EL3174-0030 - Introduction
Analog Input Terminal; 4 channel, multi-function, ±10 V, ±20 mA, 16 bit, externally calibrated
The EL3174-0030 analog input terminal has four individually parameterizable inputs. Signals in the range from -10/0 to +10 V or -20/0/+4 to +20 mA can be processed via each channel. Physically, the voltage and current signals should be connected to different terminal points. Each channel should then be set by the controller/TwinCAT to U or I mode via CoE. The voltage inputs operate differentially; the current inputs are single-ended. All inputs are digitized with a resolution of 16 bits and 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 and diagnostics according to NAMUR NE43.
For the EL3174-0030, an individual calibration certificate is available, currently as a choice of DAkkS or IS0 17025-compliant certificate. The certificate is issued by an accredited service provider in collaboration with Beckhoff.
The desired calibration certificate can be downloaded from here using the respective serial number.
 | 107% Extended Range The EL3174/ EL3174‑00xx are preconfigured to a measurement range of 107% (e.g. 0x7FFF correspond to +10.737 V or 3.22 V accordingly). Via CoE access can be reset to the previously known legacy range. Then 0x7FFF correspond to the full scale value or e.g. 10 V (3 V) as before. |