59
14 Supplement
VEGAPULS C 23 • Modbus and Levelmaster protocol
58349-EN-200806
14.10CongurationoftypicalModbushosts
Fisher ROC 809
B
COM
Z
Y
A
(Rx/Tx -)
(Rx/Tx +)
3
2
1
+8 +30
Vdc
to
GND
Fig. 28: Connection of VEGAPULS C 23 to RTU Fisher ROC 809
1 VEGAPULS C 23
2 RTU Fisher ROC 809
3 Voltage supply
Parameters for Modbus Hosts
Parameter Value Fisher
ROC 809
Value ABB Total
Flow
Value Fisher
Thermo Elec-
tron Autopilot
Value Fisher
Bristol Control-
Wave Micro
Value Scada-
Pack
Baud Rate 9600 9600 9600 9600 9600
Floating Point
Format Code
0 0 0 2 (FC4) 0
RTU Data Type Conversion Code
66
16 Bit Modicon IEE Fit 2R 32-bit registers
as 2 16-bit reg-
isters
Floating Point
Input Register
Base Number
0 1 0 1 30001
The basic number of the input registers is always added to the input register address of VEGAPULS
C 23.
This results in the following constellations:
•
Fisher ROC 809 - Register address for 1300 is address 1300
•
ABB Total Flow - Register address for 1302 is address 1303
•
Thermo Electron Autopilot - Register address for 1300 is address 1300
•
Bristol ControlWave Micro - Register address for 1302 is address 1303
•
ScadaPack - Register address for 1302 is address 31303