VEGA VEGAPULS 67 (≥ 2.0.0 - ≥ 4.0.0) Modbus and Levelmaster protocol - Manual (Página 71)

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11 Anexo
VEGAPULS 67 • Protocolo Modbus y Levelmaster
41369-ES-121113
Register Name Register Number Type Note
SV 2104 DWord Secondary Variable in Byte-Reihenfolge DCBA (Litt-
le Endian)
TV 2106 DWord Third Variable in Byte-Reihenfolge ABCD DCBA (Litt-
le Endian)
QV 2108 DWord Quarternary Variable in Byte-Reihenfolge DCBA (Litt-
le Endian)
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
11.4 Modbus instrucciones RTU
FC3 Read Holding Register
Con esa instrucción se puede leer una cantidad arbitraria (1-127) en los registros holding. Se trans-
miten el registro inicial, desde el que hay que leer y la cantidad de registros.
Request:
Parameter Length Code/Data
Function Code 1 Byte 0x03