wtw MIQ/2-PR, Operating Manual, Page: 17 / 28

MIQ/2-PR Interface for the PROFIBUS
17
ba75974e01 07/2012
Fig. 3-3 Course of the data transmission in the PROFIBUS master
Transmitted sensor data The following data for a sensor is transmitted to the PROFIBUS master
as a consistent data block:

Sensor number (Sxx)

Sensor status

Sensor model

Status info of sensors

Measuring mode

Measured value status (main and secondary measured value)

Main measured value

Secondary measured value
Read input data 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
Start
The transmitted data of all IQ S
ENSOR
N
ET
sensors is given
in the WTW document, "IQ S
ENSOR
N
ET
sensors: encoded
data for field bus communication" (ba75560de). It is con
-
stantly updated with the appearance of new sensors and
changes to the sensor software (insofar as they affect the
transferred sensor data). The latest version is available on
the Internet, in the download area for operating manuals.
Use the search function for the download and search for
"ba75560de".