Description
The ABB PCD231B101 is a high-performance central processing unit (CPU) card designed for use within the ABB Procontic T200 series PLC systems. This Processor Module is responsible for executing control logic, managing system-wide I/O scanning, and coordinating communication between peripheral devices in complex industrial automation environments.
Product Introduction
The PCD231B101 is an essential component of the T200 rack-based system. It is engineered to handle intensive arithmetic operations and logic control tasks with high deterministic reliability. As a core logic controller, it interprets user programs written in standard PLC languages and translates them into machine actions. It features robust hardware protection against electrical noise and environmental stressors typical of heavy industrial sites.
ABB PCD231B101
Product Parameters (Datasheet)
| Parameter | Specification |
| Model Number | PCD231B101 |
| System Series | ABB Procontic T200 |
| Module Type | Main Processor Unit (CPU) |
| Memory Capacity | Typically 32 KB to 64 KB (Program/Data) |
| Processing Speed | Approx. 0.5 ms per 1k instructions |
| Power Consumption | 5V DC / approx. 850 mA (Internal Bus) |
| Interface | RS-232/RS-485 for programming/diagnostics |
| I/O Addressing | Up to 1024 Digital / 128 Analog points |
| Battery Backup | Lithium battery for RAM retention |
| Operating Temp | 0°C to +55°C |
Country of Origin
- Origin: Germany / Switzerland
Usage Instructions
- Installation: Insert the PCD231B101 into the dedicated CPU slot of the Procontic T200 subrack. Ensure the rack power is turned off to prevent damage to the backplane pins.
- Configuration: Set the hardware address or operating modes using the DIP switches located on the side or front of the module as specified in the system documentation.
- Battery Installation: Verify that a fresh backup battery is installed in the front compartment to ensure the program remains in memory during power outages.
- Programming: Connect a programming terminal or PC with the appropriate ABB software via the serial interface. Download the logic and perform a system “Cold Start.”
- Status Monitoring: Observe the front-panel LEDs. A solid green “RUN” LED indicates normal operation, while a red “ERR” or “BATT” LED indicates a system fault or low battery.
ABB PCD231B101
Product Q&A
- Q: Is the PCD231B101 compatible with the T300 series?
- A: No, the PCD231B101 is specifically designed for the Procontic T200 backplane architecture and is not physically or electrically compatible with T300 racks.
- Q: What should I do if the “BATT” LED turns red?
- A: This indicates the backup battery voltage is low. Replace the battery while the system is powered on to avoid losing the internal RAM program.
- Q: Can this module be used in a redundant configuration?
- A: Standard T200 systems using the PCD231 series typically operate in a single-processor configuration. High-availability redundancy requires specialized T200 redundant bus hardware.
Recommended Similar Models
- ABB PCD230: An entry-level processor for the T200 series with smaller memory.
- ABB PCD232: An advanced processor variant with expanded data handling capabilities.
- ABB 07 KT 94: A newer generation controller from the AC31 series.
- ABB PCD235: A communication processor used alongside the PCD231 for networking.
- ABB PCD239: A high-speed counter or specialized math processor card.
Documentation & Support
For detailed memory mapping and instruction set documentation:
Download ABB PCD231B101 MANUAL datasheet
