Tlog computation – Yokogawa Removable Chassis DX1000N User Manual

Page 252

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9-8

IM 04L41B01-01E

TLOG Computation

In the explanation below, an expression containing a computing element in e1, an
internal switch (S), a relay (I), or flag (F) cannot be written. 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

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