ABB PCD230 PCD231 PCD235 Control Modules

The ABB PCD230, also cataloged as the PCD230 Control Module, operates as a dedicated hardware component for digital and analog I/O processing within ABB control networks.

Suffix Breakdown & Model Matrix

Hardware Specifications

Backplane Bus Communication Velocity and Firmware Compatibility

• The PCD series transfers field I/O process matrices directly across CAN bus communication channels, supporting low-latency data handshaking for deterministic system interaction. High-speed counter inputs and PWM outputs execute real-time control functions independent of bus update delays.
• Microcode firmware logic maintains cross-platform compatibility across ABB PLC environments, optimizing scan times across Profinet / EtherNet/IP deterministic networks and internal expansion buses. Onboard memory scaling handles high-density channel configurations without degrading execution execution cycles.

Frequently Asked Questions

Q: How do the I/O capacities and hardware outputs differ across the PCD230, PCD231, and PCD235 models?

A: The PCD230 features 32 digital I/O, 16 analog I/O, 4 PWM outputs, and 2 high-speed counters. The PCD231 includes 24 digital I/O, 8 analog I/O, and 8 discrete relay outputs. The high-density PCD235 expands capacity to 64 digital I/O, 32 analog I/O, 8 PWM outputs, and 4 high-speed counters.

Q: What primary fieldbus interface is integrated into all three module variants for system communication?

A: All models feature a CAN bus interface as their primary fieldbus network connection.

Field Installation Guidelines

• Shut down all power feeds to the control cabinet and verify a zero-voltage condition before installing or removing modules.
• Mount the module securely on a standard DIN rail or panel surface, ensuring the metallic grounding clip makes firm physical contact with earth ground.
• Terminate CAN bus communication cabling using shielded twisted-pair wire, applying 120 Ohm terminating resistors at both physical ends of the network.
• Keep low-level analog and pulse signal wiring isolated from high-voltage AC lines to minimize electromagnetic noise coupling.