ABB WaterMaster Zusatzhandbuch Seite 49

WaterMaster
Elektromagnetischer Durchflussmesser
SP
PV_SCALE
OUT_SCALE
READBACK
Abb. A.8 AO Blockalgorithmus
IM/WMPBS-DE Rev. A
Anhang A – PROFIBUS-PA-Blockstrukturdiagramme
FB-Algorithmus
Temp = (SP – EU 0%) / (EU 100% – EU 0%)
PV_SCALE PV_SCALE PV_SCALE
OUT = Temp (EU 100% – EU 0%) + EU 0%
OUT_SCALE
Temp = (PV – EU 0%) / (EU 100% – EU 0%)
OUT_SCALE
READBACK = Temp (EU 100% – EU 0%) + EU 0%
PV_SCALE PV_SCALE PV_SCALE
OUT_SCALE OUT_SCALE
OUT_SCALE OUT_SCALE
OUT
PV
47