EL3174-0042 – Introduction
Fig.84: EL3174-0042EtherCAT Terminal, 4-channel analog input, multi-function, ±60 V, ±30 V, 16-bit, differential, electrically isolated
The EL3174-0042 analog input terminal has four individually parameterizable inputs. Signals either in the range -60 … +60 V or in the range -30 … +30 V can be processed per channel. Each channel must be set to the respective measuring range by the controller via CoE.
The input voltage or current is digitized with a 16-bit resolution and is transmitted, electrically isolated, to the higher-level automation device. With a technical measuring range of ±107 % of the nominal range, the terminal also supports commissioning with sensor values in the limit range. The four differential inputs are electrically isolated from each other and from the fieldbus (2500 V DC).
 | 107 % extended range The EL3174/ EL3174-00xx are pre-set to 107 % measuring range, e.g. 0x7FFF corresponds to +10.737 V or 3.22 V. The previously known legacy range can be reset via CoE access. Then 0x7FFF will correspond to the full scale value again (FSV, e.g. 10 V/ 3 V). |