S-DIAS SAFETY CPU MODULE SCP 111
05.12.2023 Page 35
9.5 Configuring a Safety CPU with the mSD Card
The configuration is loaded from an mSD card a follows:
• Delete the configuration of the Safety CPU to be programmed
To load the configuration from the mSD card, the configuration in the Safety CPU
must first be deleted. This can be done with either the SafetyDesigner or with
help from the CLR_CFG command using validation button on the Safety CPU.
Once the configuration in the Safety CPU is deleted, it can no longer return to
the operational or temporary operational mode. The Safety CPU freezes in the
service mode.
• Insert the mSD card and deactivate the system
In the next step, an mSD card with the valid configuration must be inserted in the
Safety CPU and the system shut down.
• Restart the system with the mSD card
When the system is restarted, the configuration is loaded from the mSD card into
the Flash of the Safety CPU. This is only possible if a valid configuration is stored
on the mSD card. If the mSD card has an incorrect format (error message 86) or
the Safety CPU's Flash has not been cleared (error message 87), the Safety
CPU goes into the error status. If the configuration does not match the available
real modules, the distribution process of the configuration triggers an error (error
message 9) and the Safety CPU also goes into safe mode.
• If an error occurs during the restart, see the following chapter "Restart Error".
A microSD card with a memory capacity of 1 Gigabyte is available
from SIGMATEK under the article number 12-630-101
Only microSD cards that support version 2.0 or higher of the "SDA
Physical Layer Specification" (SDA=SD Card Association) can be
used.
It is recommended to use only the microSD card approved by
SIGMATEK.
The number of read and write accesses has a significant influence on
the service life of the storage medium.
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