Configured for resistance temperature detector signal processing in Sysmac NX Series environments, the Omron NX-TS2204 (NX-TS2204 Temperature Input Unit) provides direct physical/electrical execution. It features 2 input points for three-wire Pt100 and Pt1000 RTD sensors, operating with a conversion time of 60 ms per unit and achieving 0.001 deg C resolution. The unit utilizes Free-Run refreshing across internal bus structures to stream digitized temperature metrics into controller memory.

Part Number Nomenclature & Structure

• NX: Sysmac modular slice I/O series hardware platform designation.
• TS: Temperature input function module classification.
• 2: 2-channel input point capacity index.
• 2: Resistance thermometer (RTD) input circuit design.
• 04: Fine-resolution specification (0.001 deg C max, 60 ms/unit conversion speed).

Technical Specifications Summary

Deterministic Communications & Architecture

Communicating via Profinet / EtherNet/IP deterministic networks, the module transmits process variable data across internal backplane buses. High backplane bus communication velocity prevents data transfer bottlenecks during cyclic update routines. The slice design guarantees full firmware flash compatibility across Sysmac CPU and coupler heads, streamlining I/O density scaling inside control panel assemblies.

Shipping Package Contents

• 1 x Omron NX-TS2204 Temperature Input Module
• 1 x Screwless Clamping Terminal Block Assembly (16 Terminals)
• 1 x Installation Sheet

Panel Installation & Field Wiring Rules

• DIN Rail Attachment: Mount the top rail notch onto standard 35 mm DIN rail profiles and pivot downward until the lower lock secures.
• RTD Wire Termination: Wire three-wire Pt100 or Pt1000 sensors into the screwless terminal block, maintaining equal conductor resistance on all leads.
• Thermal Stabilization: Allow a 30-minute warm-up period after power application to stabilize internal measuring circuits before taking measurements.
• Backplane Integration: Align lateral guides with adjacent NX modules and press horizontally until internal bus interfaces click together.
• Cable Shielding: Connect cable shields directly to the panel functional ground bar using short lead lengths to reduce noise coupling.

Frequently Asked Questions

• Can the NX-TS2204 module be hot-swapped while backplane power is active?

  No. All power supplies to the CPU unit, coupler, and field circuits must be disconnected before installing or removing the unit.

• Which RTD sensors are compatible with the input channels?

  The unit supports three-wire Pt100 and three-wire Pt1000 resistance temperature detectors across both input channels.

• How long must the module warm up after initial power-on?

  A warm-up duration of 30 minutes is required for internal reference voltage circuits to reach operational thermal equilibrium.

• What is the detection current applied to connected RTD sensors?

  The module applies a low constant sensing current of approximately 0.25 mA to minimize self-heating effects on RTD elements.

• How does Free-Run refreshing affect data updates to the controller?

  Free-Run refreshing executes A/D conversions asynchronously from the CPU task cycle, updating internal output registers continuously.

• What isolation technique is used between individual channels?

  Channel-to-channel isolation relies on power transformers and digital signal isolators to maintain electrical separation.

• What is the maximum allowable conductor resistance for RTD wiring?

  Lead wire resistance must not exceed 20 ohms per conductor, with a maximum resistance effect of 0.06 deg C per ohm.

• How is firmware flash compatibility ensured when replacing modules?

  Sysmac Studio checks hardware revision parameters against project files during download to ensure full system firmware compatibility.