EL3021 - Introduction
Analog Input Terminal; 1 channel, 12 bits, 4 ... 20 mA, differential input
The EL3021 analog input terminal processes signals in the range from 4 to 20 mA. The current is digitized to a resolution of 12 bits and transported, electrically isolated, to the higher-level automation device. The input channel of the EtherCAT Terminals is a differential input and has an internal ground potential that 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.
The EL3021 is the 1-channel version and is characterized by its fine granularity and electrical isolation.