2-channel analog input terminals 0…20 mA, differential input, 16 bit EL3112
Error LED2
Run LED
Error LED1 
Run LED 
Power contact
+24 V
Power contact 0 V
+Input 1
-Input 1
GND
Shield
+Input 2
-Input 2
GND
Shield
Top view 
Contact assembly 
extended temperature range
extended shock and vibration range

EL3112 | 2-channel analog input terminals 0…20 mA, differential input, 16 bit

The EL3112 analog input terminal processes signals in the range between 0 and 20 mA. The current is digitised to a resolution of 16 bits and is transmitted, electrically isolated, to the higher-level automation device. The input channels of the EtherCAT Terminal have differential inputs and possess a common, internal ground potential. The EL3112 combines two channels in one housing. Overload condition is detected, and the terminal status is relayed to the controller via the E-bus. The EtherCAT Terminal indicates its signal state by means of light emitting diodes. The error LEDs indicate an overload condition.

Technical data EL3112 | ES3112
Number of inputs 2 (differential)
Power supply via the E-bus
Technology differential input
Signal current 0…20 mA
Oversampling factor
Distributed clocks yes
Distributed clock precision << 1 µs
Internal resistance 85 Ω typ. + diode voltage
Input filter limit frequency 5 kHz
Common-mode voltage UCM 10 V max.
Conversion time ~ 50 µs (fast mode ~ 35 µs)
Input signal bandwidth see input filter
Resolution 16 bit (incl. sign)
Measuring error < ±0.3 % (relative to full scale value)
Surge voltage resistance 35 V DC
Electrical isolation 500 V (E-bus/signal voltage)
Current consumption power contacts
Current consumption E-bus typ. 170 mA
Bit width in the process image inputs: 8 byte
Special features standard and compact process image, activatable FIR/IIR filters, limit value monitoring
Weight approx. 55 g
Operating/storage temperature -25…+60 °C/-40…+85 °C
Relative humidity 95 %, no condensation
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 20/variable
Pluggable wiring for all ESxxxx terminals
Approvals CE, UL, Ex