Hitachi S10mini D, Hardware Manual

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9 MAINTENANCE
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Clearing all the memory
If the indicator does not turn on or “ROM IDLE” or “LOAD OS” appears when the power supply is
turned on, hold down the reset switch for more than 20 seconds.
If doing so will not solve the problem, clear the memory by performing the procedure described
below. Then, restart the system. (The “all the memory” here means the entire internal memory
of the CPU module plus the extension memory [LQM000]).
(1) Memory clearing when the Windows® version of the tool is ready for online operation
When the Windows® version of the tool and the PCs can both be placed into an online state
(without being disturbed by errors, such as an “line error”), all the memory as described above
can be cleared with the PCs memory initialization feature of the Ladder Chart System. To
accomplish this, perform the following procedure ----
Operation on the PCs:
① Put the CPU into the STOP state by operating the Ladder Program (LADDER) switch.
Operation on the tool:
① Start the Ladder Chart System. Then, if the file that was previously edited when the
Ladder Chart System was ended is opened again on the window, close it by selecting
[Close (C)] from the [File (F)] menu. Then, the Ladder Chart System’s window looks
like the following: