Endress+Hauser PROline prosonic flow 93 Operating Instructions Manual page 103

PROline Prosonic Flow 93 PROFIBUS-DP/-PA
!
Endress+Hauser
Input Process parameter
byte
Status
–
volume flow difference
Average flow velocity
–
(Channel: 571)
– Status flow velocity
40, 41, 42, 43 Totalizer 1
44 Totalizer 1 status
45, 46, 47, 48 Totalizer 2
49 Totalizer 2 status
50, 51, 52, 53 Totalizer 3
54 Totalizer 3 status
Control variables for totalizers 1–3 (output data)
These functions allow totalizers 1–3 to be controlled from the automation system.
The following controls are possible: totalizing, resetting, activation of a predefined value,
balancing, totalisation of positive flow only, totalisation of negative flow only and
stopping of totalizing.
Data transfer from the automation system to Prosonic Flow 93 (totalizer controls)
Output Process
byte parameter
0 SET_TOT 1
2 SET_TOT 2
4 SET_TOT 3
1 MODE_TOT 1
3 MODE_TOT 2
5 MODE_TOT 3
Note!
x A control variable can be executed through the cyclic data exchange each time the
output byte changes from one bit pattern to any other bit pattern.
x It is only possible to preset a predefined totalizer value via the local operation or the
Class 2 master!
Access Comment/Data format
type
read Status code
32-bit floating point number
(IEEE-754)
read Illustrated
can be assigned as required!
read Status code
32-bit floating point number
read (IEEE-754)
Illustrated
read Status code
32-bit floating point number
read (IEEE-754)
Illustrated
read Status code
32-bit floating point number
read (IEEE-754)
Illustrated
read Status code
Access Comment/Control variable
type
write The following control variables can be
write entered for totalizers 1–3 using these
write parameters.
Control variable for SET_TOT:
0: Totalizing
1: Reset totalizer
2: Preset totalizer
write Control variable for MODE_TOT:
write 0: Balancing
write 1: Only positive flow detection
2: Only negative flow detection
3: Stop totalizing
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