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Explanation for suffix-SC: -SC stands for Special Customer, a custom-made version. Its hardware is identical to the standard model CP1H-XA40DT-D, only factory firmware/parameters are customized. Programs, wiring and expansions are fully compatible for direct replacement. No official public datasheet is available for-SC variant. Prioritize CP1H-XA40DT-D for procurement and spare-part replacement.
Model Decoding
| Field | Description |
| CP1H | CPU unit of CP‑series high‑performance compact PLC |
| XA | Variant with built‑in analog I/O (4AI+2AO) |
| 40 | Total 40 local I/O points: 24 inputs /16 outputs |
| DT | Transistor sink (NPN) output |
| D | DC24V power supply |
| ‑SC | Special‑customer custom suffix, no hardware modification |
Core Hardware Specifications
Power Supply: DC24V (allowable range: 20.4-26.4V), max power consumption ≤50 W
Digital I/O: 24-point DC24V inputs; 16-point NPN sink transistor outputs, 0.3 A per point. Supports 4-axis pulse output (1-100 kHz) and 2-channel PWM output.
Built-in Analog I/O: 4 analog inputs, 2 analog outputs, non-isolated. Voltage/current signals. Channel address: AI CH200-CH203, AO CH210-CH211
Program Capacity: 20 K steps; Data memory: 32 K words; Basic instruction execution time: 0.1 μs
High-speed Counter: 4 axes; 100 kHz for single-phase, 50 kHz for phase-difference input; 32-bit counter, supports comparison interrupts
Expansion Capability: Max.7 CP1W I/O expansion units; Max.2 CJ-series high-function units; Max.system I/O: 320 points
Communication: On-board USB programming port; supports up to 2 communication option boards (RS232/485/Ethernet); built-in real-time clock, battery-backed memory
Software: CX-Programmer / CX-One; supports Ladder Diagram, ST Structured Text, Function Blocks (FB)
Built-in Analog Specifications
AI: 0-10 V /1-5 V /0-20 mA /4-20 mA; Resolution 1/6000; non-isolated
AO: 0-10 V /-10~+10 V /0-20 mA; Resolution 1/6000; non-isolated
Key Notes
- -SC variant is not documented in Omron public manuals. Hardware is fully equivalent to CP1H-XA40DT-D. Spare-part replacement with standard model requires no program modification.
- On-board analog channels are non-electrically-isolated. External isolators are recommended for heavy-interference field environments.
- CP1H series is discontinued. New projects refer to CP2E series. Spare-part maintenance relies on stock / used CP1H-XA40DT-D.
- Output type is NPN sink. Select CP1H-XA40DT1-D for PNP source output.
Common Option Parts
CP1W-CIF01: RS-232C option board
CP1W-CIF11: RS-422/485 option board
CP1W-ME05M: Memory cartridge
CP1W-BAT01: PLC backup battery
OMRON CP1H-XA40DT-D-SC Full Detailed Specifications
-SC Description: SC = Special Customer custom version. Hardware is identical to standard CP1H-XA40DT-D. Only factory preset firmware / parameters differ. No official manual for-SC. Use CP1H-XA40DT-D for direct spare-part replacement, fully compatible for wiring, expansion and user programs.
Model Decoding
| Field | Description |
| CP1H | CP‑series high‑performance compact PLC CPU unit |
| XA | Built‑in 4AI+2AO analog I/O |
| 40 | Total 40 local I/O points |
| DT | Transistor sink (NPN) output |
| D | DC24V power supply |
| ‑SC | Special‑customer custom suffix, no hardware change |
Power Supply Ratings
| Item | Specification |
| Supply Voltage | DC24V, allowable range 20.4‑26.4V; 21.6‑26.4V when more than 4 expansion units are connected |
| Max Power Consumption | ≤50 W |
| Power Hold‑up Time | ≥2 ms |
| Inrush Current | ≤30 A (cold start, within 20 ms) |
On-board Digital I/O
Inputs: 24-point DC24V, compatible with NPN / PNP sensors
Outputs: 16-point NPN sink transistor outputs, 0.3 A per point for resistive loads
Multiplexed output terminals: 4-axis pulse output, 2-channel PWM output
Input interrupt: 8-channel input interrupt; minimum pulse capture width: 50 μs
Pulse Motion Control
| Item | Specification |
| Pulse Output Axes | 4 axes, 1‑100 kHz; Pulse+Direction / CW‑CCW modes; Trapezoidal / S‑curve acceleration‑deceleration |
| PWM Output | 2 channels, 0.1‑6553.5 Hz, duty cycle 0.0‑100.0%, resolution 0.1% |
| High‑speed Counter | 4 axes; single‑phase 100 kHz, ×4 phase‑difference 50 kHz; 32‑bit count; target‑value / zone comparison interrupt; linear / ring counting modes |
Built-in Analog I/O (Non-Isolated)
Channel address: AI CH200~CH203; AO CH210~CH211
CPU Performance & Memory
| Item | Specification |
| Program Capacity | 20 K steps |
| Data Memory | 32 K words D0‑D32767 |
