Chapter 3 Creating and Editing Screens
(2). Create a history data
In this case, the original occupied memory space is:
ROM=7.29%
SDAM=3.98%
SRAM=0%
External Storage=0%
Create a two word history data as shown as the figure below. Ensure that this history data
is stored in HMI (non-volatile area), i.e. Retained check box must be checked.
After the history setting is completed, the memory space changes.
Each saved date and time record occupied 6Byres
Each saved history data occupied 2word (4Byres)
SRAM=（6+4）x 10 +10 Byres (for system use) =110 Byres
At this time, the memory space will become:
ROM=7.29%
SDAM=3.98%
SRAM=0.03%
External Storage=0%
3-78 Revision May, 2010
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