Configures a PLC program.
The name of the PlcPgm object is used to identify a
certain editing unit.
The object represents both data and code.
Put the object below a $PlantHier object in the
development environment by means of the Configuration
Editor. The PLC program will execute in a node
specified by a $PlantHier object.
Below the PlcPgm object is a WindowPlc object created.
This object becomes the parent object
to the objects in the PLC program.
Different PlcPgm objects with the same ScanTime will
execute in one and the same PLC- subprocess. Up to 15
PLC-subprocesses can be included in a PLC job.
Note! The PLC subprocess with the shortest ScanTime, i.e.
with the highest frequency, is named the base frequency
subprocess and handles the I/O-software of Di-, Do-,
Dv- and Co- signals on buss-connected cards as well.
The other subprocesses are named partial frequency
subprocesses.
This means, if there is no need for any true PlcPgm,
but Di-, Do-, Dv- and Co-signals have to be handled by
the I/O-software --- that a dummy PlcPgm must be
created.
If any attribute in the PlcPgm object is changed it is
necessary to 'compile' the PLC program.
Configuration status.
Status in the development environment for an hierarchy,
plcprogram or process graph, set by the designer to indicate
the current state. If a status is set for an object, it is
marked red, yellow or green in the configurator. Also the
status text if viewed surrounded by angel brackets.
Safety level.
Safety level in the development environment for an hierarchy,
plcprogram or process graph, set by the designer to indicate
the level. If a level is set for an object, it is marked with
a warning trangle.
Specifies the complete name of a Di, Dv or Do object
which will be used as the reset signal of the Grafcet
chains identified by the PlcPgm object.
If there is no need to reset a Grafcet chain or if the
PlcPgm object does not contain any Grafcet chain the
attribute is left blank.
