2-channel digital input terminal with oversampling EL1262
Signal LED 2
Signal LED 1 
Power contact
+24 V
Power contact 0 V
Power contact PE
Input 1
Input 2
+24 V
0 V
Top view 
Contact assembly 
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extended shock and vibration range

EL1262 | 2-channel digital input terminal with oversampling

The EL1262 digital input terminal acquires the fast binary control signals from the process level and transmits them, in an electrically isolated form, to the controller. The signals are oversampled with an adjustable, integer multiple (oversampling factor: n) of the bus cycle time (n microcycles per bus cycle). For each microcycle, the EtherCAT Terminal generates a process data block that is transferred collectively during the next bus cycle. The time base of the terminal can be synchronised precisely with other EtherCAT devices via distributed clocks. This procedure enables the temporal resolution of the digital input signals to be increased to n times the bus cycle time.

Technical data EL1262 | ES1262
Connection technology 4-wire
Specification similar to EN 61131-2, type 3, “0”: -3…5 V DC, “1”: 11…30 V DC, typ. 3 mA input current
Number of inputs 2
Nominal voltage 24 V DC (-15 %/+20 %)
“0” signal voltage -3…+5 V (EN 61131-2, type 3)
“1” signal voltage 11…30 V (EN 61131-2, type 3)
Input current typ. 3.0 mA
Input filter typ. < 1 µs
Oversampling/multi-timestamping factor n = integer multiple of the cycle time, 1…1000, see documentation
Precision of timestamp in the terminal 10 ns (+ input delay)
Distributed clock precision << 1 µs
Sampling rate max. 1 Msample/s
Distributed clocks yes
Current consumption power contacts typ. 20 mA + load
Current consumption E-bus typ. 70 mA
Electrical isolation 500 V (E-bus/field potential)
Bit width in the process image n x 2 inputs + 64 bit CycleCounter/latch
Special features oversampling
Weight approx. 55 g
Operating/storage temperature 0…+55 °C/-25…+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/markings CE, UL, ATEX, IECEx
Ex-Marking II 3 G Ex nA IIC T4 Gc
Ex nA IIC T4 Gc
Ex tc IIIC T135 °C Dc
Related products
EL1262-0050 2-channel digital input terminal, 5 V DC, with oversampling
Further information  
XFC eXtreme Fast Control Technology