New! USB-Configured High-Density Ethernet I/O

New! USB-Configured High-Density Ethernet I/O

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The BusWorks XT series of Ethernet I/O modules support Modbus TCP/IP, Ethernet/IP, Profinet and i2o peer-to-peer communication protocols. They monitor and/or control up to 16 discrete or analog devices per unit with a variety of inputs and outputs supported.

Transmitter, Frequency/Pulse/PWM Input, 12-32V DC Loop/Local Power

• Multi-range 0Hz to 100KHz frequency input 

• Multi-range 0Hz to 3KHz PWM input

• 4-20mA output (sink/source)

• 12-32V DC power

The TT239 model is a space-saving two-wire transmitter that isolates and converts a frequency, pulse, or pulse-width modulation (PWM) input to a proportional 4-20mA signal. You can select to measure either the input frequency or the duty cycle. Power is received from the output loop current or a DC suply when using a three-wire connection.

High-voltage isolation separates the input from the output circuit. Isolation protects from surges, reduces noise, and eliminates ground loop errors.



  • Easy setup and digital calibration via USB with Windows configuration software
  • Measures frequency or duty cycle and interfaces many input types up to 100KHz
  • Accepts input amplitudes up to 120Vrms (±170V DC, unipolar or bipolar)
  • Adjustable 0Hz cut-off, sample averaging, debounce, and output update time
  • Software configurable pull-up/down resistors (+4V DC input pull-up for sensors/tranducers)
  • 1500V isolation between input/output circuits
  • Space-saving 12.5mm (0.5 inch) unit with pluggable terminals for convenient wiring
  • Fast response time and high accuracy
  • Supports normal or reverse-acting output
  • Supports sink or source output wiring
  • NAMUR-compliant output loop current
  • Shock (25g) and vibration (4g) resistant
  • Wide ambient operation (-40 to 80°C)
  • CE Compliant. UL/cUL Class 1 Div 2 Zone 2 approvals

Pricing and Order Information

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Part No. Description Price (in $USD)  

Two-wire transmitter, isolated frequency/pulse/PWM input.


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