Hardware Manual for the PCD3 Series│Document 26/789; Version E 5│31.01.2005
Saia-Burgess
Controls Ltd.
Backup of the user program
PCD3.Mxxx0 Classic CPUs and expansion housings
3-21
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3.13.2 Program backup and restore with onboard flash
Program backup to onboard flash
PG5 can be used to load a user program into onboard flash.
Before copying, the controller must be moved into the STOP state; where applicable,
an appropriate reminder will be displayed. The copying process may take up to 30
seconds.
Program restore from onboard flash
●
Automatic restore
If no valid user program is loaded when the CPU is switched on, the CPU
operating system checks whether there is a valid program in the onboard flash;
if so, it is automatically loaded and executed.
●
Manual restore with PG5
PG5 can be used to write a valid program to the CPU from the onboard flash.
On the PCD3.M5xx0, 256 kBytes must be configured for this. The flash card must not
be plugged in.
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