Digital input
EL1262
Signal LED 2
Signal LED 1
Power contact
+24 V
+24 V
Power contact 0 V
Power contact PE
Input 1
Input 2
+24 V
0 V
PE
Top view
Contact assembly
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 |
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| Related products | |
|---|---|
| EL1262-0050 | 2-channel digital input terminal, 5 V DC, with oversampling |
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| Further information | |
|---|---|
| XFC | eXtreme Fast Control Technology |
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