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Isolated 16 CH. Digital Input with Counter Modbus TCP Module


  • Wide input range DC power supply.
  • Automatically determine 3 TRP-ASCII and Modbus RTU/ASCII communication protocol.
  • 16 TCP Port can be open at the same time.
  • Heart Beat function ensures a reliable communicating connection.
  • Maximum 8 sets host IP that limits network access.
  • Support Virtual-COM mode.
  • WEB PAGE can be directly read IO status.
  • Easily update the firmware using the Internet.
  • Back to factory configuration by external touch Button.
  • Auto reconnection when power or Ethernet fail.
  • Digital input signal from +/- 0 to 30V DC.
  • Built-In watchdog function prevents system boot fail.
  • LED for each I/O channels working status.
  • Support Auto-MDIX twisted pair crossover detection and Auto-Correction.
  • Power/Link/16 CH DI LED indicator.
  • DIN-Rail and panel mount support.
  • Dual power input select from screw terminal or DC-Jack.


  • Power Input Voltage DC +10V to +30V.
  • Protocol: TRP-ASCII and Modbus RTU/ASCII.
  • Input channel: 16 digital input channels with counter.
  • Input digital input counter: 0~65535.
  • Input optical isolation: 3750 Vrms.
  • Input logical level 0 +1V (max).
  • Input logical level 1 +4.0V ~ +30V.
  • Communication interface: Ethernet RJ45.
  • Configuration mode: Trycom Device Manager, WEB settings.
  • Matching remote control: with TRP-C24H.
  • Heart Beat: TCP Port sent string every 5 seconds.
  • TCP Maximum Connection:1~16.
  • Module ID :1~255.
  • Connection type: Screw terminal for maximum AWG 12 wire.
  • Power supply: Screw terminal, or external DC adapter.
  • Power consumption 240mA/12V.
  • Operating environment: 0 to 50℃.
  • Storage temperature:. -10 to 70℃.
  • Humidity: 10~90% Non-condensing.
  • Dimension: 151mm X 75mm X 26mm .
  • Weight: 395g.


The TRP-C26H is a 16-ch digital Input Ethernet I/O module with isolation.

It allows the user to connect 16-ch signals from 4V to 30V,

It have a normal I/O? except the counter function.

There are 3 protocols we supports that, it includes ASCII and Modbus TCP RTU / ASCII.

The watchdog function ensures running stable under harsh environment.

It allows to connect 1~8 sets of host IP in the network security.