Delta Electronics DUP-B Series User Manual page 191

Chapter 3 Creating and Editing Screens
Setting
3-170
Property Description of Trend Graph Elements
Please note that when the sample number is a
constant, the Max. Sample Number option is
disabled.
When Sample Number is a variable
When the sample number is set to the address
Sample Number
(register), the sample number is a variable value.
Max. Sample
The user can change the value of the address to
Number
modify the sample number at the same time. When
the sample number is a variable value, the Max.
Sample Number option must be set. If the read
value is more than the set Max. Sample Number, the
system will take the set Max. Sample Number as the
actual maximum sample number.
Word
1. BCD
2. Signed BCD
Data Format
3. Signed Decimal
4. Unsigned Decimal
5. Hex
The address can be internal memory or the
controller address. (Please refer to Table 3.2.2
Property Description of General Buttons.)
The trend graph will continuously read numbers of
Read Address
addresses from the read address set by the user,
convert the read data into trend graph and display
on HMI screen. The numbers of the addresses is
determined by the setting of "Sample Number".
It is used to set trigger and clear flag. When sample
flag is triggered, it will start to read data and draw
Sample Flag the graph. This sample flag is located within the
control block. Please refer to section 3.4 in Chapter
3 for the settings of the control block.
It is used to set the minimum and maximum value
of the display data, i.e. the minimum and maximum
Minimum
value of Y-axis. If the read value is more the
Maximum
maximum or less than the minimum, the system
will display the minimum and maximum value still.
value:
Revision May, 2010