The Omron CPM1A-20CDT-A-V1 serves as the primary CPM1A PLC Controller utilized to execute discrete logic processing and pulse counting across standalone automated control platforms.

Model Code & Architecture Configuration

• CPM1A: Compact micro PLC system platform with integrated CPU and I/O.
• 20: Total onboard digital I/O point count (12 inputs and 8 outputs).
• C: CPU unit with built-in power supply and processing engine.
• D: 24 VDC digital input logic interface.
• T: Transistor sinking output switching configuration.
• A: AC line power supply interface (85 to 264 VAC).
• V1: Version standard supporting enhanced instruction functions.

Core Electrical & Processing Specifications

System Execution & Memory Throughput

The internal CPU manages execution cycles with logic instruction speeds from 0.72 us to 1.72 us. Direct internal memory mapping allows backplane bus communication velocity synchronization with onboard high-speed pulse inputs up to 5 kHz and pulse outputs up to 2 kHz, maintaining firmware flash compatibility across standard CPM1A programming tools.

Unit Package Contents

• 1 x Omron CPM1A-20CDT-A-V1 Micro PLC Unit

Hardware Mounting & Field Wiring Protocols

Mounting Structure

Secure the unit directly onto a standard 35 mm DIN rail or surface-mount using M4 screws through the integrated panel mounting holes. Maintain 10 mm vertical clearance for adequate convection cooling.

AC Line Power Termination

Wire the line voltage across the AC power terminals within the rated 85 to 264 VAC range. Connect functional earth ground directly to the dedicated protective terminal using a short, low-impedance conductor.

Transistor Output Circuit Wiring

Wire field loads to the transistor sinking outputs using an external 24 VDC power source. Ensure load currents stay within hardware thermal limits and connect protective freewheeling diodes across inductive loads.

Frequently Asked Questions

• What is the instruction execution speed of the CPM1A-20CDT-A-V1?

  Basic instructions execute within a timing window of 0.72 us to 1.72 us depending on the instruction type.

• How many total I/O points are built into this CPU unit?

  The controller provides 20 total onboard I/O points, configured as 12 digital inputs and 8 transistor outputs.

• Does the CPM1A-20CDT-A-V1 support expansion I/O modules?

  No, hardware expansion is not supported on this 20-point micro CPU unit model.

• What high-speed signal processing features are integrated?

  The unit includes 1 high-speed encoder input channel rated up to 5 kHz and 1 pulse output channel up to 2 kHz.

• What power supply voltage range does the unit require?

  The integrated power supply accepts nominal AC input line voltages ranging from 85 VAC to 264 VAC.

• What output switching logic type is utilized by the digital outputs?

  The 8 digital outputs feature solid-state transistor switching configured for NPN sinking operation.

• What is the memory capacity for programs and data storage?

  The controller provides 2 kWords of user program capacity and 1 kWord of internal data memory space.

• What are the physical housing dimensions of this controller?

  The unit measures 90 mm high by 86 mm wide by 70 mm deep in physical outer dimensions.