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SICAM RTUs, User Manual SICAM CMIC 309
DC8-001-2.09, Edition 08.2016
6.4 Maintenance of the Hardware
6.4.1 Recognition of Hardware Errors
6.4.1.1 Internal Modules
With startup and during the operation SICAM CMIC supervises the hardware. A faulty or failed
module is notified by means of the error LED on the system and, if accasion arises, on the
faulty I/O module. Further, a record in the online diagnosis takes place.
If a hardware error exists, a replacement of the system or of the external I/O module is re-
quired.
6.4.1.2 SD Card
SICAM CMIC accesses with each startup the SD card and checks it. The following cases lead
to errors with the SD card:
• SD card not available
• SD card defective
• wrong type of SD card
• SD card empty
• SD card not formatted
• checksum error with firmware codes
• checksum error with parameter files
Possible causes for a checksum error are power failure or write error during a loading pro-
cesses on the SD card.
Upon startup with erroneous SD card the supplementary system elements are not started,
hence for instance no remote communication is possible.
SICAM CMIC accesses also during operation the SD card due to operator control actions or
loading processes. With missing SD card loading processes are blocked. With engineering via
SICAM WEB the access is blocked, with loading of web pages (change of the menu) the web
browser notifies an error. The target device performs an automatic logoff. The logon is only
possible again with inserted SD card.
Warning
Inserting the SD card during operation leads to a restart of the relevant target device!
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