Hardware Manual PCD1.M0160E0 │ Document 27-622
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Version ENG04 │ 2018-08-20
Saia-Burgess Controls AG
Run/Stop Button
CPU / Control Process Unit
3-11
3
3.8
Run/Stop Button
The operating mode can be changed during operation or during power-up:
During power-up
If the Run/Stop button is pressed during power-up of the PCD and then released
during one of the sequences describe below, one of the following actions can be
triggered:
LED sequence
Action
Orange
none
Green, blinking (1 Hz)
Switches to “Boot” status and waits for FW download.
Red, blinking fast (4 Hz);
FW > V 01.08.45
The system starts in the same manner as for an empty
SuperCap or empty or absent battery. In the process,
media/resources (flash, registers, flags, etc.), user program
and hardware settings are deleted. The time is set to 00:00:00
01/01/1990. The backup of the on-board flash is NOT deleted.
Red, blinking slowly (2 Hz)
The PCD does not start up and switches to “Stop” mode.
Red/Green, blinking (2 Hz)
Saved data is deleted, which means media/resources (flash,
registers, flags, etc.), user program, hardware settings
and the backup on the on-board flash. If a plug-in flash card
(see chapter “3.5 System Memory Structure”) was used,
its program is not copied to the on-board flash.
During operation
If the button is pressed in Run mode for longer than ½ second and less than 3
seconds, the controller switches to Stop mode and vice versa.
If the button is pressed for longer than 3 seconds, the last saved user program
is loaded from the flash memory.