The Omron CP1H-XA40DR-A, also cataloged as the CP1H-XA40DR-A CPU Unit, operates as a dedicated hardware component for multi-channel analog signal processing, high-speed pulse counting, and discrete relay execution within Omron CP1H automation control architectures.

Technical Identifier Matrix

• Series Prefix (CP1H): High-speed compact programmable controller platform
• Class Identifier (XA): Built-in analog I/O terminals (4 inputs, 2 outputs)
• I/O Capacity Code (40): 40 total built-in discrete I/O points (24 inputs, 16 outputs)
• Input Type (D): 24 VDC discrete inputs
• Output Type (R): Electromechanical relay outputs
• Power Supply (A): 100 to 240 VAC power supply input

Hardware Specifications

PLC Determinism and Backplane Bus Velocity

The Omron CP1H-XA40DR-A integrates a high-speed CPU core engineered for deterministic ladder processing, high-density analog conversions, and local bus synchronization. Built-in analog channels convert 0-10 V and 4-20 mA signals directly into internal CPU memory registers without relying on external expansion bus refresh cycles.

For extended system topologies, the controller supports CP1W expansion units and CJ-series special I/O modules via a bus expansion adapter. Internal backplane bus velocity ensures predictable I/O refresh cycles across connected expansion units, maintaining deterministic cycle execution during simultaneous 4-axis 100 kHz high-speed counter updates and serial port communication operations.

Package Contents & Ordering Information

• 1x Omron CP1H-XA40DR-A CPU Unit
• 1x Removable Screw Terminal Block Assembly
• 1x Hardware Installation Sheet

Field Installation Guidelines

• DIN-Rail Mounting: Mount the unit on a standard 35 mm DIN rail (PFP-50N/PFP-100N). Maintain 50 mm clearance above and below the chassis for ventilation.
• AC Power Wiring: Connect 100 to 240 VAC line power to terminals L1 and L2/N using copper conductors. Tighten terminal screws to a torque of 0.5 N-m.
• Analog Signal Wiring: Use twisted shielded-pair cable for all 0-10 V and 4-20 mA analog connections. Keep analog signal cabling separated from high-voltage AC lines.
• Grounding Setup: Connect the protective earth (PE) terminal to ground using an isolated grounding conductor with an impedance under 100 ohms.
• Shielding Termination: Ground all analog and high-speed counter cable shields at a single point using a 360-deg braid grounding clamp.

Frequently Asked Questions

• What analog I/O points are built directly into the CP1H-XA40DR-A CPU base?

  The CPU base unit incorporates 4 analog inputs and 2 analog outputs supporting multi-range voltage and current signals.

• What output switching mechanism is utilized on this specific chassis?

  The CP1H-XA40DR-A features 16 electromechanical relay outputs capable of switching AC and DC load currents.

• What high-speed counting frequency is supported by the CPU inputs?

  The CPU provides 4 axes of high-speed counter inputs operating at frequencies up to 100 kHz.

• What power supply voltage is required to operate the main processor unit?

  The processor operates on an internal wide-range AC power supply accepting 100 to 240 VAC at 50/60 Hz.

• How many user program steps can be stored in the controller memory?

  The controller provides an internal memory capacity of 20K steps for ladder logic programs.

• Can CJ-series expansion modules be attached to this CP1H processor?

  Yes, CJ-series special I/O and CPU bus units can be attached using a dedicated CJ-series expansion adapter.

• How should cable shields be landed on field wiring terminals?

  Signal cable shields must be landed at a single grounding point using a 360-deg braid clamp connected to PE ground.

• What is the total discrete I/O count provided on the CPU terminal blocks?

  The CPU unit integrates 40 discrete I/O points, configured as 24 DC inputs and 16 relay outputs.