Siemens SITRANS P DS III - Page 97

Operator control functions via PROFIBUS
7.1 Communications structure for PROFIBUS PA
SITRANS P DS III with PROFIBUS PA
Operating Instructions, 06/2013, A5E00053276-07
97
Connection between blocks via parameters
The output values of the transducer blocks for pressure and electronics temperature can be
fed to the analog input and totalizer function blocks as input values for further processing. To
do this, the parameter "Channel" must be correctly set in each function block.
Table 7- 1 Connection between blocks
Transducer block
Output value
(Parameters)
Usable in the analog
input function block
Usable in the totalizer
function block
Pressure
Temperature
X
Secondary variable 1
X
Secondary variable 2
X
Measurement value
(primary variable)
X X
Secondary variable 3
X
X
Electronics temperature
Electronics temperature
X
Parameters for measured value display
The values of the following parameters from the measurement and function blocks can be
shown on the display. The parameter "Source for display" must be set appropriately.
Table 7- 2 Visualization on the display
Block
Parameter
Can be shown on the display
Pressure transducer block
Temperature
X
Secondary variable 1
X
Secondary variable 2
Measurement value
(primary variable)
X
Secondary variable 3
X
Raw pressure value
X
Electronics temperature transducer block
Electronics temperature
X
Analog input function block
Output
X
Totalizer function block Totalizer output X
See also
Measured value display (Page 82)
Cyclical data transfer (Page 159)
Acyclic data transfer (Page 164)