VEGA VEGABAR 81 Modbus and Levelmaster protocol - Operating Instructions - Manuale (Pagina 68)

68
10 Appendice
VEGABAR 81 • Protocollo Modbus e LevelMaster
46293-IT
-131205
Register Name Register Number Type Note
SV 2104 DWord Secondary Variable in Byte Order DCBA (Little En-
dian)
TV 2106 DWord Third Variable in Byte Order ABCD DCBA (Little En-
dian)
QV 2108 DWord Quarternary Variable in Byte Order DCBA (Little En-
dian)
Status 2200 DWord See Register 100
PV 2202 DWord Primary Variable in Byte Order BACD (Middle Endian)
SV 2204 DWord Secondary Variable in Byte Order BACD (Middle En-
dian)
TV 2206 DWord Third Variable in Byte Order BACD (Middle Endian)
QV 2208 DWord Quarternary Variable in Byte Order BACD (Middle En-
dian)
Unit Codes for Register 104, 108, 112, 116
Unit Code Measurement Unit
32 Degree Celsius
33 Degree Fahrenheit
40 US Gallon
41 Liters
42 Imperial Gallons
43 Cubic Meters
44 Feet
45 Meters
46 Barrels
47 Inches
48 Centimeters
49 Millimeters
111 Cubic Yards
112 Cubic Feet
113 Cubic Inches
10.4 Comandi RTU Modbus
FC3 Read Holding Register
Tramite questo comando è possibile leggere un numero qualsiasi (1-127) di holding register. Vengo-
no trasmessi il registro iniziale, a partire dal quale va effettuta la lettura, e il numero di registri.