13-15
4-4-3. Logical operation The logical operation for 1 or 0 is performed and the result is returned as 1 or 0.
Symbol Example
Remarks
Logical AND
AND
X
AND
Y
Logical OR
OR
X
OR
Y
Exclusive OR
XOR
X
XOR
Y
Negation NOT
NOT(
X
)
※
X and Y indicate the formula or the numeric value. Express X and Y as 0 or 1.
4-4-4. General calculation function The function calculation is performed.
Symbol Example
Remarks
Round up after the decimal
CEL
CEL(
X
)
Round down after the decimal
FLR
FLR(
X
)
Absolute value
ABS
ABS(
X
)
Square root
SQR
SQR(
X
)
Power of e
EXP
EXP(
X
)
Natural logarithm (The base is e)
LOG
LOG(
X
)
Common logarithm (The bottom is 10)
LOG10
LOG10(
X
)
※
X indicates the formula or the numeric value.
4-4-5. Channel data calculation function The function calculation is performed. When error data (OVER, UNDER etc.) is
included in the measured data, it becomes “CAL ER”.
Symbol Example
Remarks
Measured data
CH
CH(
X
)
X is channel No.
Calculated result data
PCH
PCH(
X
)
Previous calculated result data
OCH
OCH
（
X
）
Data at the previous scanning
Totalizer ITG
ITG(
X
)
Refer to 1) Totalizer operation
F-value FV
FV(
X
#To#
Z
#
R
)
Refer to 2) F-value
Relative humidity
RH
RH(
D
#
W
)
Refer to 3) Relative humidity
Dew-point temperature
DEW
DEW(
T
#
H
)
Refer to 4) Dew-point temperature
※
X indicate the channel number.
※
When the channel data calculation is specified for executing with the settings of the designated channel number, the
calculated results of the designated channel number are used. In addition, when the designated channel number is greater
than the channel number for calculation, the calculation results obtained previously at the designated channel are used.
1) Totalizer operation
For the totalizer, the ITG function or the ITG24 function is used.
Do not use the totalizing function more than two times in one formula. The results are not calculated correctly.
The totalizing function can be used in calculations other than the totalizer.
Example
：
ITG(1)+ITG(2),
ITG24(1)-ITG(1), ITG(1)/100
For the totalizer reset, refer to chapter 13.6.
1. Standard totalizing operation
The
totalized values are reset at the totalizer reset reference time and every interval.
Entering method of the formula
ITG(d)
d: Channel number to be totalized
Calculation contents
Ｄ
ｎ
＝
D
n-1
＋｛
(PV
ｎ
＋
PV
n-1
)
×
(T
n
-T
n-1
)
｝÷
2
Ｄ
ｎ
：
Totalizing result
D
n-1
：
Previous totalized result
PV
ｎ
：
Data to be totalized PV
n-1
：
Data totalized at the previous calculation
T
n
：
Time of calculation
T
n-1
：
Time of the previous calculation (before 0.1 seconds)
When error data (OVER, UNDER etc.) is included, the calculation is not performed and previous results are used.
Содержание LE5100
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