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.