Siemens SENTRON PAC4220 - A.1.8 Odd Harmonics with Time Stamp

O󹪜set
FC0x03
FC0x04
Length Name Format Unit Access
See
f
ormula
2 nt
h Harmonic voltage L1-L2 FLOAT % R
See
formula
2 nt
h Harmonic voltage L2-L3 FLOAT % R
See
formula
2 nt
h Harmonic voltage L3-L1 FLOAT % R
A.1.8 Odd harmonics with a time stamp with the function codes 0x03 and 0x04
Formula
The
o󹪜sets of the 5thto 65thodd harmonics can be calculated using the formula below:
2IIVHWRIQWKKDUPRQLF RIIVHWRIUGKDUPRQLFOHQJ
WKb[Q෥
nth - stands for the number of the harmonic
Exam
ple 1
Calculation of o󹪜set "Max. 5th harmonic voltage L1-N with time":
• 12999 + (6 + 3) x (5 − 3) = 13017
• O󹪜set of "Max. 5th harmonic voltage L1-N with time" is 13017.
Example 2
Calculation of o󹪜set of "Max. 31st harmonic voltage L3-N with time":
• 13011 + (6 + 3) x (31 − 3) = 13263
• O󹪜set of "Max. 31st harmonic voltage L3-N with time" is 13263.
Tables
O󹪜set
FC0x03
FC0x04
Length Name Format Unit Access
12999 6 Max. 3rd harmonic voltage L1-N with time FLOAT+TIME‐
S
T
AMP
% R
13005 6 Max. 3rd harmonic voltage L2-N with time FLOAT+TIME‐
ST
AMP
% R
13011 6 Max. 3rd harmonic voltage L3-N with time FLOAT+TIME‐
ST
AMP
% R
See
formula
6 Max. nt
h harmonic voltage L1-N with time FLOAT+TIME‐
STAMP
% R
Appendix
A.1Modbus
PAC4220
124 Equipment Manual, L1V30827278B-01