Yokogawa Button Operated DX2000 - Manual (Page 273)

9-9
IM 04L42B01-01E
Computation and Report Functions (/M1 and /PM1 Options)
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App
Index
CLOG Computation
Only data of measurement channels, computation channels, and external input channels
can be used in the CLOG computation. Up to 30 channels can be written in the
parentheses.
In the explanation below, an expression containing a computing element cannot be
written to e1, etc. In addition, only one CLOG computation can be specified in a single
computing equation.
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) Determines the maximum value among the data of channels e1, e2,
e4, e5, and e6 that are measured at the same time.
CLOG.MIN( )
Minimum value
(Syntax)
CLOG.MIN(e1.e2.e5.e7)
(Condition) Determines the minimum value among the data of channels e1, e2, e5,
and e7 that are measured at the same time.
CLOG.AVE( )
Average value
(Syntax)
CLOG.AVE(e1-e6)
(Condition) Determines the average value among the data of channels e1 to e6
that are measured at the same time.
CLOG.P-P( )
Maximum - minimum value
(Syntax)
CLOG.P-P(e1.e2.e5.e7)
(Condition) Determines the difference between the maximum and minimum values
among the data of channels e1, e2, e5, and e7 that are measured at
the same time.
Expression Example
CLOG.MAX(001.002.104-106)+K01*SQR(002)
Examples of Equations That Are Not Allowed
CLOG.AVE(001.003.005)+CLOG.AVE(002.004.006)
Reason: CLOG appears twice in one equation.
CLOG.AVE(001.ABS(001))
Reason: A computing element is used inside the parentheses.
9.2 Writing Expressions