The Omron NX-TS3201 serves as the primary NX-TS3201 Temperature Input Unit utilized to execute multi-channel RTD signal processing across Sysmac NX Series platforms. Equipped with 4 input points for three-wire Pt100 and Pt1000 sensors, it operates at a conversion time of 250 ms per unit. The module incorporates optical isolation between field circuits and the internal bus, transferring process data via Free-Run refreshing.

Part Number Code Breakdown

• NX: Sysmac modular slice I/O platform prefix.
• TS: Temperature input functional unit designation.
• 3: High-density 4-point input channel capacity index.
• 2: Resistance thermometer (RTD) circuit interface type.
• 01: Standard performance conversion rating (250 ms/unit conversion speed).

Technical Hardware Parameters

Deterministic Network Bus & Module Density

Designed for integration into Profinet / EtherNet/IP deterministic networks, the module communicates across the internal NX backplane bus using high-speed cyclic sampling. High backplane bus communication velocity allows all 4 RTD input values to be processed simultaneously without impacting controller cycle time. The platform maintains strict firmware flash compatibility across all Sysmac couplers, enabling optimal I/O density scaling in distributed automation systems.

Ordering Information & Package Scope

• 1 x Omron NX-TS3201 Temperature Input Unit
• 2 x Screwless Clamping Terminal Blocks (16 Terminals Each)
• 1 x Hardware Manual & Installation Guide

Mechanical Mounting & Field Wiring Rules

• DIN Rail Mounting: Align top housing slots with a 35 mm DIN rail and pivot the unit backward until the lower DIN clip locks firmly into place.
• RTD Sensor Connection: Connect three-wire Pt100 or Pt1000 sensors to the screwless clamping terminal block, ensuring equal lead wire resistance across all terminals.
• Warm-Up Phase: Allow a 10-minute warm-up period after power application to ensure internal measurement circuits stabilize before collecting process values.
• Backplane Mating: Slide adjacent NX modules together horizontally along the DIN rail until side bus connectors mesh securely.
• Noise Suppression: Route RTD wiring away from high-voltage motor power leads and terminate overall cable shields to the main panel functional ground.

Frequently Asked Questions

• Is hot-swapping supported for the NX-TS3201 on an energized backplane?

  No. You must disconnect main CPU backplane power and sensor excitation power prior to inserting or removing the unit.

• Which RTD element types can be wired to the 4 input channels?

  The module supports standard three-wire Pt100 and three-wire Pt1000 resistance temperature detectors across all 4 input points.

• What is the required warm-up duration after initial power-up?

  A warm-up period of at least 10 minutes is required for internal voltage references and A/D conversion circuits to reach thermal stability.

• How does Free-Run refreshing execute temperature sampling?

  Free-Run refreshing continuously executes analog-to-digital conversions independently of the controller's main task cycle time.

• What isolation scheme is implemented between individual input channels?

  Channel-to-channel isolation utilizes internal power transformers and signal photocouplers to prevent ground loops and inter-channel noise.

• What terminal connection system is provided with the module?

  Field signals terminate via two front-mounted screwless clamping terminal blocks containing 16 connection points each.

• How does backplane communication velocity affect temperature updates?

  High backplane velocity ensures that converted RTD data frames stream to the head coupler without network transmission lag.

• How is firmware flash compatibility verified during module replacement?

  Sysmac Studio validates hardware revision parameters against project configuration profiles before downloading firmware parameters.