YSI IQ SensorNet MIQ/A-PR Module - Manual (Page 6)

Overview MIQ/(A-)PR
6 ba76020e01 01/2012
1.2 PROFIBUS and IQ S ENSOR N ET system 2020 XT USB
System communication The functional units of the IQ S ENSOR N ET are connected with one
another via a common line (Fig. 1-2). The line consists of two wires and
a shield. It transports digital information between the controller and the
other modules. At the same time, the line is used to supply all modules
with electrical voltage from a power supply unit. The power supply unit
is only required for the power supply and is not used in the system
communication.
With the -PR option, the MIQ/(A-)PR module upgrades the system
communication by an interface to the PROFIBUS master. Via this
interface the data exchange with the PROFIBUS master takes place.
Fig. 1-2 Functional units of the IQ S ENSOR N ET with connection to the PROFIBUS
Note
All other general information on components, functions and operation
of the IQ S
ENSOR N ET system 2020 XT USB is given in the system
operating manual.
With the A option, the MIQ/(A-)PR module extends the IQ S ENSOR N ET
system by a fully automatic air pressure compensation for D.O. sensors
(see system operating manual).