ABB DSPC172H | ABB MasterPiece Processor Unit, 57310001-MP | In Stock

Description

Key Technical Specifications

Product Introduction

I’ve opened more Advant OCS cabinets than I’d like to admit, and the DSPC172H is usually the board everyone prays doesn’t fail on a Friday afternoon. It is not a robot controller. It is not an AC 800M CPU — though some third-party listings blur that line. It is the MasterPiece/Advant OCS processor unit that runs the show in older DCS and process control racks, handling logic execution, CEX-bus traffic, and S800 I/O management.Engineers keep this card on the shelf because finding a compatible replacement for a legacy Advant OCS system is not something you want to figure out during a plant outage. The 24 VDC redundant supply and -40°C to +70°C temperature range tell you this was built for real process environments. The DSMB178 memory submodule is a critical companion — without it, larger programs may not fit or may lose retention on power loss. Just don’t assume every DSPC172H ships with the same firmware or memory configuration. That assumption has killed more commissioning weekends than I care to count.

Quality SOP & Tech Pitfalls

The Lab Report (SOP):

1. Visual and counterfeit check — label, order number 57310001-MP, connector pins, housing stress, and revision markings.
2. Connector inspection — verify no bent or pushed-back pins on the CEX-bus and backplane connectors.
3. Live test on an Advant OCS/MasterPiece test rack — module recognition, LED status, and CEX-bus communication.
4. Memory submodule verification — if a DSMB178 is installed, confirm recognition and data retention.
5. Firmware/revision logging — record hardware and firmware revision for compatibility traceability.
6. Insulation and multimeter spot checks on supply rails where applicable.
7. Anti-static bag, foam, and sealed carton.

The Engineer’s Warning (Pitfalls):
The biggest field mistake I see with the DSPC172H is ignoring the memory configuration. If your original board had a DSMB178 submodule and the replacement does not, your program may not load — or worse, it loads but loses critical data on every power cycle. Photograph the memory submodule before you pull the old board.Second: firmware mismatch. A DSPC172H with an older or newer firmware revision than the rest of your Advant OCS rack can cause communication timeouts, I/O mapping errors, or outright rejection by the system. Always check the firmware tag on the original unit and match it as closely as possible.

Installation & Configuration Guide

1. Pre-Installation ⚠️

• Place the Advant OCS/MasterPiece system in a safe state and confirm redundancy status if applicable.
• Photograph the existing board, DSMB178 memory submodule (if present), slot position, and all cable connections.
• Back up the current control program and configuration from the engineering workstation.
• Verify the replacement DSPC172H firmware revision matches the original as closely as possible.

2. Removal

• Label all CEX-bus cables and backplane connections.
• Release the retaining clips or screws securing the module.
• Remove the board carefully, noting the orientation of any installed DSMB178 submodule.
• Inspect the backplane connector for debris or damage before installing the replacement.

3. Installation

• Install the DSMB178 memory submodule onto the replacement board if the original had one — this step prevents most startup failures.
• Seat the DSPC172H firmly into the correct slot and secure the fasteners.
• Reconnect all CEX-bus and backplane cables exactly as labeled.
• Verify no adjacent modules were disturbed during removal.

4. Power-On & Testing

• Apply 24 VDC and verify the module LEDs indicate normal operation.
• Confirm the processor is recognized by the Advant OCS system and CEX-bus communication is established.
• Verify the DSMB178 memory submodule is detected and data retention is functional.
• Download or verify the control program from the engineering workstation.
• Monitor for any new module faults or communication errors in the diagnostic log.
• Document the as-found and as-left firmware revisions.

Compatible Replacement Models

Frequently Asked Questions (FAQ)

Is the DSPC172H the same as an AC 800M CPU?
No. The DSPC172H belongs to the older MasterPiece/Advant OCS platform. AC 800M processors (PM8xx series) are a completely different architecture and are not interchangeable.Can I use any DSPC172H as a replacement?
Not automatically. Firmware revision, memory configuration, and the presence of a DSMB178 submodule all matter. A board without the memory submodule will fail if your original system requires it.What happens if the DSMB178 memory module is missing?
The processor may boot but fail to load the full control program, or it may lose program data on every power cycle. Always verify the memory submodule is installed and recognized.Can I upgrade from DSPC172H to AC 800M?
Technically yes, but it is not a swap — it is a full system migration. You need new chassis, I/O modules, engineering tools, and significant commissioning time. Only do this as part of a planned upgrade.What condition are these modules in?
Stock is typically new surplus or verified surplus. Each unit is visually inspected and functionally tested where possible. If you need a specific firmware revision or memory configuration, confirm it before ordering.Does this board support redundancy?
The DSPC172 family supports redundant configurations in certain Advant OCS architectures. Verify your specific system configuration and OEM documentation before relying on redundancy features.Can I hot-swap this module?
Advant OCS systems have specific procedures for online module replacement. Do not attempt a hot swap without confirming your system supports it and without following the OEM procedure. A wrong move can take down the entire CEX bus.