Part of the Omron NX-Series Safety & I/O series — see the full model table, lifecycle status and replacement parts.
Omron NX-CIF210 — NX 2-Port RS-232C Comm, 30 mm
SKU: NX-CIF210USD 195.00
Omron NX-CIF210 NX-series 2-port RS-232C serial communication interface unit, 9-pin D-sub, 230.4 kbps. In stock, China shipping.
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Product Overview
The Omron NX-CIF210 is the NX-series 2-port RS-232C communications interface unit, manufactured by Omron Corporation. Hengyixin Automation stocks this controller option board in Xiamen and ships within 3-5 business days to most Asian, European, and North American ports. Specifications on this page were checked against Omron's NX-series Communications Interface Unit datasheet.
It plugs into the NX I/O bus behind an NX-ECC201 EtherCouCoupler, NX102, or NX1P2 CPU and gives two independent RS-232C ports on 9-pin D-sub connectors. No-protocol mode (NOT Modbus-RTU / Host Link - those are NX-CIF101). Baud rate 1,200 to 230,400 bps; 7 or 8 data bits; even, odd, or no parity; 1 or 2 stop bits. Flow control none, RS-CS, or Xon-Xoff. Maximum communications distance 15 m.
Free-Run refreshing only; PDO data size 4 to 80 bytes in/out. Power consumption 1.15 W on CPU, 0.95 W on Coupler. No isolation. The slice is 30 mm wide, 100 x 77 mm, 91 g. For Modbus-RTU and Host Link on two ports of RS-232C/422A/485 pick NX-CIF101.
Key Features
- NX-series Communications Interface Unit with 2 RS-232C ports on 9-pin D-sub connectors, no-protocol mode only
- Baud rate 1,200 to 230,400 bps, 7 or 8 data bits, even/odd/none parity, 1 or 2 stop bits, RS-CS or Xon-Xoff flow control
- Free-Run refreshing only, PDO data size 4 to 80 bytes in/out, 1:1 connection, 15 m max cable
- NX unit power 1.15 W on CPU / 0.95 W on Coupler, 30 x 100 x 77 mm, 91 g, no isolation, SIL None
- SKU: NX-CIF210
- Series: NX-series Communications Interface Unit (NX-CIF family) on NX I/O Bus and EtherCAT Coupler
Best-Fit Applications
- Connecting a barcode reader and a serial printer to an NX102-1200 over the NX I/O bus, each on its own RS-232C port
- Receiving ASCII strings from a lab balance or pH meter into an NX1P2-9024DT over no-protocol RS-232C at 9,600 bps
- Spare replacement on a small machine where the original NX-CIF210 was lost and Sysmac Studio holds the serial port configuration
Buying Checklist
- Pick the NX-CIF210 when the project needs two RS-232C ports in no-protocol mode on a 30 mm wide NX I/O slice.
- Pick the NX-CIF101 instead when the two ports need Modbus-RTU / Host Link on RS-232C / RS-422A / RS-485 instead of no-protocol.
- Pick the NX-ILM400 instead when the field devices are IO-Link sensors and the master needs to scan them on EtherCAT.
Technical Specifications
| Manufacturer | Omron Corporation (Japan) |
|---|---|
| Series | NX-series Communications Interface Unit (NX-CIF family) on NX I/O Bus and EtherCAT Coupler |
| Model / SKU | NX-CIF210 |
| Number of Ports | 2 RS-232C ports (independent); NX-CIF101 is the 1-port RS-232C unit, NX-CIF105 the RS-422A/485 unit |
| Connector | 9-pin D-sub connector (male) per port |
| Communications Protocol | No-protocol mode (full duplex); not Modbus-RTU / Host Link (the single-port RS-232C no-protocol unit is NX-CIF101; RS-422A/485 is the NX-CIF105) |
| Baud Rate | 1,200 / 2,400 / 4,800 / 9,600 / 19,200 / 38,400 / 57,600 / 115,200 / 230,400 bps |
| Data Format | Data length 7 or 8 bits; parity even / odd / none; stop bits 1 or 2 |
| Flow Control | None / RS-CS / Xon-Xoff; flow control target send-receive / send only / receive only |
| Refreshing | Free-Run refreshing only; PDO data size 4 to 80 bytes in/out; maximum communications distance 15 m; 1:1 connection only |
| Isolation / Power | No isolation; power consumption 1.15 W on CPU, 0.95 W on Coupler; transmission buffering enabled/disabled in Unit settings |
| Dimensions / Approvals | 30 (W) x 100 (H) x 77 (D) mm; 91 g; IP20; SIL None; CE, cULus (Class I Div 2), RCM, KC, NK, EAC |
Manufacturer documentation
Omron's own product page, where the manufacturer's current specification and lifecycle information are published. We are an independent distributor and cannot mirror those documents; the link goes to Omron's site.
FAQ for NX-CIF210
What is the Omron NX-CIF210 used for?
It is the NX-series 2-port RS-232C communications interface unit for the NX I/O bus. Typical uses are connecting a barcode reader and a serial printer, receiving ASCII strings from a lab balance or pH meter, and spare replacement on a small machine where Sysmac Studio holds the serial port configuration.
NX-CIF210 vs NX-CIF101 - what is the difference?
Both are NX-series communications interface units with two ports. The NX-CIF210 has two RS-232C ports in no-protocol mode only. The NX-CIF101 has two RS-232C ports that can each be set to RS-232C / RS-422A / RS-485 and that support Modbus-RTU master/slave and Host Link in addition to no-protocol. Pick the NX-CIF210 for barcode readers, printers, and lab instruments on no-protocol ASCII; pick the NX-CIF101 when the field devices need Modbus-RTU.
What is the maximum baud rate on the NX-CIF210?
230,400 bps. The serial setting covers 1,200 / 2,400 / 4,800 / 9,600 / 19,200 / 38,400 / 57,600 / 115,200 / 230,400 bps. Maximum cable distance is 15 m. For longer runs or 115,200 bps plus, drop to 38,400 bps or move to RS-422A / RS-485 on an NX-CIF101.
Does the NX-CIF210 have galvanic isolation?
No. The NX-CIF210 spec page lists "No isolation" under isolation method. For RS-232C in most factory panels this is fine because RS-232C is single-ended and short-distance. For long cable runs in a noisy cabinet, add an external RS-232C isolator or switch to RS-422A / RS-485 on an NX-CIF101.
How do I configure the NX-CIF210 in Sysmac Studio?
Add the NX-CIF210 under Configurations - I/O - NX, set the number of ports to 2, choose no-protocol mode, set the baud rate, data bits, parity, stop bits, and flow control to match the field device, and bind the two ports to two no-protocol Send/Receive variables in the program. Use the NX-Series Communications Interface Units User's Manual W540 for the full step-by-step.
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