The Omron NX-TS3204, also cataloged as the NX-TS3204 Temperature Input Unit, operates as a dedicated hardware component for multi-channel resistance thermometer signal processing within NX Bus automation platforms.

Model Number Decoding & Functionality

The hardware designation details functional execution parameters: "TS" specifies a Temperature Input unit, "3" indicates 4 input channels, "2" defines Resistance Thermometer sensor processing, and "04" designates a 60 ms conversion period per unit alongside 0.001 deg C maximum resolution under Free-Run backplane refreshing.

Hardware Specifications

Galvanic Separation & Backplane Performance

The unit incorporates electrical separation using internal transformers for power lines and digital isolators for signal transmission between inputs and the internal NX bus, as well as between individual input channels. High backplane bus communication velocity and I/O density scaling preserve real-time synchronicity across EtherNet/IP and EtherCAT deterministic networks. Insulation resistance reaches 20 Mohm min. at 100 VDC, withstands 510 VAC dielectric potential for 1 minute, and maintains firmware flash compatibility.

Package Component List

• 1 x Omron NX-TS3204 Temperature Input Module
• 2 x Screwless Clamping Terminal Blocks (16 terminals x 2)
• 1 x Installation Instruction Leaflet

Wiring & Enclosure Installation Directives

• Mount the 24 mm module onto a standard 35 mm DIN rail inside an IP54 metallic control cabinet.
• Connect three-wire Pt100 or Pt1000 RTD sensors directly to the dual 16-terminal screwless clamping connectors.
• Ensure conductor resistance does not exceed 20 ohm to limit thermal measurement error to 0.06 deg C/ohm max.
• Allow a 30-minute warm-up duration following initial power application to achieve rated measurement precision.

Frequently Asked Questions

• Q: Which temperature sensor types are compatible with this input module?

  A: The module directly supports three-wire Pt100 and three-wire Pt1000 resistance temperature detectors.

• Q: What is the total conversion speed across the 4 input channels?

  A: Signal conversion completes at 60 ms per unit operating in Free-Run refreshing mode.

• Q: Is electrical isolation provided between the individual input channels?

  A: Yes, galvanic isolation is implemented both channel-to-channel and between the inputs and the NX bus.

• Q: What is the maximum permitted conductor resistance for RTD wiring?

  A: The maximum permitted conductor resistance is 20 ohm, with an effect of 0.06 deg C/ohm max.

• Q: What level of excitation current is applied for RTD resistance detection?

  A: The internal current source applies an input detection current of approximately 0.25 mA.

• Q: What warm-up period is required prior to taking precise temperature data?

  A: A minimum warm-up time of 30 minutes is required post power-up to reach maximum accuracy.

• Q: What terminal connector interface is provided on the front housing?

  A: The unit includes two screwless clamping terminal blocks providing 32 connection points in total.

• Q: What is the net physical weight of this 4-channel RTD input unit?

  A: The hardware module net weight is 0.13 Kg (130 grams) in a 24 mm wide form factor.