VEGA VEGABAR 87 Modbus and Levelmaster protocol - Operating Instructions - Manual (Page 75)

75
10 Supplement
VEGABAR 87 • Modbus and Levelmaster protocol
46297-EN-131107
Bristol ControlWave Micro
Wiring plan
+
+
power supply
MODBU
S
D0
D1
IS GND
US
B
1
2
3
13
45
2o
ff
on
(
)
( )
(-)
(-)
+8 +30 Vdc
to
GND
1 +SV
RS 485 on COM1
2 RX-
5 RXT
6 TXT
3 TX-
4 GND
7 not used
8 not used
Fig. 33: Connection of VEGABAR 87 to RTU Bristol ControlWave Micro
1 VEGABAR 87
2 RTU Bristol ControlWave Micro
3 Voltage supply
Parameter
Parameter Value
Baud Rate 9600
Floating Point Format Code 2 (FC4)
RTU Data Type 32-bit registers as 2 16-bit registers
Input Register Base Number 1
The basic number of the input registers is always added to the input register address of VEGABAR
87.
Address 1303 must hence be entered as register address for 1302 for RTU Bristol ControlWave
Micro.