Endress+Hauser prowirl 77 - Page 21

The following configurations are possible with Prowirl 77:
Configuration GSD block description Data length
Flow with status +
totalizer with status +
control (= maximum configuration)
Flow Rate Block
Total Volume Block
Total Volume Reset
11 Bytes
Flow with status Flow Rate Block 5 Bytes
Flow with status +
totalizer with status
Flow Rate Block
Total Volume Block
10 Bytes
Totalizer with status
Free Place
Total Volume Block
6 Bytes
Totalizer with status +
control
Free Place
Total Volume Block
Total Volume Reset
7 Bytes
When followed by other configuration data, inactive data blocks have to be indicated
with zero (0) “Free Place” as place holder in the configuration data string. Zeros at the
end of the configuration data can be left out.
Example in a project management software:
If no other configuration blocks are required, then FREE_PLACE
is not needed for those data blocks not required:
Example 1:
With this configuration, the following
blocks will be transmitted to the
DP master, with a data length of 10 input
bytes and 1 output byte:
– Flow + Status
– Totalizer + Status
– Totalizer reset
Example 2:
In this configuration, Flow + Status
are transmitted to the DP master.
Prowirl 77 PROFIBUS-PA 5 Communication
Endress+Hauser 21