64
Channel data operation functions
The following calculations can also be done:
In the table, X represents the channel number.
*1. The analog input channel or contact input channel can be specified.
*2. Do not use the same function two times or more in one formula, or the results will not be
calculated correctly.
Note: The operation result of the specified destination is used as the channel data operation
function. If a formula makes use of calculation results from a channel whose number is
greater than the channel currently being processed, the calculation results obtained
previously from the designated channel are used.
System information acquisition function
Symbol
Example
Remarks
Input data
CH
CH(
X
)
See the value before the
operation of the specified
channel. *1
Calculation result
data
PCH
PCH(
X
)
Previous calculated
result data
OCH
OCH(
X
)
Data at the previous scanning
ITG
ITG(
X
)
Totalization
(integration)
ITG24
ITG24(
X
)
See (2) below
F value
FV
FV(
X#To#Z#R)
See (3) below
Relative humidity
RH
RH(
D#W
)
See (4) below
Dew-point
temperature
DEW
DEW(
T#H
)
See (5) below
Moving average (1
hour)
AVE
AVE（X#T）
*2
Moving average (5
min)
AVEH
AVEH (X#T)
Past data (1 hour)
OLD
OLD（X#T）
*2
Past data (5 min)
OLDH
OLDH（X#T）
First delay filter
IIR
IIR（X#T）
*2
Symbol
Example
Remarks
CF card remaining amount
CF
CF(
A
)
A = Unit of the remaining
amount:
0: Megabytes
1: Minutes
2: Hours
3: Days
