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3
SPECIFICATIONS
3.2 Function List
3.2.1 Temperature conversion system
3 - 7
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
8
TROUBLESHOOTING
3.2.1 Temperature conversion system
(1) Temperature conversion of Q68TD-G-H02(H01)
(a) Sampling period
The Q68TD-G-H02(H01) measures the temperature from CH1 to CH8 every
40ms per channel.
The sampling period indicates the period (320ms) batch-updating the measured
temperature value in one channel in the case of that the sampling processing is
specified with the Averaging processing selection (Un\G24 and Un\G25).
Regardless of the number of conversion-enabled channels, the measured
temperature values are stored in the buffer memory every 320ms.
(b) Conversion speed
The conversion speed indicates the maximum time required before the measured
temperature values are stored into the buffer memory.
The following figure shows the timing of storing the measured temperature values
of Q68TD-G-H02 and Q68TD-G-H01 respectively.
Figure 3.1 Q68TD-G-H01 and Q68TD-G-H02 conversion speed overview
(2) Sampling processing
Measured temperature value that is measured at every 320ms of sampling period is
stored in the buffer memory.
Input temperature input
from outside to CH1
Measured temperature
value of CH1 in the
Q68TD-G-H01
Measured temperature
value of CH1 in the
Q68TD-G-H02
Maximum
320ms
Maximum
640ms
1) 2)
3) 4)
CH1 CH1 CH1 CH1CH2 CH8
CH1 CH1 CH1 CH1CH2 CH8
Trend of CH1 input
temperature (A)
At this point, the CH1
measured temperature
value of the buffer memory,
which is measured with
the trend of (A), is stored.
At this point, the CH1
measured temperature
value of the buffer memory,
which is measured with
the trend of (A), is stored.
Sampling period
(320ms)
The measured temperature
value of 1) is stored
The measured temperature
value of 2) is stored
The measured temperature
value of 3) is stored
The measured temperature
value of 1) is stored
The measured temperature
value of 2) is stored
The measured temperature
value of 3) is stored
The measured temperature
value of 4) is stored
Sampling period
(320ms)
Sampling period
(320ms)
Sampling period
(320ms)