ET-DI-16 is equipped with 16 binary inputs with voltage level 230VAC/220VDC (model A), 24VDC (model F) and others (see documentation). Inputs have galvanic separation of 4kV.
ET-DI-32 module is equipped with 32 binary inputs with voltage level 24VDC
By a communication bus ET-BUS it sends information, together with accurate time stamp of the event, to CPU ET-C or directly to corresponding binary output module (when ET-DirectLink function is used).
ET-DI module has internal diagnostic system, which transfers actual working parameters and error information to the CPU ET-CP. Programmer can use this data e.g for alarming needs or presentation of controller's status to a user.