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Program Controller SE-707
© 2018 by STANGE Elektronik GmbH
42
Subject to technical modifications
7 Operation
7.1 Start-up behaviour
The SE-707 carries out a system test after power on. The PLC does not switch to Run or Stop until no hardware errors have
been found. The system test includes the following:
•
Memory test
•
Flash disk test
7.2 Shutdown behaviour
Voltage dips of <= 10ms at 24V are bridged by the power supply unit. Longer voltage dips will cause the PLC to be reset
automatically.
ATTENTION !
Writing data to the CompactFlash™ during a power supply
failure will cause data loss!
The ECS-EPAM visualization software therefore makes a copy
of the file in the directory C:\BACKUP before every write
operation. These files are restored if necessary at the start.