Crestron DIN-IO8 Programmable Logic Controller (PLC) module1. 5 W, 5 BTU h, 165 g The DIN IO8 is a DIN rail mounted automation control module that provides eight Versiport I O ports for interfacing with a wide range of third party devices and systems. Each "Versiport" can be configured via software to function as a digital or analog sensing input, or as a digital trigger output. Versiports Configured as a digital input, the Versiport will sense a contact closure or logic level signal from devices such as