PeakTech 4145 Technical Guide

MAN 06 033774 – technical_guide_ DIRIS_A40_A41_C.doc40/Z41 - B 15/27
Reading of total active power (address Hex. 316) : P1 = - 1729 kW
Master request :
Slave
Function
Address
Address
Number of words
Number of words
CRC16
High-order
Low-order
High-order
Low-order
07
03
03
16
00
02
25ED
DIRIS reply:
Slave
Function
Number of
Word1
Word 2
CRC16
bytes
07
03
04
FFFD
5C89
5D06
4 294 794 377 kW/100
If the answer corresponds to a negative value, the answer, in decimal value, will be higher
than 2147 483 647.
In that case, it is necessary to convert the value in the following way:
First step: convert the value Hexadecimal into binary
Hexadecimal :
FFFD5C89
Binary :
1111 1111 1111 1101 0101 1100 1000 1001
Second step: reverse the binary value
Binary :
1111 1111 1111 1101 0101 1100 1000 1001
opposite :
0000 0000 0000 0010 1010 0011 0111 0110
Third step: Add + 1
opposite :
0000 0000 0000 0010 1010 0011 0111 0110
+1
Binary :
0000 0000 0000 0010 1010 0011 0111 0111
Last step: convert in decimal to get the final result
Binary :
0000 0000 0000 0010 1010 0011 0111 0111
Decimal :
172919 kW/100

PeakTech 4145 Specifications

General

Brand	PeakTech
Model	4145
Category	Measuring Instruments
Language	English