EL3154 – Introduction
Fig.54: EL3154EtherCAT Terminal, 4-channel analog input, current, 4 … 20 mA, 16-bit, single-ended
The EL3154 analog input terminal processes signals in the range 4 … 20 mA. The current is digitized to a resolution of 16 bits and transmitted, electrically isolated, to the higher-level automation device.
The input electronics is independent of the supply voltage of the power contacts. In the EL3154 with four inputs, the 24 V power contact is connected to the terminal in order to enable connection of 2-wire sensors without external supply. The power contacts are looped through. The signal state of the EtherCAT Terminal is indicated by LEDs. The error-LEDs indicate an overload condition and a wire break.