The Omron CP1H-X40DR-A, also cataloged as the CP1H-X CPU Units, operates as a dedicated hardware component for discrete signal processing, high-speed pulse count evaluation, and step-control logic execution within CP1H Series PLC network architectures. It manages 24 VDC discrete inputs, processes internal program ladder sequences, and controls 16 electromechanical relay output channels without intermediate power interface drivers.

Designation Matrix & Nomenclature Breakdown

• CP1H: Base programmable logic controller product series designation.
• X: High-speed CPU module processing core equipped with built-in 4-axis 100 kHz pulse processing circuits.
• 40: Total integrated input and output point density (24 inputs / 16 outputs).
• D: Direct-current (DC) voltage configuration for field inputs.
• R: Electromechanical relay contact output circuit module.
• A: Alternating-current (AC) main line power supply unit input rating (100 to 240 VAC).

Physical & Electrical Performance Specifications

Deterministic Architecture & High-Speed Processing Characteristics

The internal processing logic relies on dedicated high-speed interrupt inputs and high-frequency pulse counters running at up to 100 kHz across 4 independent axes. The internal backplane bus communication velocity handles dynamic memory exchanges between the CPU core and connected CJ-series expansion I/O units, maintaining deterministic program execution cycles. Firmware flash compatibility ensures persistent program retention in EEPROM memory storage, preventing memory corruption caused by sustained power interruption or field line voltage fluctuations.

Package Contents & Scope of Delivery

• 1 x Omron CP1H-X40DR-A CPU Unit
• 1 x Removable Terminal Block Set (pre-installed)
• 1 x Hardware Instruction Sheet

Mounting Requirements & Field Wiring Standards

• Mount the unit onto a standard 35 mm DIN-rail in a horizontal orientation to ensure passive thermal heat sink dissipation through top vents.
• Maintain a minimum vertical clearance of 20 mm above and below adjacent wire ducts or module chassis to avoid thermal buildup.
• Earth ground wire connection must be made directly to the functional ground terminal using a line gauge of 2 mm sq or larger with an impedance below 100 ohms.
• Separate high-voltage AC mains wiring from low-voltage 24 VDC input lines and communications lines to prevent inductive noise interference.
• Crimp spade or ring terminals onto all stranded wire leads before torquing down terminal block screws to 0.5 N m.

Hardware Operational FAQ

• What happens if the supply voltage drops below the minimum AC threshold?

  The power supply monitoring circuit trips, halting PLC program execution and driving all relay output contacts to an open fail-safe condition.

• Can CJ-series I/O units connect directly to this CPU base unit?

  Yes, the CPU supports up to 7 CJ-series I/O modules using the right-side expansion bus connector system without requiring an external interface module.

• How are the 100 kHz high-speed counters allocated across the field input terminals?

  Inputs IN00 through IN03 function as high-speed counter phase inputs or interrupt processing terminals when configured via the CPU system setup settings.

• What is the electrical switching limit for the integrated relay output contacts?

  Each relay output channel supports up to 2 A at 250 VAC or 2 A at 30 VDC, with a maximum common terminal capacity of 8 A.

• Is battery power required to retain user program memory during main AC outage?

  User program code and system parameter settings are written to non-volatile flash memory, but battery backup is required to retain real-time clock data and hold-type data memory registers.

• What cable interface is needed to establish direct online communications with software?

  A standard USB 2.0 or 1.1 Type-A to Type-B cable connects directly between the programming computer and the CPU peripheral USB terminal port.

• How does the unit react to an internal I/O bus communication line failure?

  The ERR/ALM status LED illuminates red, execution halts, and all output circuits immediately drop to an open-circuit state.

• Are analog signals directly supported on the CP1H-X40DR-A base CPU module terminals?

  No, the CP1H-X variants handle high-speed digital processing and require optional CP1W or CJ-series analog modules for 4-20 mA or 0-10 V signals.