DIRIS A40/A41 - RS485 - JBUS/MODBUS
®
GB
27
DIRIS A40/A41 - Ref.: 536 103 B GB
COMMUNICATION
LIST OF PARAMETERS TO BE DISPLAYED (FUNCTION 3)
Zone size: 103 words (decimal) or 67 (hexadecimal).
Example :
To read 177 645 kWh, the following message should
be sent :
Decimal Hexa. Number Text Unit
address address of words
1884 75C 1
Mean positive active power between 2 signals
W
1885 75D 1
Mean negative active power between 2 signals
W
1886 75E 1
Mean positive reactive power between 2 signals
var
1887 75F 1
Mean negative reactive power between 2 signals
var
1888 760 1 Reserved –
1889 761 1 Reserved –
1890 762 1 Average values In mA
1891 763 1 In max mA
1892 764 1
Predicted total active power
W
1893 765 1
Predicted total reactive power
var
1894 766 1
Predicted total apparent power
VA
Example:
To display all the values for DIRIS number 5 in one
inquiry, the following frame should be sent:
DIRIS A40/A41 reply:
Slave
05
Function
03
Number
of bytes
04
Word 1 < 10000
IDDD
Word 2 > 10000
11
CRC 16
6FD6
7645 17
Slave
05
Function
03
High-order
address
07
Low-order
address
2B
High-order
word n°
00
Low-order
word n°
02
CRC 16
B4F3
Slave
05
Function
03
High-order
address
07
Low-order
address
00
High-order
word n°
00
Low-order
word n°
64
CRC 16
44D1
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