Messtechnik Sachs Irinos IR, User Manual

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Irinos IR Users Manual © 2015 - 2016 Messtechnik Sachs GmbH, Germany
System overview
3.3 Synchronisation
All Irinos-Boxes have the same system time, called "ILink-
Time" (Unit: µs). Time-deviations between different Irinos-Boxes,
which cannot be completely avoided, are constantly eliminated. The
end user does neither have to parametrize nor to check this. In
practice these deviations are less than 200 ns.
The data acquisition of all Irinos-Boxes is started simultaneously
based on the ILink-Time. The measurement values are stored in the
internal memory of the Irinos-Box and then transferred to the
Master-Box. Here they are merged to a single block of
measurement values. This allows a fast simultaneous data
acquisition of all channels.
The realtime capability is independent of the number of
measurement channels, because each Irinos-Box has its
own buffer for measurement values.
3.4 Master vs. integrated Master vs. Slave
Each Irinos-System has exactly one "Master-Box". Ethernet
connection to the PC is made via this box. All other (optional) Irinos-
Boxes are called "Slave-Box".
Each Irinos-System has exactly one Master-Box. Multiple
Master-Boxes are not allowed.
A Master-Box has an Ethernet interface (connector M12,
waterblue) and an ILink interface (2x DSUB 15-pin).
A Slave-Box only has an ILink interface.
Regarding the Master-Box, a difference has to be made between a
separate Master-Box an a so-called "integrated Master".
The purpose of a separate Master-Box (IR-MASTER) mainly is the
communication to the PC. Depending on the variant, it has digital in-
and outputs and analogue inputs. Typically it is used together with at
least one Slave-Box.
The integrated Master is a measurement Box with integrated