LEDs, connectors, switches, card slot
2.5 SD card slot
TIM 1531 IRC
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Operating Instructions, 02/2018, C79000-G8976-C468-02
Retentive storage of important data on the SD card
The SD card is an exchangeable storage medium for storing the following data safe from
power failure.
●
Configuration data
The configuration data is backed up on the SD card following every change in a
configuration file. Storing configuration data on the SD card serves the following purpose:
–
Device replacement without engineering station
If the TIM needs to be replaced for maintenance purposes or another location, by
transferring the SD card from the previous to the new TIM, the configuration data can
be made available to the new TIM. In this case, you do not need an engineering
station with a STEP 7 project.
The configuration data is saved on the SD card when the TIM starts up.
For information on device replacement refer to section Module replacement (Page 292).
●
Process data
You have the option of storing values of data points configured as an event. This serves
the following purposes:
–
Storage when there are connection disruptions
If the TIM cannot send the data to its communications partner due to connection
disruptions, this remains stored until the connection is restored.
–
Storage if there is a power failure
You can specify whether values of events are stored globally in the configuration of the
TIM. There are also options for storing on the SD card for every data point created as an
event.
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