Commissioning
EL34x3
149
Version: 4.4
Fig. 158: Recommended operating voltage range
The device documentation may contain particular specifications and timings, taking into account:
• Self-heating
• Rated voltage
• Insulating strength
• Edge steepness of the applied voltage or holding periods
• Normative environment (e.g. PELV)
5.6.7
Temporal aspects of analog/digital conversion
The conversion of the constant electrical input signal to a value-discrete digital and machine-readable form
takes place in the analog Beckhoff EL/KL/EP input modules with ADC (analog digital converter). Although
different ADC technologies are in use, from a user perspective they all have a common characteristic: after
the conversion a certain digital value is available in the controller for further processing. This digital value,
the so-called analog process data, has a fixed temporal relationship with the “original parameter”, i.e. the
electrical input value. Therefore, corresponding temporal characteristic data can be determined and specified
for Beckhoff analogue input devices.
This process involves several functional components, which act more or less strongly in every AI (analog
input) module:
• the electrical input circuit
• the analog/digital conversion
• the digital further processing
• the final provision of the process and diagnostic data for collection at the fieldbus (EtherCAT, K‑bus,
etc.)
Fig. 159: Signal processing analog input
Two aspects are crucial from a user perspective:
Содержание EL3413-0000
Страница 1: ...Documentation EL34x3 3 phase power measurement terminal 4 4 2019 03 28 Version Date ...
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Страница 6: ...Table of contents EL34x3 6 Version 4 4 ...
Страница 47: ...Installation EL34x3 47 Version 4 4 Fig 33 Other installation positions ...
Страница 91: ...Commissioning EL34x3 91 Version 4 4 Fig 88 Incorrect driver settings for the Ethernet port ...
Страница 102: ...Commissioning EL34x3 102 Version 4 4 Fig 107 EtherCAT terminal in the TwinCAT tree left TwinCAT 2 right TwinCAT 3 ...