VEGA POINTRAC 31 Profibus PA - Manual (Page 51)

51
11 Supplement
POINTRAC 31 • Profibus PA
43835-EN-131119
Device name Instrument ID GSD file name
VEGA Instrument class in
profile 3.02
VEGA Profile-specific
POINTRAC 31 0xD48 0x9702 VE010D48.GSD PA139702.GSD
WEIGHTRAC 31 0xCF8 0x9702 VE010CF8.GSD PA139702.GSD
Cyclical data traffic
The master class 1 (e.g. PLC) cyclically reads out measured values from the sensor during opera-
tion. The below block diagram below shows which data can be accessed by the PLC.
1 Electronic
Temperature
Count
Rate
Primary
Value
Fig. 19: POINTRAC 31: Block diagram with AI FB 1 … AI FB 3 OUT values
TB Transducer Block
FB 1 … FB 3 Function Block
1 Output value, adjustable (depending on instrument type and application - see following list)
•
Process temperature
•
Vapour density
•
Density
•
Volume flow
•
Ground
•
Belt speed
•
Loading
Module of the PA sensors
For the cyclic data traffic, POINTRAC 31 provides the following modules:
•
AI FB1 (OUT)
– Out value of the AI FB1 after scaling