SAIA PCD1 Programmable Controller – Easily Integrate into Distributed Control Systems, Extend the Life of Your Projects!

The SAIA PCD1 is a versatile micro-programmable logic controller (PLC) developed by Saia-Burgess Controls (now Schneider Electric), designed for compact automation tasks in building management, infrastructure, and industrial applications. As the foundational unit in Saia’s PCD series, this controller combines robust processing power with modular I/O expansion, supporting up to 512 digital/analog points. The PCD1 executes control logic via Saia’s PG5 software using IEC 61131-3 languages (FBD, LD, ST), featuring embedded communication ports for Modbus, CANopen, and Ethernet/IP. With its IP20-rated housing and -25°C to +70°C operating range, the SAIA PCD1 delivers reliable performance in HVAC systems, elevator controls, and renewable energy installations. Its integrated real-time clock and event logging enable timestamped diagnostics, while <1>

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Description

The SAIA PCD1 is a versatile micro-programmable logic controller (PLC) developed by Saia-Burgess Controls (now Schneider Electric), designed for compact automation tasks in building management, infrastructure, and industrial applications. As the foundational unit in Saia’s PCD series, this controller combines robust processing power with modular I/O expansion, supporting up to 512 digital/analog points. The PCD1 executes control logic via Saia’s PG5 software using IEC 61131-3 languages (FBD, LD, ST), featuring embedded communication ports for Modbus, CANopen, and Ethernet/IP. With its IP20-rated housing and -25°C to +70°C operating range, the SAIA PCD1 delivers reliable performance in HVAC systems, elevator controls, and renewable energy installations. Its integrated real-time clock and event logging enable timestamped diagnostics, while <1>

SAIA PCD1

SAIA PCD1

Technical Specifications

Parameter Name Parameter Value
Product Model PCD1
Manufacturer Saia-Burgess Controls (Schneider Electric)
Product Type Micro PLC
CPU 32-bit RISC @ 80 MHz
Memory 512 KB Flash / 128 KB RAM
I/O Capacity 512 points max (via expansion)
Digital I/O 24 VDC Sink/Source (configurable)
Analog I/O 0-10 V / 4-20 mA (optional modules)
Communication Ports 1x RS-485, 1x Ethernet 10/100, 1x USB
Protocols Modbus RTU/TCP, CANopen, Saia S-Bus
Programming PG5 Suite (IEC 61131-3)
Operating Temperature -25°C to +70°C
Power Supply 24 VDC ±20%
Certifications UL, CE, cULus, RoHS
Enclosure IP20 (DIN-rail mount)

Main Features and Advantages

Flexible architecture: Modular design supports plug-in expansion cards for analog, thermocouple, or communication interfaces (e.g., PCD1.E402 CANopen card). The SAIA PCD1’s Web-PLC functionality enables remote HMI access via built-in web server – no additional software required.

Engineering efficiency: PG5 software offers single-platform configuration, simulation, and diagnostics. Automatic code validation reduces debugging time by 70%. Battery-backed RAM retains data for 5+ years during outages.

Cybersecurity resilience: Hardware-level password protection and configurable firewall rules prevent unauthorized access. The controller’s deterministic scan cycle (<1>

Application Field

The SAIA PCD1 excels in distributed control:

 

Building Automation: Manages lighting, HVAC valves, and occupancy sensors in smart offices.

 

Transportation: Controls baggage handling conveyors and elevator door sequencing.

 

Water Infrastructure: Governs pump VFDs and chlorination systems in compact stations.

 

Renewables: Monitors solar inverter outputs and wind turbine pitch backups.
In refrigeration plants, it survives -25°C start-ups while controlling compressor staging.

SAIA PCD1

SAIA PCD1

Related Products

 

PCD2.M5xxx: Mid-range PLC with enhanced memory (2 MB) and PROFIBUS support.

 

PCD3.D4xx: High-performance controller for redundant systems.

 

PCD1.W230: Ethernet/IP expansion module.

 

PCD1.A201: 8-channel analog input card.

 

PG5-SW: Programming suite with OPC UA server.

 

S-Bus Repeater: Extends S-Bus network range to 1,000m.

 

 

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