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. The standard functions and features of the I/Os remain available. The data from these TwinSAFE SC I/Os is fed to the TwinSAFE Logic, where they undergo safety-related multi-channel processing. In the Safety Logic the data originating from different sources is analysed, checked for plausibility and submitted to a “voting”. This is done by certified function blocks such as Scale, Compare/Voting (1oo2, 2oo3, 3oo5), Limit, etc. For safety reasons, however, at least one of the data sources must be a TwinSAFE SC component. The remainder of the data can originate from other standard Bus Terminals, drive controllers or measuring transducers.

With the aid of the TwinSAFE SC technology it is typically possible to achieve a safety level equivalent to PL d/Cat. 3 in accordance with EN ISO 13849-1 or SIL 2 in accordance with EN 62061.

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 | 85 Ω typ. + diode voltage
Common-mode voltage UCM 35 V max.
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 CE, UL, Ex
Related products  
EK1960 TwinSAFE Compact Controller
EL6910 TwinSAFE Logic
Further information
TwinSAFE SC TwinSAFE SC technology