Omega RD-MV100 Series User Manual page 229

TLOG Computation (MAX, MIN, AVE, SUM, MAX–MIN)
Only measurement channels and computation channels can be used in the TLOG
computation. In the explanation below, e1 is used to represent a measurement or
computation channel. You cannot specify an equation that contains a computing
element inside e1. In addition, only one TLOG computation can be specified in a single
computing equation.
TLOG.MAX ( )
Syntax :
Result :
TLOG.MIN ( )
Syntax :
Result :
TLOG.AVE ( )
Syntax :
Result :
TLOG.SUM ( )
Syntax :
Result :
TLOG.P-P ( )
Syntax :
Result :
Rules for Writing an Equation (Common Items)
Follow the rules below in writing the computing equations.
• Use up to 40 characters to write equations.
• The precedence of computing terms can be specified using parentheses.
• Specify the channels in the equation using channel numbers. (Example: Channel 1 is
"01" or "1")
• You can use "01" or "1," for example, to specify one-digit numbers for channels,
constants, communication input data, and conditions of the remote control terminals in
equations.
Example :
• The data value for the channel used in the equation, and for all channels greater in
number than that channel, are substituted with data from the previous scan.
• Do not use more than 16 stacks (channel, K01 to K12, C01 to C12, D01 to D08) in
one equation. Otherwise, a computation error may occur. The computed result is set
to positive overflow (displayed as +
Example: The number of stacks in the equation 01+K01 (03+04 K02) is five.
11.2 Explanation of Computing Equations
TLOG.MAX (e1)
Computes the maximum value of channel e1
TLOG.MIN (e1)
Computes the minimum value of channel e1
TLOG.AVE (e1)
Computes the average value of channel e1
TLOG.SUM (e1)
Computes the summation of channel e1
TLOG.SUM (e1)
Computes the maximum value–minimum value of channel e1
01, 1, K01, K1, C01, C1, D01, D1
) in this case.
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