D8710 Modbus Digital Input Module


The D8710 Modbus digital input module contains fifteen isolated digital inputs for sensing contact closures or other on/off signals. The inputs can be read individually or all at once using the Modbus RTU serial protocol.

The digital input switching levels are less than +1Vdc equals a logic “0” and greater than +3.5Vdc equals a logic “1”.  Each digital input will accept DC voltages between 0-30Vdc without damage.

The digital input values are transmitted to a host computer using the Modbus RTU serial protocol via the USB virtual serial port connection.

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The D8710 USB digital input modules can be mounted on a DIN-rail using the MK-1 mounting kit.

Available on backorder

Additional Information

Dimensions 7.14 × 4 × 1.5 in

• USB communications interface.
• Modbus RTU Protocol.
• 500Vrms analog input isolation.
• 15 Discrete Digital Inputs
• Continuous self-calibration
• Requires +10V to +30Vdc unregulated supply, 0.75W.
• Removable screw terminal plug connectors.
• 3ft USB cable included.
• CE marked.
• Internal pull up resistors for direct switch input


The D8710 digital input modules are compatible with all commercial software programs and OPC servers that support the Modbus RTU protocol. Commercials software programs from DreamReport, Wonderware, Intellution, National Instruments Labview, Indusoft, DAQFactory and Dasylab all support the Modbus RTU protocol. OPC Servers from Kepware and MatrikonOPC support the Modbus RTU protocol.


• Process monitoring and control
• Remote data logging to any host computer
• Product testing

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