Yokogawa Touch Screen GP20 - Manual (Page 64)

1-50
IM 04L51B01-01EN
Data That Can Be Used in Expressions
You can use the data shown below in expressions.
Data Notation Description
I/O channel data 0001, etc. Specify channel numbers.
Math channel data 1 A001, etc. Specify channel numbers.
Constant K001 to K100 Values.
Communication channel data 2 GX20/GP20: C001 to C300
GX10/GP10: C001 to C050
Specify communication channel numbers.
Internal switch status S001 to S100 1 or 0.
Flag F01 to F20 1 or 0. Use the event action function to set
the flag (for details, see section 1.6).
1 /MT option
2 /MC option
Only the following types of data that are checked in the table below can be used in TLOG,
CLOG, and PRE.
Data
Comp. Type
I/O
channel
Math
channel
Communication
channel
Constant Internal
switch
Flag
TLOG    
CLOG   
PRE    
Other computations      
Bad examples: TLOG.SUM(S01), CLOG.AVE(0001.0002.K01), PRE(S01)
Decimal Place
Set the decimal place for span lower and span upper.
Span Lower, Span Upper
Set the measurement range.
The decimal place is determined by the Decimal place setting.
Unit
Set the unit of computed values.
TLOG
Setup Item Selectable Range or Options Default Value
Timer type Timer, Match Time Timer Timer
Timer No. 1, 2, 3, 4 1
Sum scale Off, sec, min, hour Off
Reset Off, On Off
Timer type
Set the timer type.
Timer No.
Set the number of the timer that you want to use.
Sum scale
Set the sum scale depending on the unit of measured values.
Set the sum scale when using sum computation (TLOG.SUM).
Example: If the unit of the measured value is “m 3 /min,” select /min.
If you select Off, the measured data is summed as-is once per scan interval.
1.5 Configuring Math Channels