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SICAM RTUs, SICAM AK 3 User Manual 227
DC2-028-2.03, Edition 07.2016
5.4 Maintenance of the Hardware
5.4.1 Recognition of Hardware Errors
5.4.1.1 Modules
With startup and during the operation SICAM AK 3 supervises the equipped hardware. A
faulty or failed system element is signaled as follows:
• Red ER-LED on the master control element
• Tool Diagnostic | Automatic Diagnostic
• Tool Diagnostic | AU Overview Diagnostic
If a hardware error is present, a replacement of the respective system element is required.
Note
If the corresponding module type is no longer deliverable, the appropriate successor product with the
corresponding firmware is to be used. In this case, the system element must be parameterized anew after
loading the firmware.
5.4.1.2 SD Card
SICAM AK 3 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
Upon startup with erroneous SD card the supplementary system elements are not started,
hence for instance no remote communication is possible.
SICAM AK 3 accesses also during operation the SD card due to operator control actions or
loading processes. If the SD card is detached during operation from a target system, this noti-
fies an error in the diagnosis and activates the ER LED. With missing SD card loading pro-
cesses are blocked.
Possible causes for a checksum error are power failure or write error during a loading pro-
cesses on the SD card.
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