Beckhoff EL47 Series, Documentation

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Product overview
EL47xx 15 Version: 2.7
2 Product overview
2.1 Introduction
Fig. 10: EL4712, EL4732
Two-channel analog output terminal with oversampling
For each microcycle, the EtherCAT Terminal receives a process data block which are output consecutively.
The timebase of the terminal can be synchronized precisely with other EtherCAT devices via distributed
clocks. This procedure enables the temporal resolution of the analog output signals to be increased to n
times the bus cycle time.
In conjunction with the EL37xx (analog input terminal with oversampling), responses with equidistant time
intervals, e.g. in the event of a threshold value being exceeded, become possible. The EL4732 device can
output a maximum of 100,000 values (100 ksamples/s) per channel and second.
EL4712; 0 ... 20 mA output current
The analog output terminal generates signals in the range 0 to 20 mA. The current is set by the process with
a resolution of 16 bit (including sign) and output in electrically isolated form.
The output channels have a common ground potential. The output data are output with a configurable,
integer multiple (oversampling factor: n) of the bus cycle time (n microcycles per bus cycle).
EL4732; -10 ... +10 V output voltage
The analog output terminal generates signals in the range -10 to +10 V. The voltage is set by the process
with a resolution of 16 bit and output in electrically isolated form.
The output channels have a common ground potential. The output data are output with a configurable,
integer multiple (oversampling factor: n) of the bus cycle time (n microcycles per bus cycle).
Quick links
• EtherCAT basics
• EL47xx basics [
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• Process data and configuration [
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145]
• Application notes [ } 158]
• Sample program (https://infosys.beckhoff.com/content/1033/el47xx/Resources/zip/2409495947.zip)