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The simplest form of measurement is the so-called static measurement, in which the measured values of all measurement channels are updated asynchronously with an update rate of approx. 30 Hz. It is always active and requires no parameterization. This is completely sufficient for numerous measurement tasks.

 

In addition to static measurement, the Irinos system also offers the possibility of fast real-time measurement sampling up to 4000 measured values/s. All measuring channels connected via the EC-Link interface can be included at full speed. In addition, all digital inputs and outputs can be included.

 

All Irinos boxes on the EC-Link interface have the same system time called "EC-Link-time" (unit: µs). Technical deviations of the individual Irinos boxes from the EC-Link time are continuously corrected. This does not have to be parameterized or controlled by the user. In practice, the deviations are in the range of a few microseconds (µs).

The measured value sampling is triggered simultaneously for all Irinos boxes based on the EC-Link-time. The measured values are then temporarily stored in the internal buffer of the Irinos box and then merged with the other measured values by the master box. This allows the measured values of all channels to be recorded simultaneously at very high speed.

 

For a time-limited real-time measurement, the following applies: The real-time capability is independent of the number of probes, since each Irinos box has its own measurement value buffer. For example, all measurement channels can be samples simultaneously with a sampling rate of 4000 measurement values/s. The memory is dimensioned so that the measured values can be recorded for at least 10 seconds at the maximum sampling rate. If the sampling rate is lower, this time increases accordingly.

Only the transmission time to the PC depends on the number of channels and the measuring rate. Depending on the data type of the connected probes, between 80.000 and 200.000 measured values/s can be transmitted as a rough guide value.

 

For an endless real-time measurement, the following applies: The maximum sampling rate depends on the number of channels. The following maximum sampling rates are recommended: