Yokogawa Button Operated MV2000 - Manual (Page 225)

10-11 M-4660
Computation and Report Functions (/M1 and /PM1 options)
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App
Index
CLOG Computation
Only data from measurement, computation, and external input channels can be used in a
CLOG computation. Up to 30 channels can be written inside the parentheses.
In the explanation below, an operator or function cannot be placed inside the
parentheses. Also, an expression can contain only one CLOG function.
CLOG.SUM( )
Sum value
(Syntax) CLOG.SUM(e1.e2.e4-e6)
(Condition) Determines the sum of the data of channels e1, e2, e4, e5, and e6 that
are measured at the same time.
CLOG.MAX( )
Maximum value
(Syntax) CLOG.MAX(e1.e2.e4-e6)
(Condition) Returns the maximum measured data value at a given point in time
from channels e1, e2, e4, e5, and e6.
CLOG.MIN( )
Minimum value
(Syntax) CLOG.MIN(e1.e2.e5.e7)
(Condition) Returns the minimum measured data value at a given point in time from
channels e1, e2, e5, and e7.
CLOG.AVE( )
Average value
(Syntax) CLOG.AVE(e1-e6)
(Condition) Returns the average of the measured data values of channels e1 to e6
at a given point in time.
CLOG.P-P( )
Maximum – minimum value
(Syntax) CLOG.P-P(e1.e2.e5.e7)
(Condition) Returns the difference between the maximum and minimum data values
measured at a given point in time from channels e1, e2, e5, and e7.
Expression Example
CLOG.MAX(001.002.I04-I06)+K01*SQR(002)
Examples of Invalid Expressions
CLOG.AVE(001.003.005)+CLOG.AVE(002.004.006)
Reason: CLOG appears twice in one expression.
CLOG.AVE(001.ABS(001))
Reason: A function is used inside the parentheses.
10.2 Writing Expressions