VEGA WEIGHTRAC 31 Foundation Fieldbus - Manual (Page 69)

69
11 Supplement
WEIGHTRAC 31 • Foundation Fieldbus
42375-EN-131120
Revisions Data DD-Revision Rev_01
CFF-File 010101.cff
Device Revision 0101.ffo
0101.sym
Cff-Revision xx xx 01
Device software revision > 1.5.0
ITK (Interoperability Test Kit) Number 6.0.1
Electricial Characteristics Physicial Layer Type Low-power signaling, bus-pow-
ered, FISCO I.S.
Input Impedance > 3000 Ohms between 7.8 KHz -
39 KHz
Unbalanced Capacitance < 250 pF to ground from either in-
put terminal
Output Amplitude 0.8 V P-P
Electrical Connection 4 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
Diagnostics Standard Yes
Advanced Yes
Performance No
Function Blocks Instantiable No
General Information LAS (Link Active Scheduler) No
Master Capable No
Number of VCRs (Virtual Communication
Relationships)
24
Function block Analog Input (AI)
The function block "Analog Input (AI)" takes the original measured value selected by a Channel
Number and makes it available to additional function blocks on its output.