D7730 Modbus TCP/IP Ethernet Digital Input/Output Module


The D7730 Digital Output Module contains seven digital input bits, eight digital output bits and communicates using the Modbus TCP Ethernet protocol.

The digital inputs have TTL switching levels, <1V=logic “0” and >3.5Vdc=logic ”1”.  The inputs can accept 0-30Vdc signals without damage. The digital inputs contain internal pull-up resistors for direct connection to contact closures, relays, and annunciators.

The digital outputs are open-collector transistors, can sink up to 100mA per bit and can be pulled up to 30Vdc without damage. A user-programmable Initial Value register specifies the On/Off state of each bit on power-up

A communications Watchdog Timer can be enabled to force the digital outputs to a known “safe” condition in the event of a communications failure.  The “safe” state of each digital output bit is specified in the Initial Value register.

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The D7730 digital input module can be mounted on a DIN-Rail using the MK-1 mounting kit.

Out of stock

Additional Information

Dimensions 7.14 × 4 × 1.5 in

• Seven Digital Inputs
• Eight Open-Collector Digital Output Module.
• RJ-45 10/100Mbps Ethernet Interface.
• Modbus TCP/IP Ethernet Protocol.
• IP Address, Static or DHCP (Default).
• 500Vrms Isolation.
• Seven discrete digital input bits.
• Eight discrete digital output bits.
• Requires +10V to +30Vdc unregulated supply, 10.W.
• Removable screw terminal plug connectors.
• CE marked.
• Internal pull up resistors on inputs for direct switch input
• Communications Watchdog Timer
• User Programmable Digital Output Initial Values


The D7730 digital input/output modules are compatible with all commercial software programs and OPC servers that support the Modbus TCP/IP ethernet protocol. Commercials software programs from DreamReport, Wonderware, Indusoft, DAQFactory and DASYLab all support the Modbus TCP/IP ethernet protocol. OPC Servers from Kepware and MatrikonOPC support the Modbus TCP/IP ethernet protocol.


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

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