During measurements within the iba modular system, where signals of different input modules are to be compared to each other, it has to be observed that the measurement delays of the ibaMS8xIEPE module are increased compared to the other input modules in the system.
Due to the delta-sigma converter used in the input circuit, the ibaMS8xIEPE module causes an internal delay of 37 * sampling time.
Other iba input modules do not have such a delay.
This leads to time differences when signals of the IEPE module are to be compared with those of other input modules within a system.
This time delay can be compensated if necessary. Three options are available:
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In a subsequent offline analysis with ibaAnalyzer, the signal can be shifted by 37 * sampling time with the function Shl().
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During the running acquisition (online), the signals of the other input modules to be compared can be delayed by 37 * sampling time in ibaPDA with the help of a virtual module and the function Delay().
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Four of the eight input channels of the IEPE module (channel 01, 03, 05 and 07) can also be used as analog inputs with 24 V. This measurement mode "AI-24 V DC" is configured via the iba application.
Signals measured via these inputs have the same delay as IEPE signals at the other inputs.