Analog input
ER3174-0002 | 4-channel analog input ±10 V or 0/4…20 mA, parameterisable, differential input, 16 bit
M12 I/O
connection sockets 
Signal status display 
Labelling areas 
Power supply
status display:
Box supply (US
Auxiliary voltage (UP
Power supply feed 
Power supply down- 
stream connection
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
signal input 
signal output 
extended temperature range

ER3174-0002 | 4-channel analog input ±10 V or 0/4…20 mA, parameterisable, differential input, 16 bit

The ER3174 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.

The EtherCAT Box modules with zinc die-cast housing are ready for use in harsh industrial and process environments. With the fully sealed design and metal surfaces the ER series is ideal for applications requiring enhanced load capacity and protection against weld spatter, for example.

Technical data ER3174-0002
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 current or voltage parameterisable (0/4…20 mA, -10/0…10 V)
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 in preparation
Related products  
EP3174 EtherCAT Box, industrial housing, 4-channel analog input ±10 V or 0/4…20 mA, parameterisable, differential input, 16 bit