Beckhoff ELX3204-0090 | EtherCAT Terminal, 4-channel analog input, temperature

The ELX3204-0090 analog input terminal allows the direct connection of RTDs

located in hazardous areas classified zone 0/20 or 1/21. The circuitry of the

ELX3204-0090 can operate sensors with 2-wire technology. Linearization is

carried out over the entire freely selectable temperature range.

By default the terminal is set to Pt100 sensors with 2-wire technology.

The ELX3204-0090 terminal indicates signal state and sensor malfunctions 

(e.g. wire breakage) by means of LEDs.

With the aid of the TwinSAFE SC technology (TwinSAFE Single Channel) it is

possible to make use of standard signals for safety tasks in any network or

fieldbus. To do this, EtherCAT I/Os from the areas of analog input, position

measurement or communication (4… 20 mA, incremental encoder, IO-Link,

etc.) are extended by the TwinSAFE SC function. The properties typical for

the signals and the standard functions of the I/O components are retained.

TwinSAFE SC I/Os differ optically from standard I/Os by a yellow stripe on

the front of the housing.

The TwinSAFE SC technology enables communication via a TwinSAFE

protocol. These connections can be distinguished from the usual secure

communication via Safety over EtherCAT.

The data from the TwinSAFE SC components is fed via a TwinSAFE protocol

to the TwinSAFE Logic, where it can be used in the context of safety-relevant

applications. Detailed examples confirmed/calculated by the TÜV SÜD for the

correct application of the TwinSAFE SC components and the respective

normative classifications can be found in the TwinSAFE application manual.