－
71
－
6) Moving average
Entering method of the formula
AVE (X#T)
AVEH (X#T)
X: Data channel number, T: Time series interval (second)
Mean value of past T seconds is calculated.
Difference between AVE and AVEH are the following.
AVE
AVEH
Sampling cycle
1 second
0.1 seconds
Range of T
1 to 3600
1 to 300
7) Past data
Entering method of the formula
OLD (X#T)
OLDH (X#T)
X: Data channel number, T: Time in which go back (second)
Mean value of past T seconds is calculated.
Difference between OLD and OLDH are the following.
OLD
OLDH
Sampling cycle
1 second
0.1 seconds
Range of T
1 to 3600
1 to 300
8) First-order leg filter
Entering method of the formula
IIR (X#T)
X: Data channel number, T: Time constant (second)
First-order calculate is performed in the data of channel X.
Contents of calculation
｛
dt÷(dt+t)
｝
×
（
x-d
）＋
d
dt: Sampling cycle (0.1 seconds fixed), t: time constant, x: current value of channel X, d: previous
calculation result
9) Increment per time
Entering method of the formula
PLS (X#T)
X: Data channel number, T: Unit time (second)
Calculate increment per unit time T. X is specified from the channel that is set totalizer or the channel
that is selected pulse range in 121 to 128.
As for the PLS function, when the totalized value is reset excluding reset by the overflow at
time etc. , the data when resetting it becomes illegal (To do the same processing as overflow
reset internally). Please do the operation construction noting the resetting operation when
using it.
