Product Core Brief

• Model: DSPC170
• Order Code: 57310001-GL (common suffix /7)
• Brand: ABB
• Series: ABB Industrial Control Systems (DCS/PLC)
• Core Function: High-performance central processing unit (CPU) module that serves as the “brain” of ABB DCS/PLC control systems — executes real-time control logic, runs multi-tasking process algorithms, monitors system data, and coordinates communication across the control network to maintain deterministic process control.
• Product Type: Processor Board / CPU Module
• Key Specs: Dual-core processor architecture | Large-capacity memory | Real-time multi-tasking processing | High-speed computation | Support for multiple industrial communication protocols | Rack-mount modular design
• Condition: New Original / New Surplus

Key Technical Specifications

• Product Type: High-Performance Processor Board (CPU Module) for DCS/PLC Systems
• Brand: ABB
• Model Number:
• Order Code: 57310001-GL (reference; common suffix /7)
• Series: ABB Industrial Control Systems (DCS/PLC)
• Core Function: Central processing unit that executes real-time control logic, runs multi-tasking process algorithms, monitors system data, and coordinates communication across the control network — serves as the computational core of ABB DCS/PLC architectures
• Processor Architecture: Dual-core processor (Dual-Core) — enables parallel processing of complex control algorithms and multiple simultaneous tasks, delivering microsecond-level response times for high-speed production lines
• Memory: Large-capacity memory — supports storage of large-scale control programs, historical trend data, and process logs without performance degradation
• Processing Capability: Real-time multi-tasking processing — handles complex control loops, interlock logic, sequence control, and data acquisition simultaneously with deterministic scan performance
• Communication Interfaces: Supports multiple industrial communication protocols and data formats — enables seamless integration with上位机 (host computers), HMI panels, field devices, and other intelligent equipment on the DCS/PLC network
• Control Precision: High-precision process control — maintains accurate regulation of process variables (temperature, pressure, flow, level) through fast computation and deterministic execution
• Mounting Method: Rack/backplane-mounted modular plug-in format — designed for installation in compatible ABB DCS/PLC chassis with straightforward replacement
• Physical Dimensions: Compact design suitable for control cabinet installation; specific dimensions vary by chassis type
• Operating Environment: Industrial control room environments; operating temperature range suitable for standard indoor installations
• Environmental Rating: Meets relevant industrial standards including CE and RoHS compliance
• Origin: Sweden
• Compatibility: ABB DCS/PLC industrial control systems — serves as a native CPU module for plants standardizing on ABB controller architectures
• Typical Applications: Core controller for process control in steel mills, chemical plants, power generation facilities, paper mills, and cement plants; real-time monitoring and control of continuous and batch processes; serving as a critical spare part for lifecycle support of mature ABB DCS/PLC installations where CPU redundancy or replacement is required

Product Introduction

The ABB DSPC170 (order code 57310001-GL) is a high-performance processor board designed for ABB’s industrial DCS/PLC control systems, engineered to serve as the computational core that drives real-time process control in demanding industrial environments. As the central processing unit of ABB controller architectures, the DSPC170 is responsible for executing the control logic that keeps industrial processes running — from simple on/off sequencing to complex PID loops, interlock logic, and multi-variable control strategies.

What distinguishes the DSPC170 is its dual-core processor architecture, which enables parallel processing of multiple control tasks simultaneously. In a typical installation, one core may handle time-critical control loops (such as pressure regulation or flow control) while the other manages communication, data logging, and diagnostic functions — ensuring that high-priority control tasks are never delayed by background processing. This architecture delivers microsecond-level response times, which is essential for high-speed production lines and safety-critical applications where even millisecond delays can have consequences.

The module’s large-capacity memory is another key advantage for system integrators and plant engineers. Unlike older single-core CPU modules that struggle with large control programs and extensive data logging, the DSPC170 can store complex control strategies, historical trend data, and process logs without performance degradation. This makes it particularly valuable for plants that have expanded their control scope over time — adding new control loops, integrating additional field devices, or implementing advanced process control strategies — without requiring a full system migration.

