Endress+Hauser PROline prosonic flow 93 Operating Instructions Manual page 105

PROline Prosonic Flow 93 PROFIBUS-DP/-PA
!
Endress+Hauser
Control variables (output data) manufacturer-specific
Prosonic Flow 93 is capable of processing control variables (output data) during cyclic
data exchange. An example of this could be activating positive zero return.
The following table shows the control variables (output data) that can be transmitted to
Prosonic Flow 93.
Data transfer from the automation system to Prosonic Flow 93 (control)
Output Process
byte parameter
11 Control
variable
Note!
A control variable can be executed via the cyclic data exchange each time the output
byte changes from "0" to another bit pattern. The transition from any bit pattern to "0"
will not have any effect.
Factory settings for the cyclic measured variables
The following measured variables are configured in Prosonic Flow 93 at the factory:
x Volume flow channel 1 o AI 1
x Sound velocity channel 1 o AI 2
x Flow velocity channel 1 o AI 3
x Volume flow channel 2 o AI 4
x Sound velocity channel 2 o AI 5
x Flow velocity channel 2 o AI 6
x Average volume flow o AI 7
x Average sound velocity o AI 8
x Totalizer 1 (with control variable SET_TOT and MODE_TOT)
x Totalizer 2 (with control variable SET_TOT and MODE_TOT)
x Totalizer 3 (with control variable SET_TOT and MODE_TOT)
x Display value
x Control (Control_Block), manufacturer-specific
If not all measured variables are required, you can use the placeholder
"EMPTY_MODULE" (0x00) – which can be found in the GSD file – to deactivate
individual measured variables using the configuration software of the Class 1 master.
Examples of configuration o Page 106 ff.
Access Comment/Control variable
type
write This parameter is manufacturer-specific and
can process the following control variables:
Control variable for the control:
o
0 1: Reserved
o
0 2: Positive zero return CH1 ON
o
0 3: Positive zero return CH1 OFF
o
0 4: Zero point adjustment CH1
o
0 5: Reserved
o
0 6: Reserved
o
0 7: Reserved
o
0 8: Measuring mode CH1 (unidirectional)
o
0 9: Measuring mode CH1 (bidirectional)
o
0 10-15: Reserved
o
0 16: Positive zero return CH2 ON
o
0 17: Positive zero return CH2 OFF
o
0 18: Zero point adjustment CH2
o
0 19-21: Reserved
o
0 22: Measuring mode CH2 (unidirectional)
o
0 22: Measuring mode CH2 (bidirectional)
6 Commissioning
Factory
setting
unit
–
105