IFM Ecomat 300 AS-i Series, Basic Device Manual

Page: 148 / 280

ifm Basic Device Manual AS-i ControllerE M4 Target V15 2015-10-30
Programming Boot project / source code
148
12.3 Boot project / source code
The project loaded in the controllere is at first only stored in the volatile SRAM, just like the AS-i
configuration. This means it will be lost if the controllere is no longer supplied with 24 V.
Boot process:
When the supply voltage of the controllere is switched on, the operating system copies the programs
and data stored as boot project to the SRAM where they are executed (boot process). After this, the
AS-i masters receive their configuration data. The AS-i masters initialise the AS-i slaves and start the
data transfer to the slaves.
12.3.1 Create boot project
WARNING
Dangerous, uncontrolled machine states!
The flash process can take 5 to 20 seconds when creating a boot project!
During this time the outputs remain in their current state.
► Stop the machine/system or bring it into a safe state before creating a boot project or saving the
AS-i configuration
→ page
118 , chapter How are the operating modes for the PLC selected?
When the configuration of an AS-i system is finished and the PLC project tested, this information must
be non-volatilely stored in the flash memory. This is done in CoDeSys
® via [Online] > [Create boot
project].