ES104R is a DIN rail expansion I/O module for resistances signals suitable for isolating and acquiring 4 signals from resistors or potentiometers (0 … 100kOhm). It’s useful to increase the functionality of the devices of the ESAM E10X range by adding 4 resistances channels and 2 analog outputs; it’s connected to other I/O or temperature control devices using the TBUS connector from which it takes the power signal and the RS485 ModBus RTU serial signal (useful for data acquisition and setting). It is equipped with two digital outputs that can be used as alarm outputs and with an SD memory that can contain the data acquired by the instrument to allow a data log. The module can be config by DIP SWITCH or smartphone (using the E-WSET accessory module).