YSI IQ SensorNet MIQ/A-PR Module - Manual (Page 24)

Data transmission MIQ/(A-)PR
24 ba76020e01 01/2012
The data is transmitted in two steps:
 The Profibus master transmits the request to the Profibus module to
supply data for the sensor with a certain sensor number.
 The Profibus module checks whether the requested sensor number
is present and returns the data for the sensor with the respective
sensor number to the Profibus master.
Fig. 4-1 Course of the data transmission in the PROFIBUS master
Read input data
Is sensor number identical
in input data and output data?
Is sensor number identical
in input data and output data?
Input data:
Process data for sensor
Input data:
Process data for sensor
Prompt data of a sensor
with a different sensor number?
Prompt data of a sensor
with a different sensor number?
Output data:
Allocate sensor number (Sxx) for a sensor
Output data:
Allocate sensor number (Sxx) for a sensor
no
no
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