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SAIA PCD4.M110｜Programmable Logic Controller｜
Key Features
Simplified Modular Design
CPU and I/O modules are separated, supporting on-demand expansion of digital and analog modules.
Expansion scale is lower than high-end models (e.g. PCD4.M120), making it ideal for applications with fewer I/O points and avoiding functional redundancy.
Industrial-Grade Reliability
Designed with industrial-grade components for a –25 °C to +70 °C operating range.
EMC compliant and vibration-resistant, meeting IEC 61131-2 industrial standards for harsh environments such as workshops and outdoor control cabinets.
Built-In Communication & I/O
Includes essential communication interfaces and some integrated I/O channels.
Enables basic control and data interaction without additional modules, reducing initial deployment costs.
Lightweight Programming
Compatible with SAIA universal programming tools and standardized languages.
Low entry barriers for rapid development and debugging of small and medium-sized projects.
Category-Specific Specifications
Core Performance
Processor: 32-bit industrial-grade CPU, basic instruction execution time ≤ 2 µs (suitable for standard logic control)
User Memory: 512 KB standard (program + data); optional 1 MB Flash memory for backup/offline storage
Real-Time Clock: Built-in RTC with battery backup, time accuracy ±1 minute/month
I/O Expansion Capability
Central I/O Points: Up to 256 points (with PCD4 dedicated I/O modules)
Remote Expansion: Via Profibus DP (slave mode) up to 1024 remote I/O points
Supported Modules: DI/DO, AI/AO, temperature acquisition (PT100), low-speed counting up to 50 kHz
Integrated I/O Channels
Digital: 8 digital inputs (24 VDC, PNP/NPN configurable) + 4 digital outputs (24 VDC, 0.5 A/point)
Analog: 4 analog inputs (default 0–20 mA; configurable to 4–20 mA or 0–10 V); 12-bit resolution (0–4095)
Communication Interfaces
Serial Ports: 2 configurable RS-232/RS-485 ports supporting Modbus RTU (connect HMI, drives, etc.)
Industrial Bus: Profibus DP (slave mode; master requires expansion module)
Ethernet: Optional Ethernet module (e.g. PCD4.ETH) adds TCP/IP communication and Modbus TCP support
SAIA PCD4.M110｜Programmable Logic Controller｜
Physical & Certification
| Parameter | Value |
|---|---|
| Installation | DIN-rail, approx. 80 × 120 × 75 mm (W×H×D) |
| Protection Level | IP20 (install inside closed control cabinet) |
| Certifications | CE, UL, CSA, RoHS compliant |
By structuring the information in this manner, the article provides a clear and organized understanding of input channels, transducer supply, and communication implementations in distributed control systems.
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