Overview
The Omron CPM2A-40CDR-A is a micro programmable logic controller designed for cost-effective industrial automation and motion control. This brick-style PLC provides a powerful instruction set and modular I/O expansion in a compact, space-saving package suitable for machinery control, process automation, and field-level control applications.
Key Features
- 24 digital inputs and 16 relay outputs (40 I/O points standard)
- Expandable architecture: connect up to three expansion modules for maximum 120 I/O points
- Synchronized pulse control for coordinated input/output timing
- Real-time clock for time-based event scheduling
- 20 kHz high-speed counter inputs and two 10 kHz pulse outputs for position control
- Panel mount with removable screw-type terminals for fast wiring
- RS-232C peripheral port for direct connection to serial devices and programming tools
- Auxiliary 24 VDC supply output (AC model)
Technical Specifications
This table summarizes the core specifications for the CPM2A-40CDR-A:
| Power Supply | 100–240 VAC |
| Digital Inputs | 24 |
| Digital Outputs | 16 (Relay type) |
| Total I/O Points | 40 (expandable to 120) |
| Program Capacity | 2K steps |
| Data Memory | 2K words |
| Communication Port | RS-232C (Peripheral & Programming) |
| Mounting | Panel mount (DIN rail compatible) |
| Dimensions (H×W×D) | 90 × 150 × 55 mm |
| Series | CPM2A |
| RoHS Compliance | Yes |
Typical Applications
- Machine Control: Automated assembly lines, pressing operations, and conveyor systems
- Process Automation: Pump and motor control, fluid dispensing, and packaging machinery
- Position Control: Motion coordination using synchronized pulse outputs for stepper or servo systems
- HVAC & Facilities: Small building automation, temperature monitoring, and facility equipment control
- OEM Integration: Embedded control for machinery manufacturers and system integrators
Compatibility & Replacements
Compatible With
- Omron CX-Programmer software and CX-Supervisor HMI platforms
- Omron expansion I/O modules (CPM1A-20EDR, CPM1A-8ER, etc.)
- Omron analog I/O and temperature sensor expansion modules
- Serial devices and third-party HMIs via RS-232C interface
- DIN rail mounting systems and standard industrial panel enclosures
Replaces / Drop-In Replacement For
The CPM2A-40CDR-A is the direct successor to earlier Omron CP-series micro controllers. Verify compatibility with your system integrator before ordering a replacement unit, as wiring and configuration may differ across generations.
Works With
- Omron CX-Programmer IDE for program development and debugging
- Omron Sysmac Studio for advanced automation projects
- RS-232C serial protocol for device communication
- Standard relay and transistor output modules for I/O expansion
- Omron Programmable Terminals (HMI) via serial link
