BECKHOFF EL1262

EtherCAT Terminal, 2-channel digital input, 24 V DC, 1 µs, oversampling
EL1262 | EtherCAT Terminal, 2-channel digital input, 24 V DC, 1 µs, oversampling
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The EL1262 digital input terminal acquires the fast binary 24 V control signals from the process level and transmits them, in an electrically isolated form, to the controller. The EtherCAT Terminal has two channels that indicate their signal state via light emitting diodes. The signals are sampled with a configurable, integer multiple (oversampling factor: n) of the bus cycle frequency (n microcycles per bus cycle). For each bus cycle, the EtherCAT Terminal generates a process data block that is transferred collectively during the next bus cycle. The timebase of the terminal can be synchronized precisely with other EtherCAT devices via distributed clocks. This XFC procedure enables the temporal resolution of the digital input signals to be increased to n times the bus cycle time.

Special features:

suitable for particularly fast signals due to very low input delay
synchronized operation through distributed clocks XFC technology possible
multiple sampling of a process data through oversampling
Technical data EL1262
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 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) Sampling rate max. 1 Msample/s Distributed clocks yes Distributed clock precision << 1 µs 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 temperature 0…55°C Storage temperature -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. rating/installation pos. IP20/variable Plug-in wiring level for all ESxxxx terminals Approvals/markings CE, CCC, UL, ATEX, IECEx, cFMus Ex marking ATEX: II 3 G Ex ec IIC T4 Gc IECEx: Ex ec IIC T4 Gc cFMus: Class I, Division 2, Groups A, B, C, D Class I, Zone 2, AEx ec IIC T4 Gc