Vega VEGABAR 81 Modbus and Levelmaster protocol - Opera Bedienungsanleitung PDF herunterladen (Seite 67)

10 Supplement

VEGABAR 81 • Modbus and Levelmaster protocol

46293-EN-131107

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 Modbus RTU commands

FC3 Read Holding Register

With this command, any number (1-127) of holding registers can be read out. The start register,

from which the readout should start, and the number of registers are transmitted.

1 2 ... 62 63 64 65 66 67 68 69 70 71 72 ... 91 92

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Vega VEGABAR 81 Modbus and Levelmaster protocol - Opera Bedienungsanleitung Seite 67