VEGA VEGAFLEX 81 Foundation Fieldbus Coax probe - Handbuch (Seite 76)

76
11 Anhang
VEGAFLEX 81 • Foundation Fieldbus
44215-DE-130821
Electricial Characteristics Physicial Layer Type Low-power signaling, bus-po-
wered, FISCO I.S.
Input Impedance > 3000 Ohms between
7.8 KHz - 39 KHz
Unbalanced Capacitance < 250 pF to ground from either
input terminal
Output Amplitude 0.8 V P-P
Electrical Connection 2 Wire
Polarity Insensitive Yes
Max. Current Load 10 mA
Device minimum operating voltage 9 V
Transmitter Function Blocks Resource Block (RB) 1
Transducer Block (TB) 1
Standard Block (AI) 3
Execution Time 30 mS
Advanced Function Blocks Discret Input (DI) Yes
PID Control Yes
Output Splitter (OS) Yes
Signal Characterizer (SC) Yes
Integrator Yes
Input Selector (IS) Yes
Arithmetic (AR) Yes
Diagnostics Standard Yes
Advanced Yes
Performance No
Function Blocks Instantiable No
General Information LAS (Link Active Scheduler) Yes
Master Capable Yes
Number of VCRs (Virtual Communication Re-
lationships)
24
Funktionsblöcke
Transducer Block (TB)
Der Transducer Block "Analog Input (AI)" nimmt den originären Messwert (Secondary Value 2),
macht den Min.-/Max.-Abgleich (Secondary Value 1), macht eine Linearisierung (Primary Value)
und stellt die Werte an seinem Ausgang für weitere Funktionsblöcke zur Verfügung.