2-channel digital output terminal with timestamp, tri-state EL2252
High impedance
Signal LED 2
High impedance
Signal LED 1 
Power contact
+24 V
Power contact 0 V
Power contact PE
Output 1
Output 2
+24 V
0 V
Top view 
Contact assembly 
XFC – eXtreme Fast Control
extended shock and vibration range

EL2252 | 2-channel digital output terminal with timestamp, tri-state

The EL2252 digital output terminal connects the binary control output signals at the process level with electrical isolation. The outputs are switched precisely synchronised with the transferred timestamp, which has a resolution of 10 ns. This technology enables output switching times to be specified precisely across the system. The distributed clocks are used for reference. In conjunction with the EL1252 (digital input terminal with timestamp), the EL2252 enables responses with equidistant time intervals, largely independent of the bus cycle time. Each output can be switched to high resistance individually.

Technical data EL2252 | ES2252
Connection technology 4-wire
Number of outputs 2
Nominal voltage 24 V DC (-15 %/+20 %)
Load type ohmic, inductive, lamp load
Precision of timestamp in the terminal 10 ns
Resolution timestamp 1 ns
Distributed clocks yes
Distributed clock precision << 1 µs
Output delay through 24 V power section typ. < 1 µs
Max. output current 0.5 A (short-circuit proof) per channel
Output stage push-pull
Short-circuit current typ. < 1.5 A
Reverse voltage protection yes
Current limitation typ. 1.5 A
Breaking energy < 150 mJ/channel
Switching times typ. TON: < 1 µs, typ. TOFF: < 1 µs
Current consumption E-bus typ. 130 mA
Electrical isolation 500 V (E-bus/field potential)
Current consumption power contacts typ. 30 mA + load
Bit width in the process image 8 bit output (ch. 1 + ch. 2), 9 byte timestamp
Special features Timestamping, outputs can be connected in high-resistance mode, short-circuit proof.
Weight approx. 60 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
Ex-Marking II 3 G Ex nA IIC T4 Gc
Further information  
XFC eXtreme Fast Control Technology