Beckhoff EL1258, Документация

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Product overview
EL125x, EL2258 15 Version: 2.5
Fig. 11: EL2258
Digital input/output terminals with timestamp
The 8-channel digital input terminal EL1258 records fast binary control signals from the process level and
transfers them electrically isolated to the controller. In contrast to the EL1252 with two channels the EL1258
has eight channels and a lower sampling rate. In addition, the EL1258 offers the option of logging several
changes of the input signal per PLC cycle and to transfer these to the controller (MultiTimeStamping). The
EL1258 is synchronized with other EtherCAT devices through the distributed clocks system, so that events in
the whole system can be measured with a uniform timebase.
The 8-channel digital output terminal EL2258 switches the binary output signals of the controller electrically
isolated from the process level. Up to 10 switching orders per PLC cycle can be transferred to the terminal.
These are output with an accuracy of up to 10 µs (depending on the selected process image). The
distributed clocks are used as time reference. In conjunction with timestamp input terminals the EL2258
enables responses at equidistant intervals that are largely independent of the bus cycle time.
The 16-channel digital EtherCAT Terminal EL1259 combines the function of the EL1258 – eight timestamp
inputs – with those of the EL2258 – eight timestamp outputs. The high channel density in conjunction with
time stamping of the signals enables fast, efficient processes through optimized sensor and actuator control.
The EL1259 is also synchronized with other devices through the distributed clocks system, so that events in
the whole system can be measured with a uniform timebase.
Quick-Links
• EtherCAT basics [
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• LEDs and connection [
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• Commissioning [ } 48]