EL1254 | EtherCAT Terminal, 4-channel digital input, 24 V DC, 1 µs, timestamp

Technical data	EL1254
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	4
Nominal voltage	24 V DC (-15 %/+20 %)
“0” signal voltage	-3…+5 V (similar to EN 61131-2, type 3)
“1” signal voltage	11…30 V (similar to EN 61131-2, type 3)
Input current	typ. 3 mA (similar to EN 61131-2, type 3)
Input filter	typ. < 1 µs
Resolution timestamp	1 ns
Precision of timestamp in the terminal	10 ns (+ input delay)
Distributed clock precision	<< 1 µs
Input delay TON/TOFF	< 1 µs
Distributed clocks	yes
Time resolution signal	1 ns
Current consumption power contacts	typ. 20 mA + load
Current consumption E-bus	typ. 80 mA
Electrical isolation	500 V (E-bus/field potential)
Bit width in the process image	4 x input + 4 x 16 byte timestamp
Configuration	no address or configuration setting
Special features	timestamping, latch last edge
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
Approvals/markings	CE

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