Chapter 4 Configuration with Siemens TIA Portal Manual VIPA System 200V
4-10 HB97E - CPU - RE_21x-1Bx06 - Rev. 13/20
The transfer of the application program from the MMC into the CPU takes
place depending on the file name after an overall reset or PowerON.
• S7PROG.WLD is read from the MMC after overall reset and transferred
into the battery buffered RAM.
• S7PROGF.WLD is read from the MMC after overall reset and
transferred into the battery buffered RAM and additionally into the Flash
memory. An access to the Flash memory only takes place at empty
battery of the buffer and when no MMC with user program is plugged-in.
• AUTOLOAD.WLD is read after PowerON from the MMC and transferred
into the battery-buffered RAM .
The blinking of the LED "MC" of the CPU marks the active transfer. Please
regard that your user memory serves for enough space, otherwise your
user program is not completely loaded and the SF LED gets on.
When the MMC has been installed, the write command stores the content
of the battery buffered RAM as S7PROG.WLD on the MMC and in the
internal Flash memory.
The write command is to be found in the Siemens TIA Portal in the Task
card "Online tools" in the command area at "Memory" as button [Copy RAM
to ROM]. Only if this function is supported by the CPU, this button is shown.
During the write process the "MC"-LED of the CPU is blinking. When the
LED expires the write process is finished.
If this project is to be loaded automatically from the MMC with PowerON,
you have to rename this on the MMC to AUTOLOAD.WLD.
After a MMC access, an ID is written into the diagnostic buffer of the CPU.
To monitor the diagnosis entries, you select Online & Diagnostics in the
Siemens TIA Portal. Via the register "Diagnostic Buffer" you reach the
diagnosis window.
Information about the Event-IDs can be found at "VIPA specific diagnostic
entries".
Transfer
MMC →
→→
→ CPU
Transfer
CPU →
→→
→ MMC
Transfer control
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