or TB541-ETH terminal base if the AC500 system uses modular I/O expansion. Loose terminal connections or failed signal modules on the same backplane segment can generate bus errors that appear as CM572-DP faults in the diagnostic log. Similarly, inspect any DP/PA segment couplers or PROFIBUS repeaters in the network topology, as these devices are often overlooked during fault isolation.

For facilities running mixed PROFIBUS and Modbus RTU architectures, also verify the CM575-RS (RS-232/485 communication module) if installed in the same CPU slot group, as simultaneous communication module faults can indicate a systemic backplane or power issue rather than an isolated CM572-DP failure. Fuse inspection on the 24 VDC control circuit feeding the cabinet should be included in the replacement checklist as a standard precaution.

Site Replacement Workflow

Before removing the CM572-DP from service, export the current AC500 project configuration from Automation Builder or PS501 Control Builder Plus and save the PROFIBUS DP GSD file and node address assignments. This ensures that the replacement module can be configured identically without requiring a network re-scan or manual address reassignment, which is critical for minimizing downtime during emergency replacements.

Power down the AC500 CPU rack following the site lockout/tagout (LOTO) procedure. Remove the CM572-DP by releasing the module latch and sliding it out of the CPU slot. Inspect the backplane connector for debris or damage before inserting the replacement unit. Restore power and confirm that the new CM572-DP is recognized by the CPU — the module’s RUN LED should illuminate green and the BF (Bus Fault) LED should remain off once the PROFIBUS network is healthy.

Re-download the project configuration to the CPU and perform a live PROFIBUS DP network diagnostic using the Automation Builder online mode or a dedicated PROFIBUS diagnostic tool. Verify that all slave devices — including remote I/O racks, drives, and field instruments — are communicating without errors. Document the replacement in the site maintenance log, including the module serial number, installation date, and test results, to support support requests and future audit requirements.

The CM572-DP is a direct form-fit-function replacement for earlier AC500 PROFIBUS modules, requiring no hardware modification to the CPU rack. Compatibility with the full PM554–PM595 CPU range ensures that a single spare unit can serve multiple control cabinets across a facility, reducing the total spare parts inventory cost while maintaining coverage for the entire AC500 installed base.

Spare Parts Support FAQ

Q1: Is the CM572-DP 1SAP170200R0001 compatible with all AC500 CPU variants?
The CM572-DP is compatible with the full ABB AC500 CPU range, including PM554, PM564, PM573, PM583, PM591, PM592, and PM595 series modules. It occupies the left-side communication module slot on the CPU unit and requires no additional configuration beyond the standard PROFIBUS DP GSD file and node address assignment in Automation Builder.

Q2: What pre-shipment testing is performed on the CM572-DP before dispatch?
Each CM572-DP unit undergoes functional verification prior to shipment, including power-on self-test, backplane interface check, and PROFIBUS DP communication initialization. Units that do not pass testing are not dispatched. A support terms confirmed by quotation is provided from the date of shipment, covering manufacturing defects and functional failures under normal operating conditions.

Q3: How should the CM572-DP be stored as a long-term spare?
Store the module in its original anti-static packaging in a dry, temperature-controlled environment (0°C to +40°C, relative humidity below 75% non-condensing). Avoid storage near strong electromagnetic fields or corrosive atmospheres. Inspect the module annually for connector oxidation and verify firmware compatibility with the installed AC500 CPU version before deploying a long-stored unit.

Q4: Can the CM572-DP replace older ABB PROFIBUS modules from earlier AC500 generations?
The CM572-DP is designed for the current AC500 platform and is the recommended replacement for earlier PROFIBUS DP communication modules used in AC500 V2 and V3 systems. Compatibility should be verified against the specific CPU firmware version and Automation Builder project configuration. Our technical team can assist with compatibility confirmation prior to order placement to ensure a seamless site replacement.

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Product Identification

Brand / Ecosystem

ABB
ABB

Model / Series

CM572-DP 1SAP170200R0001
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 CM572-DP 1SAP170200R0001
• Quantity and required delivery time
• Application, replacement requirement or nameplate photo
• Destination country and shipping preference