NX-RS1201 Load Cell Input Unit 1 Channel 24-bit 125µs 12mm | Omron

The Original New Omron NX-RS1201 is a 1-channel load cell input unit for the NX series I/O system, designed to convert analog signals from strain-gauge load cells into high-resolution digital weight or force values. Featuring a 24-bit A/D converter, a fast 125 µs conversion cycle, and differential input with -5.0 to 5.0 mV/V range, it delivers precise, high-speed measurements for industrial weighing and force measurement applications. The 12 mm wide module uses screwless push-in terminal blocks for tool‑free wiring. Part of the NX series for EtherCAT communication coupler systems, it enables cost‑saving weighing and measurement systems using load cells.

Core Engineering Highlights:
1 load cell input channel | 24-bit A/D converter resolution | 125 µs conversion cycle | -5.0 to 5.0 mV/V input range | Differential input circuit | 5V DC ±10% load cell excitation voltage | 4-wire or 6-wire load cell connection | Free-run, synchronous, and task period prioritized I/O refreshing | Screwless push-in terminal block (NX-TBC162) | 12 mm width for high-density mounting | IP20 protection | 0°C to +55°C operating temperature

Key Features:

• Original New Omron NX-RS1201 module

• 1 load cell input channel with 24-bit A/D converter

• 125 µs conversion cycle for high-speed measurement

• -5.0 to 5.0 mV/V input range for load cell signals

• Differential input circuit for improved noise immunity and measurement stability

• 5V DC ±10% load cell excitation voltage (max. 60 mA)

• Supports 4-wire and 6-wire load cell connections

• Three I/O refreshing methods: Free-run, Synchronous, Task period prioritized

• Screwless push-in terminal block for tool‑free wiring

• Terminal block coding pins for misinsertion prevention

• Digital filtering and calibration functions

• LED indicators for module status and input signal monitoring

• 12 mm slim width for high-density panel mounting

• NX series I/O system compatible with EtherCAT and EtherNet/IP couplers

• IP20 protection rating

• CE, UL, CSA, NK, DNV, BV, KR, ABS certified

• RoHS compliant

Applications:

• Industrial weighing and force measurement systems

• Load cell signal acquisition for silo, tank, and hopper weighing

• Packaging machinery weight inspection and checkweighing

• Filling and dosing systems

• Material handling and conveyor belt scales

• Process control and quality assurance

• OEM equipment requiring high-precision load cell input

• Distributed I/O systems using NX series architecture

Technical Specifications:

System Compatibility:

• Compatible with Omron NX series EtherCAT Coupler Units (NX-ECC20×) and EtherNet/IP Coupler Units (NX-EIC202)

• Requires NX series communication coupler unit or NX series CPU unit for operation

• Supports free-run, synchronous, and task period prioritized I/O refreshing

• Compatible with NJ/NX/NY series controllers

• Mounts on 35 mm DIN rail

• Terminal block coding pins (NX-AUX02) available for misinsertion prevention

Related Products:

• NX-ECC203 – NX series EtherCAT Coupler Unit, 2 ports, 125 µs cycle time

• NX-EIC202 – NX series EtherNet/IP Coupler Unit, 2 ports, local safety support

• NX-TBC162 – Replacement screwless push-in terminal block, 16 terminals

• NX-AUX02 – Terminal block coding pins for 10 units

• NX-RS1201-K – Load cell input unit with test and calibration certificate

PLC ERA is an independent industrial automation distributor supplying genuine Original New products through established global supply channels. All products are factory sealed when applicable and undergo quality inspection prior to shipment. Omron and NX Series are trademarks of Omron Corporation.