Analog input
EP3174-0092
 
EP3174-0092 | TwinSAFE SC: 4-channel analog input ±10 V or 0/4…20 mA, differential input, 16 bit
EP3174-0092
Connector
assignment
I/O
connection
M12 I/O
connection sockets 
Signal status display
Labelling areas 
1 | Sensor Supply UP
2 | Input +
3 | GNDP
4 | Input -
5 | Shield
1 | Tx+
2 | Rx+
3 | Rx-
4 | Tx-
1 | + 24 V DC Us
2 | + 24 V DC UP
3 | GNDs
4 | GNDP
EtherCAT
signal input 
EtherCAT
signal output 
Power supply
status display:
Box supply (US
Auxiliary voltage (UP
Power supply feed 
Power supply down- 
stream connection
extended temperature range

EP3174-0092 | TwinSAFE SC: 4-channel analog input ±10 V or 0/4…20 mA, differential input, 16 bit

The EP3174-0092 EtherCAT Box has four analog inputs which can be individually parameterised, so that they process signals either in the -10…+10 V or the 0/4…20 mA range. The voltage or input current is digitised with a resolution of 16 bits, and is transmitted (electrically isolated) to the higher-level automation device. The four input channels have differential inputs and possess a common, internal ground potential. The input filter and therefore the conversion times are configurable in a wide range. If required, the inputs can be scaled differently, and automatic limit monitoring is also available. EtherCAT is used for parameterisation purposes. The parameters are stored in the module.

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.

Technical data EP3174-0092
Number of inputs 4 (differential)
Input connections M12, screw type
Protocol EtherCAT
Bus interface 2 x M8 socket, shielded, screw type
Signal type -10/0…+10 V | 0/4…20 mA
Internal resistance > 200 kΩ | typ. 85 Ω + diode voltage
Common-mode voltage UCM max. 35 V
Resolution 16 bit (incl. sign)
Measuring error < ±0.3 % (relative to full scale value)
Input filter limit frequency 5 kHz
Conversion time ~ 100 µs
Nominal voltage 24 V DC (-15 %/+20 %)
Distributed clocks yes
Input filter configurable
Sensor supply from load supply voltage UP
Current consumption from US (without sensor current) 120 mA
Power supply connection feed: 1 x M8 male socket, 4-pin; downstream connection: 1 x M8 female socket, 4-pin
Bit width in the process image 4 x 16 bit input, 4 x 8 bit status
Electrical isolation 500 V
Special features TwinSAFE SC, current or voltage parameterisable
(0/4…20 mA, ‑10/0…10 V)
Weight approx. 165 g
Operating/storage temperature -25…+60 °C/-40…+85 °C
Vibration/shock resistance conforms to EN 60068-2-6/EN 60068-2-27
EMC immunity/emission conforms to EN 61000-6-2/EN 61000-6-4
Protect. class/installation pos. IP 65/66/67 (conforms to EN 60529)/variable
Approvals/Markings CE, UL, ATEX
Ex-Marking II 3 G Ex nA IIC T4 Gc
Related products  
EK1960 TwinSAFE Compact Controller
EL6910 TwinSAFE Logic
Further information
TwinSAFE SC TwinSAFE SC technology