8-channel digital input terminal with multi-timestamping EL1258
Signal LEDs
1…8
Power contact
+24 V
Power contact 0 V
Input 1 
Input 2 
Input 3 
Input 4 
Input 5 
Input 6 
Input 7 
Input 8 
+24 V
+24 V
+24 V
+24 V
+24 V
+24 V
+24 V
+24 V
Top view 
Contact assembly 
XFC – eXtreme Fast Control
extended shock and vibration range

EL1258 | 8-channel digital input terminal with multi-timestamping

The 8-channel digital input terminal EL1258 acquires fast binary control signals from the process level and transmits them electrically isolated to the controller. In comparison with the EL1252, the EL1258 not only offers a higher channel density, but thanks to the multi-timestamping function also a higher performance. Whereas the EL1252 can accept one edge change with timestamp per bus cycle, the EL1258 offers the possibility to register up to 32 events with timestamps. The reduced timestamp width of 32 bits, which corresponds to a resolution of 4.29 seconds, does not result in functional restrictions for most applications. Through the distributed clocks system, the EL1258 is synchronised with other EtherCAT devices, so that events in the whole system will be measured with a uniform time base.

Technical data EL1258
Connection technology 2-wire
Number of inputs 8
Nominal voltage 24 V DC (-15 %/+20 %)
“0“ signal voltage -3…+5 V (IEC 61131-2, type 1/3)
“1“ signal voltage 11…30 V (IEC 61131-2, type 1/3)
Input current typ. 3 mA (EN 61131-2, type 1/3)
Input filter typ. < 1 µs
Internal sampling/execution < 10…40 µs, corresponds to 100…25 k detectable edges/s, dependent on configuration
Distributed clock precision << 1 µs
Distributed clocks yes
Current consumption power contacts typ. 6 mA
Current consumption E-bus typ. 130 mA
Electrical isolation 500 V (E-bus/field potential)
Configuration no address or configuration setting
Special features multi-timestamping
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 CE, UL
Further information  
XFC eXtreme Fast Control Technology