| Basic Instruction Speed | 0.1 μs per instruction; application instruction ≥0.15 μs |
| Task Configuration | 32 cyclic tasks, 256 interrupt tasks, 1 scheduled interrupt |
| Programming Languages | Ladder Diagram, ST Structured Text, Function Blocks FB; max.128 FB definitions, 256 instances |
| Max Total System I/O | 320 points (local 40 + expansion) |
| Expansion Capacity | Up to7 CP1W I/O units; Up to2 CJ‑series high‑function units |
| Memory Backup | Flash memory for programs & parameters; battery‑backed keep relays, DM memory and counters; battery life: 5 years @25℃, part No. CP1W‑BAT01 |
| Memory Cartridge | Supports CP1W‑ME05M for program backup & power‑on auto‑run |
| Real‑time Clock | Built‑in calendar clock; monthly deviation ±2 min @25℃; battery‑maintained clock operation |
Communication Interfaces
- On-board USB1.1 programming port (only for program upload/download, not for user-application communication)
- Up to 2 communication option boards:
CP1W-CIF01: RS232C
CP1W-CIF11: RS422/485
Ethernet option board; supports Modbus-RTU, PLC-Link and other protocols
Environmental & Mechanical Ratings
| Item | Specification |
| Operating Temperature | 0~+55 ℃ |
| Storage Temperature | ‑20~+75 ℃ (battery excluded) |
| Humidity | 10‑90 %RH, non‑condensing, no corrosive gas |
| Vibration Resistance | 10‑150 Hz, X/Y/Z axes, compliant with JIS C60068‑2‑6 |
| Shock Resistance | 147 m/s², 3 shocks per X/Y/Z axis; JIS C60068‑2‑27 |
| Dimensions | 150 mm × 110 mm × 85 mm; DIN‑rail mounting / panel mounting |
| Weight | Approx.590 g |
Software Support
Programming software: CX-Programmer (CX-One suite), Version V6.11 or higher for CP1H-XA series.
Version & Replacement Information
- CP1H series is end-of-life. New-project recommended replacement: CP2E-XA. For maintenance spare parts, use stock / used CP1H-XA40DT-D (direct replacement for-SC).
- PNP source-output variant: CP1H-XA40DT1-D; Relay-output variant: CP1H-XA40DR-A.
Key Notes
- -SC has no public documentation. Hardware is fully equivalent to CP1H-XA40DT-D. No wiring or program modification required for replacement. Verify whether custom special parameters need re-downloading.
- Built-in analog channels are non-isolated. Signal isolators shall be added for heavy-noise operating conditions.
- Sufficient power rating for DC24V power supply; supply voltage shall not drop below 21.6 V when multiple expansion units are installed.
OMRON CP1H-XA40DT-D-SC Programming Software
The-SC custom variant uses exactly the same software as standard CP1H-XA40DT-D; no dedicated special software version exists.
Main Programming Software: CX-Programmer
- Minimum version requirement: V6.1 or newer. Field-commonly used versions: V9.0 / V9.3 / V9.6 (bundled within CX-One suite).
- Supported programming languages: Ladder Diagram, ST Structured Text, Function Blocks FB.
- Integrated CX-Simulator simulation: offline program simulation without physical hardware for logic, analog and pulse motion debugging.
Software Packages
- CX-One Ver4 (Full Edition)
Complete tool suite including CX-Programmer, simulator, driver debugging and network configuration tools, for full-scale project development.
- CX-One Lite Ver4 (Light-weight Edition)
Compact installation containing only tools for compact PLCs, for CP1E/CP1L/CP1H series only. CX-One and CX-One Lite cannot be installed on the same PC simultaneously.
❗Important: CX-Programmer3 (new-generation Omron software) does NOT support CP1H series. CP1H is legacy hardware; only CX-Programmer V9 releases are applicable. Do not install CX-Programmer3.
PC-PLC Connection Methods
- On-board USB port (most common): Standard USB A-to-B printer cable, direct PC connection, no option board required. PLC side uses USB-B connector.
- Serial port: Requires option board `CP1W-CIF01(RS232)` / `CP1W-CIF11(RS485)` plus serial programming cable.
- Ethernet: Install Ethernet option board `CP1W-CIF41` for program download & monitoring over Ethernet cable.
OS Compatibility
Recommended OS: Windows7 / Windows10. Windows11 supports V9.6; compatibility mode may be required on some PCs.
Engineering Tips
- When creating a new project, select CPU model CP1H-XA40DT-D directly. Do not select-SC. No-SC model entry exists in software because hardware is identical.
- Program upload/download, monitoring, analog configuration and 4-axis pulse motion work exactly the same as standard CP1H-XA40DT-D.
- Downloading user programs will not overwrite the-SC custom factory firmware; only user application program is modified.
