DIN-170 Modbus Digital I/O Modules

The DIN-170 series isolated digital input/output modules provide computer monitoring and control of industrial On/Off signals. The modules contain 6 discrete bits for sensing contact closures or controlling solid-state relays and annunciators. Each module communicates using the Modbus RTU serial protocol via an RS-485 serial port. Two models are available.

The DIN-171 digital input module contains six discrete digital inputs for sensing contact closures or switches.  The inputs contain internal pull-up resistors allowing for direct connection of switches or contacts without the need for external components. The digital inputs can accept +/-30Vdc signals without damage. The switching levels are less than +1Vdc equals a logic “0” and greater than +3.5Vdc equals a logic “1”.

The DIN-172 digital output module contains six open-collector digital outputs for controlling solid-state relays and annunciators. The outputs can be pulled up to +30Vdc and drive 100mA loads without damage.

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