For MRO procurement teams maintaining mature ABB DCS/PLC installations, the DSPC170 is a foundational spare part. A CPU module failure can bring an entire control system offline, resulting in production shutdown, safety system degradation, and significant financial loss. Having a verified genuine DSPC170 on hand ensures that a failed CPU can be replaced quickly during a maintenance window, minimizing downtime and restoring full control system functionality.

The DSPC170’s support for multiple industrial communication protocols means it can integrate seamlessly with existing plant networks — communicating with HMIs, historians, fieldbus devices, and other controllers without requiring additional gateways or protocol converters. Its modular rack-mount design allows for straightforward replacement in the field, with the module sliding into the designated chassis slot and connecting to the backplane without complex rewiring.

 

QA & Testing SOP

Every unit undergoes a standardized verification process before shipment:

• Visual & Anti-Counterfeit Check: Inspect the module housing for proper ABB branding and part number marking (DSPC170, 57310001-GL). Check for physical damage including cracked PCB, damaged connector pins, burnt components, or signs of moisture ingress (corrosion, white residue on contacts).
• Connector Pin Inspection: Examine the backplane connector pins for straightness, corrosion, or bending. Bent pins can cause intermittent connections or short circuits when inserted into the DCS/PLC chassis.
• Backplane Power Test: Insert the module into a test ABB DCS/PLC chassis and verify that it correctly draws power from the backplane with no abnormal current draw or voltage drop.
• Processor Boot Test: Power up the module and verify that the dual-core processor boots correctly, with both cores initializing without errors and the module entering a ready state.
• Memory Integrity Test: Run a comprehensive memory test to verify that all memory regions are accessible and error-free, with no bit errors or address faults.
• Real-Time Processing Test: Execute a standard control program on the module and verify that it processes control loops with deterministic scan times, with no missed scans or timing jitter.
• Multi-Tasking Test: Run multiple simultaneous tasks (control loop execution, communication handling, data logging) and verify that the dual-core architecture maintains performance without task starvation or priority inversion.
• Communication Interface Test: Verify that all communication interfaces function correctly, with the module able to send and receive data over the supported industrial protocols without communication errors or timeouts.
• I/O Coordination Test: Verify that the CPU module correctly reads input data from I/O modules, executes control logic, and writes output data to I/O modules with no data corruption or timing issues.
• Long-Duration Stability Test: Run the module under continuous load for an extended period to verify stable operation with no processor overheating, memory leaks, communication dropouts, or performance degradation.
• Anti-Static & Mechanical Protection: After passing all tests, the module is placed in anti-static shielding with protective caps on connectors. It is then packed in rigid cardboard with foam cushioning to prevent mechanical shock and ESD damage during transit.

Installation Pitfalls & Guide

Real-World Risks When Replacing This Module:

❗ Configuration Mismatch: The DSPC170 must be loaded with the correct control program, I/O configuration, and communication settings before it can function in the system. A replacement module shipped without the plant’s specific configuration will boot but will not execute the correct control logic. Always verify that the replacement module is pre-loaded with the correct configuration or that you have the configuration files available to download after installation.

❗ Incorrect Slot Placement: The DSPC170 must be installed in the designated CPU slot position specified in the system configuration. Installing it in the wrong slot can prevent the chassis from recognizing the CPU, resulting in complete system failure. Always verify the slot assignment matches the system documentation before insertion.

❗ Loss of Control on Replacement: When replacing a failed DSPC170, all control functions managed by that CPU will be lost during the swap. For systems without redundant CPUs, this means a complete loss of process control. Always schedule the replacement during a planned maintenance window, and if possible, put the process in a safe state (manual mode, bypassed interlocks, or shutdown) before removing the failed module.

❗ Firmware Version Mismatch: If the DSPC170 has a different firmware version than the rest of the system, it may not communicate correctly with other modules or may execute control logic differently. Always verify the firmware version of the replacement module matches the system requirements before installation.

