36
5 Connecting to power supply and bus system
VEGAPULS 69 • Modbus and Levelmaster protocol
47252-EN-210205
Terminal
Function
Polarity
2
Voltage supply
-
3
Modbus signal D0
+
4
Modbus signal D1
-
5
Function ground when installing ac-
cording to CSA (Canadian Standards
Association)
5.4 Switch-on phase
After connecting VEGAPULS 69 to the bus system, the device first
performs a self-test:
•
Internal check of the electronics
•
Indication of the status message "
F 105 Determine measured
value
" on the display or PC
•
Status byte goes to fault value
Then the actual measured value is output to the signal cable. The
value takes into account settings that have already been carried out,
e.g. default setting.
