Omron SYSMAC CQM1

• Omron SYSMAC CQM1 Programmable Controller
• CPU module: CQM1-CPU21
• Power supply: CQM1-PA203

General System Overview

• Type: Programmable Logic Controller (PLC)
• Series: SYSMAC CQM1
• Manufacturer: Omron Corporation

CPU Module — CQM1-CPU21

• Model: CQM1-CPU21
• Program Capacity: ~7.2K steps
• Data Memory: ~6K words
• Processing Speed: ~0.96 µs per basic instruction
• I/O Capacity: Up to 256 I/O points (with expansion units)

Communication Ports

• COM1: Peripheral port (programming / HMI)
• COM2: RS-232C serial communication

Status Indicators

• POWER: Power supply status
• RUN: PLC running
• ERR/ALM: Error or alarm condition
• OUT INH: Outputs inhibited

Power Supply — CQM1-PA203

• Model: CQM1-PA203
• Input Voltage: 100–240 VAC
• Frequency: 50/60 Hz
• Output Voltage: 5 VDC (internal PLC bus supply)
• Power Capacity: ~25 W

System Features

• Modular expandable design
• DIN rail mounting
• Supports digital and analog I/O modules
• Compatible with Omron HMIs and SCADA systems
• Ladder logic programming

Typical Applications

• HVAC systems (fans, airflow control like your cooler)
• Industrial automation
• Conveyor systems
• Pump and motor control