VEGA VEGABAR 81 Modbus and Levelmaster protocol - Operating Instructions - Manual (Page 75)

75
10 Supplement
VEGABAR 81 • Modbus and Levelmaster protocol
46293-EN-131107
10.6 Configuration of typical Modbus hosts
Fisher ROC 809
Wiring plan
+
+
power supply
MODBU
S
D0
D1
IS GND
US
B
B
COM
Z
Y
A
(Rx/Tx -)
(Rx/Tx +)
1
2
3
13
45
2o
ff
on
(
)
( )
(-)
(-)
+8 +30 Vdc
to
GND
Fig. 34: Connection of VEGABAR 81 to RTU Fisher ROC 809
1 VEGABAR 81
2 RTU Fisher ROC 809
3 Voltage supply
Parameter
Parameter Value
Baud Rate 9600
Floating Point Format Code 0
RTU Data Type Conversion Code 66
Input Register Base Number 0
The basic number of the input registers is always added to the input register address of VEGABAR
81.
Address 1300 must hence be entered as register address for RTU Fisher ROC 809.