03/05 AWB2724-1453GB
Programreset
21
Programreset
The application program can be reset to one of the following
levels:
•Warm reset
•Cold reset
•Full reset
Warm reset
This correspond to the initialisation during a warm start, see
section “Warm start”on page 20.
Cold reset
This correspond to the initialisation during a cold start, see section
“Cold start”on page 20.
Full reset
The application program in the controller is completely deleted.
After this, the controller is in the “NOT READY” state. The boot
project and the operating system on the MMC will also be deleted.
Program parameterization
An application program has various parameters that can be set or
adjusted in the programming system:
• Maximum program cycle time
• Start behaviour at Power-On
• Parameters for CAN Routing.
Maximum program cycle time
The maximum cycle time for the application program can be set,
in the range from 20 ms to 1000 ms. The default value is 20 ms.
Start behaviour at Power-On
This setting defines how the controller should respond after
switch-on, if an application program is present and the operating
mode selector switch is in the “Run” position.
The following settings are available:
• WARMSTART (default setting)
•COLDSTART
• STOP.
Creating and transferring boot project
A boot project is generated by a loaded user program and saved
on the MMC.
The following steps are necessary in order to create a boot project:
X Insert an MMC into the “MEM Card” slot of the CPU.
X Change over to the “Online” folder.
X Select the “Logon“ command.
X Select the “Create boot project” command.
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The boot project is dependent to the operating system
version with which it was generated. If you wish to
transfer the boot project on a PLC into a further PLC,
remove the MMC (with boot project) from the source PLC
and insert it into the target PLC. Then switch the PLC off
and on.
The target PLC can only operate with the new boot project
when the source PLC has the same operating system as
that which has generated the boot project, a section
“Updating the operating system (OS)” on page 22.
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