Siemens SINUMERIK 840Di sl Commissioning Manual page 130

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Power-On and Power-Up

5.3 Power-up

The following is to be taken into account:

• If the MCI board is recognized as being faulty while the SINUMERIK 840Di sl is booting,

• If the MCI board is to be replaced as a result of a suspected or actual error (suspected

Case 2: An up-to-date SRAM image does not exist

A fault occurred with the MCI board during operation of the SINUMERIK 840Di sl. Windows

XP has possibly been shut down correctly, but no SRAM image could be created.

After replacement, based on the hardware serial number the MCI board will be identified as

"unknown". Since no up-to-date SRAM image exists, the SRAM backup is written back into

the SRAM of the MCI board. The SINUMERIK 840Di sl is now immediately "operational".

The user data or operating state of the SINUMERIK 840Di sl must be checked to ascertain if

operation can be continued. It might be necessary to recommission the SINUMERIK 840Di sl

A note will appear in a message box, which must be acknowledged with "OK".

the last SRAM image is retained when Windows XP is shut down. After the MCI board

has been changed, proceed as described above.

error, sporadic errors, etc.), the SINUMERIK 840Di sl NC and PLC should be

recommissioned, as possible data errors may otherwise be imported from the SRAM

Commissioning Manual, 05/2008, 6FC5397–4CP10–4BA0

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Sinumerik 840die sl control