83
4
Quadrant
Energy Analyzer
4
Quadrant
Energy Analyzer
SECTION 4 MODBUS PROTOCOL
BÖLÜM 4 MODBUS PROTOCOL
4.1 RS485 Wiring Diagram
RS485 WIRING DIAGRAM
Any
device
Terminating
resistor
120Ω
120Ω
Terminating
resistor
Fig. 4-1
RS485 Wiring Diagram
4.2 Computer Connection
KLEA can communicate with PCs via USB-RS85 or RS232-RS485 converters.
PC
USB-RS485 or RS232-RS485
converter
Fig. 4-2
Connection of KLEA to a PC
4.3 Message Format and Data Types of ModeBUS-RTU Protocol
KLEA implements modebus RTU protocol. Modebus RTU message format is
as follows
Tablo 4-1 Message Format
Start
Address
Function
Data
CRC
End
≥ 3.5 byte
1 byte
1 byte
0-252 byte
2 byte
≥ 3.5 byte
Содержание Klea 320P-D
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Страница 8: ...8 4Quadrant Energy Analyzer SECTION 1 GENERAL INFORMATION 4Quadrant Energy Analyzer...
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Страница 21: ...21 4Quadrant Energy Analyzer SECTION 3 MENUS 4Quadrant Energy Analyzer...
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Страница 123: ...123 4Quadrant Energy Analyzer SECTION 6 TECHNICAL SPECIFICATIONS 4Quadrant Energy Analyzer...