The Omron NX-TS3102, also cataloged as the NX-TS3102 Temperature Input Unit, operates as a dedicated hardware component for multi-channel thermocouple signal acquisition within Sysmac NX automation networks. It provides 4 isolated temperature input points supporting K, J, T, E, L, U, N, R, S, WRe5-26, and PLII sensor types at a conversion speed of 10 ms per unit. Interfacing across the NX backplane via Free-Run refreshing, the unit delivers 0.01 deg C resolution with digital isolator channel separation.

Model Numbering & Functional Matrix

• NX: Sysmac modular slice I/O series hardware platform designation.
• TS: Temperature input function unit classification.
• 3: 4-channel temperature point capacity index.
• 1: Thermocouple sensor input circuit type.
• 02: Advanced resolution specification (0.01 deg C max, 10 ms/unit conversion speed).

Technical Performance Parameters

Industrial Communication & Density Scaling

Operating within Profinet / EtherNet/IP deterministic networks, the unit processes digitized temperature measurements across the internal NX backplane bus. High backplane bus communication velocity allows rapid cyclic data transfers to the head controller without introducing network frame delays. The hardware architecture preserves firmware flash compatibility across all Sysmac couplers, providing seamless I/O density scaling inside space-constrained control enclosures.

Standard Commercial Deliverables

• 1 x Omron NX-TS3102 Temperature Input Unit
• 2 x Screwless Clamping Terminal Blocks (16 Terminals Each)
• 1 x Technical Instruction Leaflet

Field Wiring & Physical Installation Directives

• DIN Rail Mounting: Hook the top guide notch onto a standard 35 mm DIN rail and press the module backward until the lower locking lever snaps into place.
• Thermocouple Wiring: Insert thermocouple extension wires directly into the screwless clamping terminal slots, ensuring correct polarity.
• Warm-Up Allowance: Allow a 45-minute warm-up period after power-on to stabilize internal cold junction compensation circuitry before reading temperature values.
• Backplane Assembly: Slide the unit laterally along the DIN rail to mate internal bus connectors securely with adjacent NX modules.
• Signal Shielding: Ground thermocouple shielding wires directly to the panel functional ground terminal to prevent external high-frequency interference.

Frequently Asked Questions

• Is live hot-swapping supported for the NX-TS3102 on an active NX bus rail?

  No. Main power to the CPU or coupler unit and external circuit power must be isolated prior to removing or mounting the module.

• What sensor types are supported by the 4 input channels?

  The module accepts thermocouple types K, J, T, E, L, U, N, R, S, WRe5-26, and PLII with configurable scaling.

• How long is the required warm-up time after powering up the unit?

  A minimum warm-up period of 45 minutes is required for cold junction compensation circuits to reach thermal stability.

• What isolation method is implemented between individual input channels?

  Power isolation uses internal transformers, while signal pathways use digital isolators between channels and the backplane.

• What is the input disconnection detection current on thermocouple loops?

  The open-circuit wire break detection circuit outputs a small burnout test current of approximately 0.1 uA across the terminals.

• How does Free-Run refreshing operate on the temperature input module?

  Free-Run refreshing continuously executes analog-to-digital conversions asynchronously from the main controller task execution cycle.

• What happens if the input voltage exceeds the absolute maximum rating?

  Voltages exceeding the +/-130 mV absolute maximum rating will damage internal analog front-end switching components.

• How is firmware flash compatibility maintained across different coupler units?

  Sysmac Studio automatically checks module revision numbers against system profiles during project configuration to match firmware rules.