Yokogawa Value Series FX1000 - Manual (Page 214)

9-9
IM 04L21B01-01EN
Computation and Report Functions (/M1, /PM1, and /PWR1 Options)
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App
Index
TLOG Computation
In the explanation below, an expression containing a computing element, an internal
switch (S), a relay (I), a flag (F), and power measurement elements—voltage, current,
frequency, and power factor—cannot be written in e1. In addition, only one TLOG
computation can be specified in a single computing equation.
TLOG.MAX( )
Maximum value
(Syntax) TLOG.MAX(e1)
(Condition) Determines the maximum value of channel e1.
TLOG.MIN( )
Minimum value
(Syntax) TLOG.MIN(e1)
(Condition) Determines the minimum value of channel e1.
TLOG.AVE( )
Average value
(Syntax) TLOG.AVE(e1)
(Condition) Determines the average value of channel e1.
TLOG.SUM( )
Sum value
(Syntax) TLOG.SUM(e1)
(Condition) Determines the sum of channel e1.
TLOG.P-P( )
Maximum - minimum value
(Syntax) TLOG.P-P(e1)
(Condition) Determines the maximum - minimum value of channel e1.
Expression Example
TLOG.MAX(01)+K01*SQR(02)
Examples of Equations That Are Not Allowed
TLOG.AVE(01)+TLOG.AVE(02)
Reason: TLOG appears twice in one equation.
TLOG.AVE(ABS(01))
Reason: A computing element is used inside the parentheses.
9.2 Writing Expressions