Yokogawa Touch Screen GP20 User Manual Page 67

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1-53
IM 04L51B01-01EN
Configuring the GX/GP
1
2
3
4
5
App
Handling of Overflow Data
1
1 Refers to over range on an I/O channel, computation overflow on a math channel, and over
range on a communication channel.
For TLOG, CLOG, and Reports
When the channel data is overflow data, the GX/GP handles it as follows:
Computation Type Description
Average value or sum value Set the handling to Error, Skip, or Limit.
Error: Sets the computation result to computation error.
Skip: Discards overflow data and continues the computation.
Limit: Replaces overflow data with the limit value and continues the
computation.
Limit value: Span upper or lower limit or the scale upper or lower limit of
the channel
Maximum, minimum,
Maximum – minimum
Set the handling to Over or Skip.
Over: Computes by using the overflow data.
Skip: Discards overflow data and continues the computation.
For Multiplication and Relation Computation EQ and NE
Computation Type Computation Computed Result
Multiplication 0*(+Over) 0
0*(–Over) 0
(+Over)*0 0
(–Over)*0 0
.EQ. (+Over).EQ.(+Over) 0
(–Over).EQ.(–Over) 0
.NE. (+Over).NE.(+Over) 1
(–Over).NE.(–Over) 1
1.5 Configuring Math Channels
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