Danfoss MCO 305 Design Manual page 63

MCO 305 Design Guide
The source coding is saved in Flash EPROM. If insufficient space is available for the source coding in Flash
EPROM a message is displayed and other program files must be erased before saving the new program file.
All programs saved using source coding are marked with a '+' sign.
Start Programs
In this dialog field you can select a program and Start it directly.
Upload Source
All programs marked with '+' can be read out of the control in source coding format and can be filed on
your PC for subsequent use.
Select the desired program and click on Upload Source. You can edit or duplicate the file for other FC 300's.
Autostart
With Autostart you can mark a program that, in the future, is to be started immediately after the FC 300 is
turned on. Select the desired program and click on Autostart on. The program selected will then be marked
with a *.
If you want to remove an Autostart command once it has been assigned, click on Autostart off or simply
mark another program.
If you want to have more than one program run with Autostart, use the par. 33-80 Activated Program
Number. This allows you to determine which program should be started after the conclusion of the program
run in Autostart.
If nothing else has been determined in the parameters 33-80 PRGPAR, 33-5* I_FUNCTION_n_13, or
I_FUNCTION_n_14, the program marked with Autostart will always be started.
A pre-set Autostart has the Following Effect:
If no error is registered after a cold start (exceptions: tolerated position error is exceeded, end switch error
and SW end switch error) the corresponding Autostart program will be started.
If the Autostart program is aborted by the user (APOSS) it will not start again unless a new cold start is
made. In this case no programs are started due to inputs or par. 33-80 PRGPAR.
If the Autostart program is aborted due to an error (since no ON ERROR routine was defined) or ended nor-
mally, then the program subsequently checks whether a start is planned through inputs or if the par. 33-80
PRGPAR is set. If so, then the corresponding program is executed or the program waits for the start input. If
not, the Autostart program starts over again from the beginning. It follows that:
One-time Execution of the Autostart Program
If it is planed in principle to start the programs via the par. 33-80 PRGPAR or via the inputs, then the
Autostart program is only executed once (for example for HOME functions).
Repeated Execution of the Autostart Program
In all other instances the Autostart program is started repeatedly.
Thus, it is also possible to simply start a program over again with an EXIT command. This is useful if, in an
error situation (ON ERROR), you do not wish to continue with RETURN, but rather, for example, wish to
force a repeated home run. However, it is important to make sure that an error has not occurred (except for
a tolerated position error is exceeded, end switch errors and SW end switch errors), since otherwise the
Autostart program will not be started again.
Linking Autostart Programs
Naturally, starting via the par. 33-80 PRGPAR can also be used for linking purposes: After a program has
been started the program number defined by par. 33-80 PRGPAR can be converted. Thus, it is possible to
determine which program is to be executed next.
NB!:
If no Autostart program has been defined, then it is not possible to start a program via par. 33-80
PRGPAR; this always requires a terminated Autostart program.
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