EJ1254 | EtherCAT plug-in module, 4-channel digital input, 24 V DC, 1 µs, timestamp

EJ1254 | EtherCAT plug-in module, 4-channel digital input, 24 V DC, 1 µs, timestamp

EJ1254 | EtherCAT plug-in module, 4-channel digital input, 24 V DC, 1 µs, timestamp

EJ1254 | EtherCAT plug-in module, 4-channel digital input, 24 V DC, 1 µs, timestamp

EJ1254 | EtherCAT plug-in module, 4-channel digital input, 24 V DC, 1 µs, timestamp

EJ1254 | EtherCAT plug-in module, 4-channel digital input, 24 V DC, 1 µs, timestamp

EJ1254 | EtherCAT plug-in module, 4-channel digital input, 24 V DC, 1 µs, timestamp

EJ1254 | EtherCAT plug-in module, 4-channel digital input, 24 V DC, 1 µs, timestamp

EJ1254 | EtherCAT plug-in module, 4-channel digital input, 24 V DC, 1 µs, timestamp

EtherCAT plug-in modules of the EJ series

EtherCAT plug-in modules of the EJ series

The EJ1254 EtherCAT plug-in module acquires the fast binary 24 V control signals from the process level and transmits them, in an electrically isolated form, to the controller. The module has four channels that indicate their signal state via light emitting diodes. The signals are furnished with a time stamp that identifies the time of the last edge change with a resolution of 1 ns. With this XFC technology, signal characteristics can be traced exactly in time and correlated with the distributed clocks system-wide. With this technology, machine-wide parallel hardware wiring of digital inputs or encoder signals for synchronization purposes is often no longer required.

 

Special features:

  • suitable for particularly fast signals due to very low input delay
  • synchronized operation through distributed clocks XFC technology possible
  • support of XFC technology timestamp

Product status:

regular delivery

Product information

Technical dataEJ1254
Specificationsimilar to EN 61131-2, type 3, “0”: -3…5 V DC, “1”: 11…30 V DC, typ. 3 mA input current
Connection technology4-wire
Number of inputs4
Nominal voltage24 V DC (-15%/+20%)
“0” signal voltage-3…+5 V (similar to EN 61131-2, type 3)
“1” signal voltage11…30 V (similar to EN 61131-2, type 3)
Input currenttyp. 3 mA (similar to EN 61131-2, type 3)
Input filtertyp. < 1 µs
Resolution timestamp1 ns
Precision of timestamp in the terminal10 ns (+ input delay)
Distributed clock precision<< 1 µs
Input delay TON/TOFF< 1 µs
Distributed clocksyes
Time resolution signal1 ns
Auxiliary power currenttyp. 10 mA + load
Current consumption E-bustyp. 135 mA
Electrical isolation500 V (E-bus/field potential)
Special featurestimestamping, latch last edge
Weightapprox. 30 g
Operating temperature-25…+60°C
Storage temperature-40…+85°C
Relative humidity95%, no condensation
EMC immunity/emissionconforms to EN 61000-6-2/EN 61000-6-4
Vibration/shock resistanceconforms to EN 60068-2-6/EN 60068-2-27
Protect. rating/installation pos.IP20/see documentation
Approvals/markingsCE
Housing dataEJ_12_16pin_Code13
Weightapprox. 30 g
Protection ratingIP20
Materialpolycarbonate
Dimesnions | Width (single)12 mm
Dimensions | Height66 mm
Dimensions | Depth55 mm
Installation2 x 20-pin socket strip on signal distribution board
Connection technologyapplication-specific plug on the signal distribution board
Mechanical codingyes
Position of the coding pins1, 3
Material complianceEJ1254
CAS No.7439-92-1
REACH SVHCLead
REACH Annex XVIIcompliant
REACH Annex XIVcompliant
SCIP No.SCIP submission in progress
POPcompliant
RoHScompliant with exemption
RoHS exemption7a: Lead in solders with a high melting point with a minimum mass fraction of 85% lead, 7c-I: Lead-containing electrical and electronic components in glass and ceramic materials, excluding dielectric ceramics in capacitors
China-RoHSwww.beckhoff.com/china-rohs-io
CA Prop65www.beckhoff.com/prop65
DisclaimerThis statement and the information contained above are, to the best of our knowledge and belief, accurate, based on the information we have received from our suppliers. This information is in line with the current standard of technology and our suppliers’ technical documentation. The absence of the substances is not verified by Beckhoff Automation by means of analytical tests. When addressed to our customers any information contained in this document is subject to the terms and conditions expressed in the governing customer agreement. Our general terms and conditions apply.
Loading content ...

Loading content ...

Loading content ...

Loading content ...

© Beckhoff Automation 2026 - Terms of Use