❗ Redundancy Configuration: If the system uses redundant CPUs, the replacement DSPC170 must be configured as the correct redundancy partner (primary or standby) and synchronized with the surviving CPU before being brought online. Incorrect redundancy configuration can cause both CPUs to attempt to act as primary, resulting in control conflicts.

❗ Hot-Swap Risk: While some ABB DCS/PLC chassis support hot-swapping of CPU modules (particularly in redundant configurations), removing or inserting the DSPC170 while the system is powered can cause momentary loss of control. For non-redundant systems, hot-swapping the CPU will cause an immediate loss of all control functions. Always follow the manufacturer’s hot-swap procedure and verify system compatibility before attempting a live replacement.

4-Step Replacement Guide:

1. Pre-Install: Identify the failed CPU slot and document the existing configuration (slot position, firmware version, control program version, I/O configuration, communication settings, redundancy partner settings if applicable). Back up the current control program and configuration from the surviving CPU (in redundant systems) or from the engineering workstation. If possible, schedule the replacement during a planned maintenance window and put the process in a safe state. Notify operations of the planned CPU replacement and potential loss of control.
2. Removal: If hot-swap is supported and the system is redundant, follow the proper redundancy failover procedure to transfer control to the surviving CPU before removing the failed module. For non-redundant systems, shut down the process and power down the chassis if required by the system documentation. Disconnect any external communication cables from the module. Release the module locking mechanism and carefully slide the old DSPC170 out of the chassis slot. Inspect the backplane connector for damage or debris.
3. Install: Insert the new DSPC170 module into the correct CPU slot, ensuring proper alignment with the backplane connector. Secure the module with the locking mechanism. Reconnect any external communication cables. If the module is not pre-configured, download the correct control program, I/O configuration, and communication settings from the engineering workstation. For redundant systems, configure the new module as the correct redundancy partner and initiate synchronization with the surviving CPU.
4. Power-On Test: Power up the chassis (if it was shut down). Verify that the module boots correctly and that both processor cores initialize without errors. Check the system for any CPU fault codes or communication errors. Verify that the control program is loaded and executing correctly. Test communication with HMIs, historians, and field devices. For redundant systems, verify that redundancy synchronization is complete and that failover testing confirms proper operation. Monitor the system for stable operation before returning to full production.

 

Technical FAQ

What is the difference between the DSPC170 and other ABB CPU modules? The DSPC170 is a high-performance dual-core processor module designed for ABB DCS/PLC systems that require real-time multi-tasking capability and high-speed computation. Compared to older single-core CPU modules, the DSPC170 offers parallel processing of multiple control tasks, larger memory capacity, and faster communication interfaces. It is suitable for applications where complex control algorithms, extensive data logging, or high-speed process control are required. For simpler applications with fewer control loops, a lower-performance CPU module may be sufficient.

Can the DSPC170 be used in redundant CPU configurations? Yes, the DSPC170 supports redundant CPU configurations in compatible ABB DCS/PLC systems. In a redundant setup, two DSPC170 modules operate as primary and standby partners, with the standby CPU continuously synchronized with the primary. If the primary CPU fails, the standby automatically takes over control without interruption to the process. Redundancy configuration requires proper setup in the system configuration software and synchronization between the two CPUs.

What are common failure modes for this module? Common failure modes include: backplane connector pin damage from repeated insertion/removal; processor failure due to overheating (often caused by blocked ventilation or failed cooling fans in the chassis); memory corruption from power surges or ESD events; firmware corruption from interrupted program downloads; and communication interface failure preventing the CPU from communicating with I/O modules or the network. In most cases, a failing DSPC170 will trigger CPU fault indicators on the module and generate fault codes in the system diagnostics.

What warranty do you offer on New Surplus parts? We provide a full 12-month warranty on all New Original / New Surplus units. This is fundamentally different from refurbished or pulled modules, which often carry 30–90 day warranties and come with unknown operational history, potential connector wear, and degraded processing performance. For a CPU module that serves as the computational core of your control system, the reliability difference between new surplus and refurbished directly impacts process safety and the risk of unplanned downtime.