Vega VEGAPULS 69, Руководство по эксплуатации

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10 Supplement
VEGAPULS 69 • Modbus and Levelmaster protocol
47252-EN-210205
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
10.5 Modbus RTU commands
FC3 Read Holding Register
With this command, any number (1-127) of holding registers is read out. The start register, from
which the readout should start, and the number of registers are transmitted.
Parameter Length Code/Data
Request: Function Code 1 Byte 0x03
Start Address 2 Bytes 0x0000 to 0xFFFF
Number of Registers 2 Bytes 1 to 127 (0x7D)
Response: Function Code 1 Byte 0x03
Start Address 2 Bytes 2*N
Register Value N*2 Bytes Data
FC4 Read Input Register
With this command, any number (1-127) of input registers is read out. The start register, from which
the readout should start, and the number of registers are transmitted.
Parameter Length Code/Data
Request: Function Code 1 Byte 0x04
Start Address 2 Bytes 0x0000 to 0xFFFF
Number of Registers N*2 Bytes 1 to 127 (0x7D)