The Omron CP1W-TS001, also cataloged as the CP1W-TS001 I/O Expansion Unit, operates as a dedicated hardware component for temperature sensor input acquisition and analog signal digitization within Omron CP1H, CP1L, and CP1E PLC networks.

Technical Identifier Matrix

• Series Prefix (CP1W): Expansion unit for CP1-series PLC CPU platforms
• Function Code (TS): Temperature sensor input unit (Thermocouple inputs)
• Model Identifier (001): 2-channel analog thermocouple input configuration with 12-bit conversion resolution

Hardware Specifications

PLC Determinism and Expansion Bus Velocity

The CP1W-TS001 expansion interface transfers digitized temperature values directly across the CP-series internal backplane bus during the PLC cyclic I/O refresh period. High-speed backplane velocity ensures digitized 12-bit temperature register data maps deterministically into assigned CPU CIO words without extending PLC scan execution overhead.

The expansion bus architecture permits local I/O density scaling by chaining multiple CP1W modules side-by-side using the built-in flat expansion cable connection. Internal photocoupler isolation isolates field thermocouple wiring from CPU logic circuits, suppressing high-frequency common-mode noise and preventing ground loops across expansion racks.

Package Contents & Ordering Information

• 1x Omron CP1W-TS001 Analog I/O Expansion Unit
• 1x Integrated Expansion Bus Ribbon Cable
• 1x Removable Screw Terminal Block
• 1x CP1W Hardware Installation Instruction Manual

Field Installation Guidelines

• DIN-Rail Mounting: Clip the module directly onto a standard 35 mm DIN rail (PFP-50N/PFP-100N). Ensure side locking tabs fully engage to prevent lateral movement on the rail.
• Backplane Bus Connection: Connect the pre-attached flat expansion ribbon cable securely to the expansion connector on the adjacent CPU unit or expansion module.
• Thermocouple Signal Wiring: Wire thermocouple compensation wires directly to input terminals using dedicated shielded extension cable matching the specific thermocouple calibration (Type K or J).
• Grounding and Shielding: Ground signal cable shielding at a single point near the controller using a 360-deg braid grounding clamp connected to the protective earth terminal.
• Terminal Tightening Torque: Fasten screw terminals to 0.5 N-m to maintain reliable low-resistance electrical connections without damaging terminal housing threads.

Frequently Asked Questions

• How many temperature input channels does the CP1W-TS001 provide?

  The CP1W-TS001 provides 2 dedicated analog temperature input channels for direct thermocouple connection.

• What conversion resolution is utilized for digitized temperature registers?

  The expansion module converts physical temperature input signals into 12-bit digital values.

• Does this unit require an external 24 VDC auxiliary power line?

  Power is drawn directly from the main PLC CPU base unit through the side expansion ribbon cable bus.

• How does the expansion bus handle data transfer to the main CPU?

  Data transfer executes during cyclic scan I/O refresh, updating channel values into CIO memory registers.

• What isolation mechanisms are used to protect CPU backplane logic?

  Photocouplers provide galvanic isolation between analog field input terminals and internal bus logic.

• Can standard copper wire be used to extend field thermocouples?

  No, proper thermocouple extension or compensation wire matching the sensor type must be used to prevent junction errors.

• How is cable shielding connected on thermocouple input lines?

  Shielding must be terminated at a single grounding point using a 360-deg braid clamp connected to PE ground.

• Is hot-swapping supported for the CP1W-TS001 while the CPU is powered?

  No, removing or inserting expansion modules while the PLC base is energized is strictly prohibited.