Part of the Omron CP-Series Compact PLCs series — see the full model table, lifecycle status and replacement parts.
Omron CP1W-40EDT — 40 pt I/O Expansion, NPN Sink
SKU: CP1W-40EDTUSD 70.00
CP-series expansion unit with 24 DC inputs and 16 NPN transistor (sinking) outputs for CP1E, CP1L, CP1H CPUs.
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Product Overview
The Omron CP1W-40EDT is a 40-point digital I/O expansion unit for the CP1E, CP1L, and CP1H compact PLC families. manufactured by Omron Corporation. Hengyixin Automation stocks this I/O expansion unit in Xiamen and ships within 3-5 business days to most Asian, European, and North American ports.
It adds 24 DC inputs and 16 transistor (sinking, NPN) outputs to a CP-series CPU, with a removable terminal block for the I/O wiring and a flat cable that plugs into the right side of the CPU. It is the standard pick when a CP1L or CP1H needs more machine-side I/O than the CPU provides on its own, and the load devices are DC solenoids, relays, or indicator lamps that can be driven by a sinking output.
Add a CP1W-CN811 I/O connection cable only when the unit is mounted away from the CPU rack.
Key Features
- NPN (sinking) transistor outputs at 0.3 A per point
- 24 VDC field power drawn from the CP-series expansion bus
- 40-point digital I/O expansion (24 DC inputs, 16 NPN outputs)
- Part of the CP1W I/O family shared across CP1 PLC lines
- SKU: CP1W-40EDT
- Series: CP1W expansion I/O for CP-series PLCs
- I/O: 40 I/O
Best-Fit Applications
- Extending a CP1H system to support more conveyors or station sensors
- Expanding the I/O of a CP1E N-series CPU for an OEM skid build
- Adding I/O to a CP1L or CP1H CPU at the end of a machine line
Buying Checklist
- Choose CP1W-40EDT1 for PNP (sourcing) outputs at the same I/O count.
- Choose CP1W-40EDR for relay outputs when driving AC or mixed-voltage loads.
- Choose CP1W-40EDT for NPN (sinking) outputs on a CP1E, CP1L, or CP1H CPU.
Technical Specifications
| Series | CP1W expansion I/O for CP-series PLCs |
|---|---|
| Total I/O Points | 40 (24 inputs, 16 outputs) |
| Input Type | 24 VDC sinking/sourcing, 16 mA at 24 VDC |
| Output Type | NPN transistor, sinking (open collector) |
| Output Rating | 0.3 A per point, 4.5-30 VDC load |
| Leakage / Residual | 0.1 mA max. leakage, 1.5 V max. residual |
| Compatible CPUs | CP1E, CP1L, CP1H |
| Connection | Removable terminal block; flat cable to CPU |
| Field Supply | 24 VDC via CP-series expansion bus |
| Mounting | DIN rail (35 mm) or M4 screw panel mount |
| Operating Temperature | 0 to +55 °C |
| Certifications | UL, cUL, CE, C-Tick, KC |
FAQ for CP1W-40EDT
What is the difference between CP1W-40EDT and CP1W-40EDT1?
Both are 40-point (24 in / 16 out) CP-series expansions with the same wiring footprint. CP1W-40EDT has NPN (sinking) transistor outputs, and CP1W-40EDT1 has PNP (sourcing) transistor outputs. Pick the variant that matches the field device wiring at the terminal block.
Can the CP1W-40EDT be used with a CP1L or CP1H CPU?
Yes. The CP1W-40EDT is part of the shared CP1W I/O family and is supported by CP1E, CP1L, and CP1H CPUs. It plugs into the right-side expansion port of the CPU and is registered automatically in the CX-Programmer I/O table.
What cable connects the CP1W-40EDT to a remote CPU rack?
For a remote-mounted expansion, use a CP1W-CN811 I/O connection cable. The standard length is 0.1 m for side-by-side mounting on the same DIN rail. Add the longer cable only when the expansion has to sit away from the CPU.
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