The Omron C40P-CDR-A, also cataloged as the C40P-CDR-A Programmable Controller, operates as a dedicated hardware component for discrete logical processing and I/O execution within Sysmac C Series automation architectures. This compact PLC integration platform processes physical digital input signals and drives relay outputs directly based on user-programmed ladder logic instructions stored in non-volatile memory.

Technical Identifier Matrix

• Base Model: C40P-CDR-A
• Brand: Omron
• Series: Sysmac C Series (C40P)
• UNSPSC Code: 32000000
• ASIN: B00TU9D37E
• Hardware Profile: 40 I/O Programmable Logic Controller with Relay Outputs

Hardware Specifications

Backplane Determinism and I/O Density Scaling

The Omron C40P-CDR-A utilizes the dedicated Sysmac backplane architecture to ensure low-latency internal bus communication between the central processing unit, internal registers, and field I/O circuitry. High-density board layout enables 24 DC inputs and 16 contact relay outputs within a compact footprint. Field-side optical isolation protects internal CMOS logic from external voltage transients and ground loops. Deterministic scanning cycles allow real-time monitoring and exact execution timings for high-speed industrial applications, while firmware flash stability ensures consistent program execution without memory corruption during power cycles.

Package Contents & Ordering Information

• 1x Omron C40P-CDR-A Programmable Controller Unit
• 1x Removable Terminal Block Cover Assembly
• 1x Product Documentation and Installation Guide

Field Installation Guidelines

• Mounting: Install on a standard 35 mm DIN rail or utilize direct surface mounting screws within an IP54-rated industrial enclosure to prevent dust and conductive particle ingress.
• Wiring: Wire field devices using copper conductors rated for at least 75 deg C. Ensure 24 VDC input lines are routed separately from high-voltage AC output lines to mitigate inductive coupling.
• Grounding: Connect the functional ground (FG) terminal directly to a low-impedance earth ground using a minimum 2.0 mm sq braid or wire. Ensure ground resistance remains below 100 ohms.
• Shielding: Use 360-deg braid-shielded twisted pair cables for signal expansion connections and cap unused interface ports to prevent electrostatic discharge.

Frequently Asked Questions

• What is the supply voltage requirement for the Omron C40P-CDR-A?

  The unit operates on an input line voltage ranging from 100 to 240 VAC at 50/60 Hz without requiring manual jumper reconfiguration.

• How many total I/O points are integrated on the C40P-CDR-A base unit?

  The controller provides 40 onboard I/O points, divided into 24 DC digital inputs and 16 relay contact outputs.

• What is the current switching rating for the relay contact outputs?

  Each relay output point supports a maximum current load of 2 A at 250 VAC or 24 VDC for resistive loads.

• Does the unit support program memory retention during power outages?

  Yes, ladder logic programs and system data are retained via an internal lithium battery, with support for EEPROM memory cassettes.

• What operating temperature range is permitted for field deployment?

  The ambient operating temperature must be maintained between 0 and 55 deg C without condensing moisture.

• How are field I/O connections physically terminated on the controller?

  Connections are made via heavy-duty screw terminal blocks located on the front face of the controller unit.

• Does the C40P-CDR-A feature electrical isolation between inputs and CPU?

  Yes, digital input channels utilize optocouplers to provide galvanic isolation between field circuitry and internal logic circuitry.

• Can the C40P-CDR-A be mounted on standard DIN rails?

  Yes, the base enclosure features an integrated 35 mm DIN rail mounting clip along with direct screw-mount chassis holes.