Part of the Omron NX-Series Safety & I/O series — see the full model table, lifecycle status and replacement parts.
Omron NX1W-CIF01 — NX1 RS-232C Option Board
SKU: NX1W-CIF01USD 13.50
Omron NX1W-CIF01 NX1 RS-232C option board, 15 m, Host Link + Modbus-RTU. In stock, China shipping.
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Product Overview
The Omron NX1W-CIF01 is a serial communications option board for the NX1P2-series compact PLC, manufactured by Omron Corporation. Hengyixin Automation stocks this controller in Xiamen and ships within 3-5 business days to most Asian, European, and North American ports.
The board adds one RS-232C port on a 9-terminal screwless clamping terminal block to an NX1P2 CPU. Maximum cable run is 15 m. Baud rates cover 1.2, 2.4, 4.8, 9.6, 19.2, 38.4, 57.6, and 115.2 kbps on a half-duplex, start-stop synchronized link. Supported protocols are Host Link (SYSMAC WAY), Modbus-RTU master, and no-protocol.
The board drops into Option Board Slot 1 (left) or Slot 2 (right) of any NX1P2 CPU unit. Power draw is counted against the host CPU's total. There is no 5 V supply terminal, so the NX1W-CIF01 cannot drive an external CJ1W-CIF11 or NT-AL001 converter. For RS-422A/485 use the NX1W-CIF11 (non-isolated, 50 m) or NX1W-CIF12 (isolated, 50 m). Programming is in Sysmac Studio.
Key Features
- NX1 series serial communications option board, 1 RS-232C port on a 9-terminal screwless clamping terminal block
- Half-duplex start-stop synchronization, 15 m max, 1.2 to 115.2 kbps baud rates, no 5 V output
- Host Link (SYSMAC WAY), Modbus-RTU master, and no-protocol communication on the NX1P2 option-board slot
- Fits NX1P2 Slot 1 (left) or Slot 2 (right); 35.9 x 35.9 x 13.5 mm, 16 g, no isolation
- SKU: NX1W-CIF01
- Series: Omron NX1W series option board (for NX1P2 compact PLC CPU)
Best-Fit Applications
- Barcode reader integration on a small conveyor where the NX1P2 needs an RS-232C port to read 1D codes at the infeed station
- Serial temperature controller polling where the NX1W-CIF01 hosts Modbus-RTU master to scan four E5CC controllers every 250 ms
- Spare replacement on a legacy machine where the built-in RS-232C on the NX1P2 is already used for the touch panel HMI
Buying Checklist
- Pick the NX1W-CIF01 for a single RS-232C port on an NX1P2 compact PLC at 15 m or less, with no isolation required.
- Pick the NX1W-CIF11 instead when the device uses RS-422A/485 and runs up to 50 m on non-isolated wiring.
- Pick the NX1W-CIF12 instead when the cabinet needs isolated RS-422A/485 to break ground loops between the PLC and field devices.
Technical Specifications
| Manufacturer | Omron Corporation (Japan) |
|---|---|
| Series | Omron NX1W series option board (for NX1P2 compact PLC CPU) |
| Model / SKU | NX1W-CIF01 |
| Communication Port | 1 x RS-232C, D-sub / 9-terminal screwless clamping terminal block |
| Communication Method | Half-duplex, start-stop synchronization |
| Baud Rate | 1.2 / 2.4 / 4.8 / 9.6 / 19.2 / 38.4 / 57.6 / 115.2 kbps |
| Maximum Cable Length | 15 m |
| Supported Protocols | Host Link (SYSMAC WAY), Modbus-RTU master, no-protocol |
| Applicable Wire Size | AWG 28 to 20 |
| Isolation | No isolation between RS-232C line and ground (terminals isolated from CPU internal circuits only) |
| Dimensions / Weight | 35.9 (W) x 35.9 (H) x 13.5 (D) mm, 16 g |
| Power / Environment | Drawn from NX1P2 CPU power budget (no separate supply), 0 to 55 C operating |
FAQ for NX1W-CIF01
What is the Omron NX1W-CIF01 used for?
It is a serial communications option board for the NX1P2 compact PLC. The single RS-232C port is used to connect barcode readers, serial temperature controllers, or other legacy serial field devices that do not require isolation.
NX1W-CIF01 vs NX1W-CIF11 - what is the difference?
The NX1W-CIF01 is RS-232C with a 15 m max cable. The NX1W-CIF11 is non-isolated RS-422A/485 with a 50 m max cable. Pick the 232C for short point-to-point serial and the 11 for multi-drop RS-485 networks.
Is the NX1W-CIF01 isolated?
No. The terminals are isolated from the CPU internal circuits, but the RS-232C line itself shares ground with the CPU. For an isolated option use the NX1W-CIF12 (isolated RS-422A/485).
Which NX1P2 slot fits the NX1W-CIF01?
Option Board Slot 1 (left) or Slot 2 (right) on any NX1P2 CPU unit. Up to two option boards can be installed in parallel, so a second serial port is possible with the NX1P2's two slots.
Can the NX1W-CIF01 supply 5 V to a downstream converter?
No. There is no 5 V output terminal on the NX1W-CIF01, so it cannot drive an external CJ1W-CIF11 / NT-AL001 RS-232C-to-RS-485 converter or NV3W-M[]20L PT.
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