Delta Electronics DELTA DUP-B - Manual (Page 265)

Chapter 3 Creating and Editing Screens
3-244 Revision May, 2010
History Buffer Setup Dialog Box
Export CSV File
The column name, i.e. Time, Date, Value 1 ~13 can be
user-defined. Please refer to the following figure:
Trigger
There are two options: Timer and PLC. The sampling action is
controlled by the Timer of the HMI or the external controller, i.e.
PLC. When PLC option is selected, it indicates that the trigger bit
designated by the register for sampling history buffer in the
control block control the sampling action. Regarding the
settings of the control block, please refer to section 3.4.
Buffer
Properties
OK / Cancel
Press OK button to save the data and exit. Press Cancel to exit
without saving data.
Delete Press Delete button to delete the history data.
Modify Press Modify button to modify the history data.
History
Buffer
Setup
The calculation method of the size of the history data file is as follows:
1. dat file
Each history data will be saved as Hxxxx.dat. xxxx indicates that it is the xxxxth
history data.
   
MBytes
c N b Bytes a Bytes
Size File Actual
1024 1024
2 6


  ) ( ) ( ) (
a Time and Date Data
b History Data Length
c Sampling Points