4. Configuration
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Memory Card
Data transfers involving the memory card is performed by the CPU in the background, as this gives
priority to the execution of user application and communication processing. Thus, the transfer of files
to the card may suffer an additional significant time, depending on the Cycle Time of the user
application. The time required to read/write files on the card will be directly affected by the Cycle
Time of the user application since this application has priority in execution.
Further information about the use of the memory card see Configuration - Memory Card chapter.
RTC Clock
Nexto Series CPUs have an internal clock that can be used through the NextoStandard.lib library.
This library is automatically loaded during the creation of a new project (to perform the library
insertion procedure, see Libraries chapter). Figure 4-80 shows how to include the blocks in the
project:
Figure 4-80. Clock Reading and Writing Blocks
ATTENTION:
Function blocks of RTC Reading and Writing, previously available in 2.00 MasterTool IEC XE or
older become obsolete from 2.00 or newer, the following blocks are no longer used:
NextoGetDateAndTime, NextoGetDateAndTimeMs e NextoGetTimeZone, NextoSetDateAndTime,
NextoSetDateAndTimeMs e NextoSetTimeZone.
Function Blocks for RTC Reading and Writing
Among other function blocks, there are some very important used for clock reading
(GetDateAndTime, GetDayOfWeek and GetTimeZone) and for date and time new data configuring
(GetDateAndTime, and SetTimeZone). The proceedings to configure these two blocks are described
below:
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