EL3022 - Introduction
Fig.24: EL3022EtherCAT Terminal, 2-channel analog input, current, 4 … 20 mA, 12-bit, differential
The EL3022 analog input terminal processes signals in the range 4 … 20 mA. The current is digitized to a resolution of 12 bits and transmitted, electrically isolated, to the higher-level automation device. The input channels of the EtherCAT Terminal are differential inputs and have a common internal ground potential, which is not connected to the power contacts.
Overcurrent and wire break are displayed not only in the process image, but also by an error-LED for each channel.