Start-Up After Replacement Of The Pcu Or The Mci Board - Siemens SINUMERIK 840DiE sl Manual

01/2007
5.3.5 Start–up after replacement of the PCU or the MCI board
5.3.6 Start–up after importing a backup copy
5.3.7 Start–up after power failure/Power Fail
Case 1:
SRAM saved
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SINUMERIK 840Di sl Manual (HBIsl) – 01/2007 Edition
If, during booting, it has been ascertained that both the SRAM image on the
PCU hard disk and the MCI board SRAM have buffered valid, but divergent user
data (both components were already in use in one SINUMERIK 840Di sl), no
automatic selection can be made.
Responses
The following message box is displayed with which the user has to decide
which user data have to be used further.
SINUMERIK 840Di sl NCK/PLC
New MCI card detected. Valid user data are found:
– on MCI card
– on hard disk
If you want to use the user data from MCI card
If you want to use the user data from the hard disk
If a backup copy (ghost image) of a previously booted SINUMERIK 840Di sl is
loaded into the PCU again, the user data puffered in the SRAM of the MCI
board will be used again.
The SINUMERIK 840Di sl is thus ready again immediately.
Thanks to the Power Fail Detection integrated in the PCU, in the event of a
power failure the SINUMERIK 840Di sl saves the user data in the SRAM of the
MCI board. An SRAM image, however, cannot be created any more in this
case.
When the power returns or with the next power–up, the data will be available
again.
The SINUMERIK 840Di sl is thus ready again immediately.
5 Power On and Power–Up
Yes No
5.3 Booting
click "Yes"
click "No"
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