EtherCAT I/Os with TwinSAFE SC technology

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.

Moreover, the ELX terminals are also availabe in combination with TwinSAFE SC technology to implement highly compact solutions that meet the requirements of both intrinsically safe signal transmission and functional safety. Thus, ELX terminals with TwinSAFE SC functionality enable direct connection of intrinsically safe field device through to Zone 0/20.

Safe analog value processing with TwinSAFE SC

Ordering information  
Analog input
EL3124-0090 4-channel analog input 4…20 mA, differential input, 16 bit, TwinSAFE SC
ELX3152-0090 2-channel analog input terminal 0/4…20 mA, single-ended, 16 bit, Ex i, TwinSAFE SC
EL3174-0090 4-channel analog input, parameterisable, -10/0…+10 V, -20/0/+4…+20 mA, 16 bit, TwinSAFE SC
EP3174-0092 EtherCAT Box, industrial housing, 4 analog differential inputs -10…+10 V or 0/4…20 mA, parameterisable, 16 bit, TwinSAFE SC
ELX3202-0090 2-channel input terminal RTD for 2-, 3- and 4-wire connection, 16 bit, Ex i, TwinSAFE SC
ELX3204-0090 4-channel input terminal RTD, 2-wire connection, 16 bit, Ex i, TwinSAFE SC
EL3214-0090 4-channel input terminal PT100 (RTD) for resistance sensors, 16 bit, 3-wire system, TwinSAFE SC
EL3314-0090 4-channel thermocouple input, 16 bit, TwinSAFE SC
ELX3314-0090 4-channel input terminal thermocouple/mV measurement, 2-wire connection, 16 bit, Ex i, TwinSAFE SC
ELX3351-0090 1-channel analog input terminal strain gauge, 16 bit, Ex i, TwinSAFE SC
EL3356-0090 1-channel accurate resistance bridge evaluation, 24 bit, TwinSAFE SC
Position measurement
EL5001-0090 1-channel SSI encoder interface, TwinSAFE SC
EL5021-0090 1-channel SinCos encoder interface, 1 VPP, TwinSAFE SC
EL5032-0090 2-channel EnDat 2.2 interface terminal, TwinSAFE SC
EL5101-0090 incremental encoder interface with differential input, 32 bit, TwinSAFE SC
EL5151-0090 1-channel incremental encoder interface, 32 bit, TwinSAFE SC
ELX5151-0090 1-channel incremental encoder interface NAMUR, 32 bit, Ex i, TwinSAFE SC
EL6224-0090 EtherCAT Terminal, IO-Link master, TwinSAFE SC
EJ6224-0090 EtherCAT plug-in module, IO-Link master, TwinSAFE SC
EJ7211-9414 EtherCAT plug-in module, servomotor module for OCT, with STO input, 50 V DC, Irms = 4.5 A, TwinSAFE SC