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3
SPECIFICATIONS
3.2 Function List
3.2.4 Warning output function
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1
OVERVIEW
2
SYSTEM
CONFIGURATION
3
SPECIFICATIONS
4
SETUP AND
PROCEDURES BEFORE
OPERATION
5
UTILITY PACKAGE (GX
CONFIGURATOR-TI)
6
PROGRAMMING
7
ONLINE MODULE
CHANGE
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TROUBLESHOOTING
(d) The rate alarm warning detection period is set based on the period batch-updating
measured temperature values and the number of the periods.
Setting range is 1 to 6000 (times).
Calculation method of the rate alarm warning detection period is below.
[Example 1: When setting the rate alarm warning detection period to 150 times with
sampling processing]
Rate alarm warning detection period = 150 times
320ms = 48000ms = 48s
[Example 2: When setting the rate alarm warning detection period to 150 times with
2000ms of time average for the averaging processing)]
2000
320 = 6.25 (times) Drop the fractional part
The batch-updated period of 2000ms of time average is same as the period of 1920ms
(320ms 6 times)
Rate alarm warning detection period = 150 times
1920ms=288000ms = 288s
[Example 3: When setting the rate alarm warning detection period to 150 times with 10
times of count average for the averaging processing]
Rate alarm warning detection period = 150 times
10 times 320ms = 480000ms =
480s
[Example 4: When setting the rate alarm warning detection period to 150 times with 4
times of moving average for the averaging processing)]
Rate alarm warning detection period = 150 times
320ms=48000ms = 48s
(e) Rate alarm is effective to monitor a change of measured temperature values
within a limited range.
1) Setting example of the rate alarm upper limit/lower limit values for monitoring
that a measured temperature value rises within the specified range
Figure 3.10 Setting example of rate alarm upper limit or lower limit
(Rate alarm warning detection period) =
(Setting value of the rate alarm warning detection period)
(Temperature measurement value update period)
Rate alarm upper limit value
Rate alarm lower limit value
20.0
10.0
0
C
C
Time
Change of
measured
temperature
value ( C)