5.16 Memory extension with MCC
There is the possibility to extend the work memory of the CPU. For
this, a MCC memory extension card is available from VIPA. The MCC
is a specially prepared MMC (
M
ulti
m
edia
C
ard). By plugging the MCC
into the MCC slot and then an overall reset the according memory
expansion is released. There may only one memory expansion be
activated at one time. On the MCC there is the file memory.key. This
file may not be altered or deleted. You may use the MCC also as
"normal" MMC for storing your project.
To extend the memory, plug the MCC into the card slot at the CPU
labelled with "MCC" and execute an overall reset.
If the memory expansion on the MCC exceeds the maximum extend-
ible memory range of the CPU, the maximum possible memory of the
CPU is automatically used. You may determine the recent memory
extension via the integrated web page or with the Siemens SIMATIC
Manager at Module Information - "Memory".
CAUTION!
Please regard that the MCC must remain plugged when
you’ve executed the memory expansion at the CPU. Oth-
erwise the CPU switches to STOP after 72 hours. The
MCC cannot be exchanged with a MCC of the same
memory configuration.
When the MCC memory configuration has been taken over you may
find the diagnostic entry 0xE400 in the diagnostic buffer of the CPU.
After pulling the MCC the entry 0xE401 appears in the diagnostic
buffer, the SF LED is on and after 72 hours the CPU switches to
STOP. A reboot is only possible after plugging-in the MCC again or
after an overall reset.
The remaining time after pulling the MCC is always been shown with
the parameter
MCC-Trial-Time
on the web page.
After re-plugging the MCC, the SF LED extinguishes and 0xE400 is
entered into the diagnostic buffer. You may reset the memory config-
uration of your CPU to the initial status at any time by executing an
overall reset without MCC.
Overview
Proceeding
Behavior
VIPA System 300S
Deployment CPU 312-5BE13
Memory extension with MCC
HB140 | CPU-SC | 312-5BE13 | GB | 15-50
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