26
5 Connecting to the bus system
VEGAPULS 65 • Foundation Fieldbus
36518-EN-140209
5.7 Wiring plan - version IP 66/IP 68, 1 bar
1
2
Fig. 22: Wire assignment in permanently connected connection cable
1 brown (+) and blue (-) to power supply or to the processing system
2 Shielding
5.8 Switch-on phase
After VEGAPULS 65 is connected to the bus system, the instrument
carries out a self-test for approx. 30 seconds. The following steps are
carried out:
•
Internal check of the electronics
•
Indication of the instrument type, hardware and software version,
measurement loop name on the display or PC
•
Indication of the status message "
F 105 Determine measured
value
" on the display or PC
•
Status byte goes briefly to fault value
As soon as a plausible measured value is found, it is outputted to the
signal cable. The value corresponds to the actual level as well as the
settings already carried out, e.g. factory settings.
Wire assignment, con-
nection cable
