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 data | EJ1254 |
|---|---|
| Specification | similar to EN 61131-2, type 3, “0”: -3…5 V DC, “1”: 11…30 V DC, typ. 3 mA input current |
| Connection technology | 4-wire |
| 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 |
| Auxiliary power current | typ. 10 mA + load |
| Current consumption E-bus | typ. 135 mA |
| Electrical isolation | 500 V (E-bus/field potential) |
| Special features | timestamping, latch last edge |
| Weight | approx. 30 g |
| Operating temperature | -25…+60°C |
| Storage temperature | -40…+85°C |
| Relative humidity | 95%, no condensation |
| EMC immunity/emission | conforms to EN 61000-6-2/EN 61000-6-4 |
| Vibration/shock resistance | conforms to EN 60068-2-6/EN 60068-2-27 |
| Protect. rating/installation pos. | IP20/see documentation |
| Approvals/markings | CE |
| Housing data | EJ_12_16pin_Code13 |
|---|---|
| Weight | approx. 30 g |
| Protection rating | IP20 |
| Material | polycarbonate |
| Dimesnions | Width (single) | 12 mm |
| Dimensions | Height | 66 mm |
| Dimensions | Depth | 55 mm |
| Installation | 2 x 20-pin socket strip on signal distribution board |
| Connection technology | application-specific plug on the signal distribution board |
| Mechanical coding | yes |
| Position of the coding pins | 1, 3 |
| Material compliance | EJ1254 |
|---|---|
| CAS No. | 7439-92-1 |
| REACH SVHC | Lead |
| REACH Annex XVII | compliant |
| REACH Annex XIV | compliant |
| SCIP No. | SCIP submission in progress |
| POP | compliant |
| RoHS | compliant with exemption |
| RoHS exemption | 7a: 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-RoHS | www.beckhoff.com/china-rohs-io |
| CA Prop65 | www.beckhoff.com/prop65 |
| Disclaimer | This 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. |
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