The Omron NX-TS3104, also cataloged as the NX-TS3104 Temperature Input Unit, operates as a dedicated hardware component for multi-channel thermocouple signal acquisition within NX Bus automation platforms.

Model Number Decoding & Functionality

The hardware part number designates core operational metrics: "TS" identifies the module as a Temperature Input type, "3" indicates 4 input channels, "1" specifies Thermocouple sensor compatibility, and "04" defines specific operating parameters including a 60 ms conversion cycle per unit, a maximum resolution of 0.001 deg C, and Free-Run backplane refreshing.

Hardware Specifications

Galvanic Separation & Backplane Integration

Isolation between field inputs and the internal NX backplane utilizes transformers for internal power and digital isolators for data paths. Channel-to-channel isolation is also provided, preventing interference across thermocouple circuits. High backplane bus communication velocity and I/O density scaling preserve deterministic response times across EtherNet/IP and EtherCAT networks. Insulation resistance exceeds 20 Mohm at 100 VDC, withstanding 510 VAC dielectric strength for 1 minute with leakage below 5 mA.

Ordering Information

• 1 x Omron NX-TS3104 Temperature Input Module
• 2 x Screwless Clamping Terminal Blocks (16 terminals x 2)
• 1 x Terminal Insertion Instruction Leaflet

Wiring & Mounting Directives

• Snap the 24 mm module onto a standard 35 mm DIN rail inside a grounded metal panel enclosure.
• Connect thermocouple leads directly to the dual 16-terminal screwless clamping connectors, observing sensor wire polarity.
• Route thermocouple extension conductors in separate cable ducts isolated from high-voltage AC lines.
• Observe a mandatory 45-minute warm-up duration after initial power delivery to stabilize cold-junction compensation circuits.

Frequently Asked Questions

• Q: What thermocouple types can be connected to this input module?

  A: Supported types include K, J, T, E, L, U, N, R, S, WRe5-26, and PLII thermocouples.

• Q: What is the total conversion cycle time for all 4 channels?

  A: Signal conversion completes at a speed of 60 ms per unit under Free-Run refreshing mode.

• Q: Does the module provide electrical isolation between individual input channels?

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

• Q: What terminal connector style is used for external sensor wiring?

  A: The front panel incorporates two screwless clamping terminal blocks providing 32 total terminals.

• Q: What input impedance is present at the thermocouple terminals?

  A: Internal input impedance measures 20 kohm minimum across all measurement circuits.

• Q: What is the required warm-up time before taking accurate temperature readings?

  A: A warm-up period of 45 minutes is required post power-up to allow thermal stabilization.

• Q: What is the disconnection detection current applied to sensors?

  A: The module applies an input disconnection detection current of approximately 0.1 uA.

• Q: What is the net physical weight of this 4-point unit?

  A: The unit net weight is 0.14 Kg (140 grams), housed in a 24 mm wide housing.