8-channel digital input terminal 24 V DC, negative switching EL1088
Signal LED 8
Signal LED6
Signal LED 4
Signal LED2
Signal LED7 
Signal LED5 
Signal LED3 
Signal LED1 
Power contact
+24 V
Power contact 0 V
Input 1
Input 3
Input 5
Input 7
Input 2
Input 4
Input 6
Input 8
Top view 
Contact assembly 
extended shock and vibration range

EL1088 | 8-channel digital input terminal 24 V DC, negative switching

The EL1088 digital input terminal acquires the binary control signals from the process level and transmits them, in an electrically isolated form, to the higher-level automation unit. The 8-channel EL1088 is suitable for multi-channel sensors with single-wire connections. The EtherCAT Terminal indicates its signal state by means of light emitting diodes.

Technical data EL1088 | ES1088
Connection technology 1-wire
Specification negative switching “0”: 18…30 V DC, “1”: 0…7 V DC, typ. 3 mA input current
Number of inputs 8
Nominal voltage 24 V DC (-15 %/+20 %)
“0“ signal voltage 18…30 V
“1“ signal voltage 0…7 V
Input current typ. 3 mA
Input filter typ. 3.0 ms
Distributed clocks
Current consumption power contacts typ. 25 mA
Current consumption E-bus typ. 90 mA
Electrical isolation 500 V (E-bus/field potential)
Bit width in the process image 8 inputs
Configuration no address or configuration setting
Weight approx. 50 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/see documentation
Pluggable wiring for all ESxxxx terminals
Approvals CE, UL, Ex