SAIA-BURGESS PCD3.C100 B4265778 PCD3 Series Communication Module

Overview The SAIA-BURGESS PCD3.C100 (B4265778) is a communication expansion module for the Saia PCD3 PLC system. It provides extra serial communication ports for data exchange between the PCD3 CPU and field devices, HMI, or remote controllers, widely stocked as legacy spare for building automation, HVAC and pump control systems.

Features This PCD3.C100 module mounts on the PCD3 rack backplane. The PCD3.C100 supports S-Bus, Modbus RTU and other serial protocols, with configurable baud rate and parity settings. It has diagnostic LEDs for communication status and fault indication, and is programmed via Saia PG5 software. It is compatible with PCD3 series CPUs and I/O modules.

Specs Model: PCD3.C100 Serial No.: B4265778 Series: Saia-Burgess PCD3 Type: PLC serial communication module Bus: S-Bus, Modbus RTU Mounting: PCD3 rack backplane Protection class: IP20 Certifications: CE Product status: obsolete automation spare

Principle The module converts internal backplane bus data into serial protocol frames and transmits them to external equipment; it also receives incoming serial messages and forwards them to the PCD3 CPU for processing.

Applications The PCD3.C100 B4265778 is widely deployed in BMS building management systems, HVAC control panels, water pumping stations and factory automation cabinets. It is used for serial communication expansion of Saia PCD3 PLC.