35
SECTION 4 RS485 Communication
RS485 communication is built by using the “MODBUS RTU” protocol. The functions that are
supported are as follows:
• 03H function: Readable addresses can be read with using this function in the modbus
table.
• 10H function: Writable addresses can be written with using this function in the modbus
table.
Definitions:
• R / W
: The value in this address can be read and written.
• RO
: The value in this address can only be written.
• WO
: This address only allows writing.
• float
: 32 bit float number.
Modbus table is provided below:
address
register name
type
reading / writing
Writing condition
40001
Voltage
float
RO
40003
Current
float
RO
40005
Frequency
float
RO
40007
Cosφ
float
RO
40009
Power factor
float
RO
40011
Active power
float
RO
40013
Reactive power
float
RO
40015
Apparent power
float
RO
40017
THDV
float
RO
40019
THDI
float
RO
40021
Voltage Harmonic - 1
float
RO
40023
Voltage Harmonic - 3
float
RO
40025
Voltage Harmonic - 5
float
RO
40027
Voltage Harmonic - 7
float
RO
40029
Voltage Harmonic - 9
float
RO
40031
Voltage Harmonic - 11
float
RO
40033
Voltage Harmonic - 13
float
RO
40035
Voltage Harmonic - 15
float
RO
40037
Voltage Harmonic - 17
float
RO
40039
Voltage Harmonic - 19
float
RO
40041
Voltage Harmonic - 21
float
RO
40043
Voltage Harmonic - 23
float
RO
40045
Voltage Harmonic - 25
float
RO
40047
Voltage Harmonic - 27
float
RO
40049
Voltage Harmonic - 29
float
RO
40051
Voltage Harmonic - 31
float
RO
40053
Current Harmonic - 1
float
RO
SECTION 4 RS485 COMMUNICATION
Summary of Contents for POWYS 1012
Page 1: ...1 USER MANUAL Energy Analyzer...
Page 4: ...4 SECTION 1 GENERAL INFORMATION Enerji Analiz r...
Page 14: ...14 SECTION 2 INSTALLATION Energy Analyzer...
Page 17: ...17 SECTION 2 INSTALLATION 2 4 Dimensions mm Fig 2 3 Dimensions...
Page 18: ...18 SECTION 3 MENUS Energy Analyzer...
Page 34: ...34 SECTION 4 RS485 COMMUNICATION Energy Analyzer...
Page 42: ...42 SECTION 5 FACTORY PREVALUES AND SETT NG RANGES Energy Analyzer...
Page 47: ...47 SECTION 6 TECHNICAL SPECIFICATIONS Energy Analyzer...