OMRON NX-V680C1/C2 — RFID Systems
Omron NX-V680C1/C2: NX-series unit for V680 RFID; 1 or 2 antennas, read/write up to 8,192 bytes, powered from the NX bus, 30 × 100 × 71 mm.
Status: In production
Brand: Omron
Product: NX-series RFID unit, 1 or 2 channels
Number of antennas: NX-V680C1: 1; NX-V680C2: 2
Communications protocol: ISO/IEC 18000-3 (15693)
Read/write size: 8,192 bytes max.
Degree of protection: IP20
The NX-V680C1 (1 channel) and NX-V680C2 (2 channels) are RFID Units that connect V680-series RFID devices to the NX-series I/O system. They connect directly to NX-series CPU Units or through an EtherCAT or EtherNet/IP Coupler Unit. V680-HS separate-amplifier antennas (with a V680-HA63 amplifier) are used, and the NX-V680C1 can also take the V680-H01-V2 antenna with built-in amplifier. The units work with V680S and V680-series RF tags, use the ISO/IEC 18000-3 (15693) protocol and support burst communication of 8 KB data with a read/write size of up to 8,192 bytes.
Reads and writes are performed by setting parameters in the memory area of the machine automation controller, and communication programs are built with function blocks of the Sysmac RFID Communications Library (SYSMAC-XR019). The unit provides write protection, tag service life detection, CRC memory error detection, ECC error correction and a test command with noise measurement. It measures 30 × 100 × 71 mm and is supplied from the NX bus; power consumption is 1.00 W max. when connected to a CPU Unit. Operating temperature is 0 to 55 °C; weight is 120 g (C1) and 130 g (C2) max.
Omron NX-V680C1/C2 technical specifications
| General | |
|---|---|
| Type | NX-series RFID Unit, NX I/O bus |
| Connection | NX-series CPU Unit, EtherCAT Coupler Unit (NX-ECC20x), EtherNet/IP Coupler Unit (NX-EIC20x) |
| Connectable antennas | V680-HS (with V680-HA63 amplifier); V680-H01-V2 with NX-V680C1 only |
| Applicable RF tags | V680S series and V680 series |
| Software | Sysmac Studio version 1.25 or higher |
| Detection | |
| Communications protocol | ISO/IEC 18000-3 (15693) |
| RF tag read/write size | 8,192 bytes max. |
| Divided data size | 16–128 bytes |
| I/O refreshing | Free-Run refreshing |
| Electrical characteristics | |
| Power supply | Supplied from the NX bus |
| I/O power current consumption | C1: 250 mA max. with V680-H01-V2, 210 mA max. with V680-HA63; C2: 380 mA max. with V680-HA63 |
| NX Unit power consumption | Connected to CPU Unit: 1.00 W max.; connected to Coupler Unit: 0.90 W max. |
| Isolation | Digital isolator; 20 MΩ min. (at 100 V DC); 510 V AC for 1 min |
| Environmental | |
| Ambient operating temperature | 0 to 55 °C |
| Ambient operating humidity | 10–95% (with no condensation or icing) |
| Ambient storage temperature | −25 to 70 °C |
| Altitude | 2,000 m max. |
| Shock resistance | IEC 60068-2-27, 147 m/s², 3 times each in X, Y and Z |
| Applicable standards | cULus (UL61010-2-201), ANSI/ISA12.12.01, EN61131-2, RCM, KC |
| Mechanical and connection | |
| Dimensions | 30 × 100 × 71 mm (W × H × D) |
| Degree of protection | IP20 |
| Indicators | TS, RF, NORM, ERR |
Omron NX-V680C1/C2 models
| Code | Antennas | V680-H01-V2 connection | Weight |
|---|---|---|---|
| NX-V680C1 | 1 | yes | 120 g max. |
| NX-V680C2 | 2 | no | 130 g max. |
Key features
- Direct connection to NX-series CPU or via EtherCAT or EtherNet/IP Coupler
- 1 or 2 antenna channels; works with V680S and V680 tags
- Burst communication of 8 KB data, read/write up to 8,192 bytes
- Write protection, tag life detection, CRC error detection and ECC correction
- Function blocks of the Sysmac RFID Communications Library (SYSMAC-XR019)
NX-V680C1/C2 ordering codes
| Part number | Description |
|---|---|
| NX-V680C1 | NX-series RFID Unit, 1 channel |
| NX-V680C2 | NX-series RFID Unit, 2 channels |
Other Omron RFID Systems
- OMRON V680S-HMD6x-ETN — 3-in-1 RFID reader/writer with Modbus TCP
- OMRON V680S-HMD6x-EIP/PNT — 3-in-1 RFID reader/writer with EtherNet/IP or PROFINET
- OMRON V680S-D2KF6x/D8KF6x — Battery-less FRAM RFID tag, 2 KB / 8 KB
- OMRON V680-D1KP/D2KF — Battery-less RFID tag, 1 KB EEPROM / 2 KB FRAM
- OMRON V680-HSxx/H01-V2 — RFID antenna, separate-amplifier and built-in-amplifier types
- OMRON V680-HA63A/HA63B — V680 RFID amplifier unit
- OMRON V680-CA5D01-V2/CA5D02-V2 — V680 RFID controller, 1 or 2 amplifiers
- OMRON CJ1W/CS1W-V680C1x — RFID ID Sensor Unit for CJ/CS-series PLCs
- OMRON V680-HAM42-DRT/PRT — Amplifier-integrated RFID controller, DeviceNet / PROFIBUS ID slave
- OMRON V680-HAM91/HAM81 — Amplifier-integrated RFID controller (ID Flag Sensor), NPN/PNP output
- OMRON V680-CHUD/CH1D — Handheld RFID reader/writer
- OMRON V640 — 134 kHz RFID system for semiconductor applications (SEMI compliant)
Models from other brands: RFID Systems
Is this RFID system right for your application?
Share the read/write distance, the mounting surface of the tag (metal/plastic), the required memory capacity, the carrier speed, ambient conditions and your PLC network (Modbus TCP, EtherNet/IP, PROFINET, Profibus); let’s select the right reader, antenna and tag combination together.
All product specifications are subject to change without notice. Source: Omron, https://industrial.omron.eu/en/products/NX-V680C1; https://industrial.omron.eu/en/products/NX-V680C2; NX-series RFID Units NX-V680C datasheet CSM_NX-V680C_DS_E_3_1 (https://files.omron.eu/downloads/latest/datasheet/en/nx-series_rfid_units_-_nx-v680c_datasheet_en.pdf); V680 Series datasheet Q267 (https://files.omron.eu/downloads/latest/datasheet/en/q267_v680_series_-_rfid_system_datasheet_en.pdf) (accessed 25 September 2026).