Omron CJ1W-ID261 — 64-pt DC24V Input, Fujitsu Connector
SKU: CJ1W-ID261USD 57.00
CJ-series 64-point DC24V digital input unit with 4.1 mA per point, Fujitsu-compatible connector, for CJ1/CJ2 CPUs.
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Product Overview
The Omron CJ1W-ID261 is a 64-point DC24V digital input unit for the CJ-series PLC rack, used with CJ1M, CJ1, and CJ2 CPU units. It carries 64 inputs on a single 31 mm wide slice, drawing about 110 mA at 5 VDC. Wiring lands on a Fujitsu-compatible connector (one connector covers 32 points), so a single 64-pt module replaces two 32-pt blocks. The rated input current is 4.1 mA at 24 VDC, with ON at 15 VDC minimum and OFF at 5 VDC maximum. It is the standard pick for high-density 24 VDC discrete inputs on a CJ rack, where field wiring runs from sensors, push-buttons, limit switches, and relay contacts into the same module.
Choosing between the CJ1W-ID input units
The CJ1W-ID line splits by point count and connector. At 8 points there is the CJ1W-ID201 (terminal block). At 16 points there is the CJ1W-ID211 (terminal block, 12-24 VDC, 7 mA per point). At 32 points there are two connector styles: CJ1W-ID231 (MIL connector) and CJ1W-ID232 (Fujitsu connector). At 64 points there are the CJ1W-ID261 (Fujitsu, static) and CJ1W-ID262 (Fujitsu, dynamic input, faster ON/OFF response). Pick the CJ1W-ID261 when standard static inputs and a Fujitsu-compatible connector are the goal; pick the CJ1W-ID262 when the application needs dynamic input or a faster response time on a 64-pt module.
Mounting and wiring notes
The unit snaps onto the DIN rail on the right side of the CPU, next to the power supply and other CJ modules. Each Fujitsu-compatible connector handles 32 inputs, so two connectors are needed for the 64 points. Use the Omron XW2Z connection cable or third-party Fujitsu FCN-360 / FCN-365 compatible plugs with shielded wiring on long cable runs. Allow 4.1 mA per input for power-supply sizing on the field 24 VDC rail.
Before ordering
Confirm the CPU has a free slot on the CJ rack. The CJ1M-CPU12 / CPU13 supports up to 10 modules per rack. Choose a 64-pt module only when field wiring really is 64 points; otherwise a 32-pt ID231 / ID232 is easier to fault-find. Pair the module with the CJ1W-PA202 (AC) or CJ1W-PD025 (DC) supply based on the cabinet supply.
Key Features
- 64 DC inputs on a single 31 mm wide CJ-series slice
- 24 VDC nominal input, 4.1 mA per point
- Fujitsu-compatible connector (one connector per 32 points)
- ON voltage 15 VDC min., OFF voltage 5 VDC max.
- Compatible with CJ1, CJ1M, and CJ2 CPU racks
- About 110 mA internal current draw at 5 VDC
- Suitable for sensors, push-buttons, limit switches, and relay contacts
- SKU: CJ1W-ID261
- Series: CJ1W basic I/O unit for CJ-series PLCs
- Voltage: 24 VDC
- I/O: 24 I/O
Best-Fit Applications
- High-density 24 VDC input scan on a CJ1M or CJ2 machine controller
- Aggregating 64 limit switches, push-buttons, or proximity sensors per slice
- Automotive body-in-white or transfer line I/O drop
- Conveyor and palletiser I/O landing on a single 31 mm module
- Retrofit of legacy 32-pt blocks where rack space is tight
Buying Checklist
- Choose CJ1W-ID261 for 64-pt static input on a Fujitsu-compatible connector.
- Choose CJ1W-ID262 for 64-pt dynamic / high-speed input at the same count.
- Choose CJ1W-ID231 for a 32-pt MIL-connector version of this I/O class.
- Choose CJ1W-ID232 for a 32-pt Fujitsu-connector version at half the density.
- Choose CJ1W-ID211 for a 16-pt terminal-block version when only a few points are needed.
- Confirm the CPU rack has a free slot and that 24 VDC at 4.1 mA per point is on the field rail.
Technical Specifications
| Series | CJ1W basic I/O unit for CJ-series PLCs |
|---|---|
| Function | Digital input, 64 points, static |
| Input Voltage | 24 VDC nominal (12-24 VDC range) |
| Rated Input Current | 4.1 mA per point at 24 VDC |
| ON Voltage / Current | 15.0 VDC min., 3.0 mA min. |
| OFF Voltage / Current | 5.0 VDC max., 1.0 mA max. |
| ON Response Time | 8.0 ms max. (default), settable to 0/0.5/1/2/4/8/16/32 ms |
| OFF Response Time | 8.0 ms max. (default), settable as above |
| Connection | Fujitsu-compatible connector, one per 32 points |
| Internal Current Draw | 110 mA at 5 VDC |
| Compatible CPUs | CJ1, CJ1M, CJ2 (any CJ-series CPU) |
| Dimensions (W x H x D) | 31 x 90 x 89 mm |
Resources & Downloads
FAQ for CJ1W-ID261
What is the difference between CJ1W-ID261 and CJ1W-ID262?
Both are 64-point DC input units on the same Fujitsu connector pattern. The CJ1W-ID261 is the static-input model with 8 ms default response. The CJ1W-ID262 adds dynamic-input capability and a faster response, which is useful on high-speed counting or indexing lines. Pick ID261 for standard machine I/O; pick ID262 when the application needs the dynamic input feature.
Which connector fits the CJ1W-ID261?
The CJ1W-ID261 uses a Fujitsu-compatible 40-pin connector (one per 32 points). The matching Omron option is the XW2Z series cable, and the field side is normally a Fujitsu FCN-360 or FCN-365 compatible plug. Two connectors are needed for the full 64 inputs. Pre-wired terminal blocks are also available through Omron's XW2B / XW2D lines.
Can the CJ1W-ID261 be used with a CJ2 CPU?
Yes. The CJ1W I/O family is supported on CJ1, CJ1M, and CJ2 CPU racks. Up to three CJ1W expansion racks can be added to a CJ2 system, and the I/O tables in CX-Programmer / Sysmac Studio register CJ1W-ID261 modules automatically. The unit draws 110 mA at 5 VDC from the rack.
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