Lenze DDS v2.3 Manual de usuario descargar pdf (Pagina 52)

Drive PLC Developer Studio

Programming languages

4-14

DDS EN 2.3

Example of a two-action IEC step:

• For easier monitoring of the processes, all active actions, like active steps, are displayed in

blue in online mode. Which actions are active, is checked after every cycle.

• Whether a newly inserted step is an IEC step is dependent on whether menu command

Extras➞

➞➞

➞Use IEC steps has been selected.

Note!

Note restriction on the use of time qualifiers for actions used more than once within the same cycle.

Following a call, the deactivated actions are processed first before all active actions, both in

alphabetical sequence.

In the

Object Organizer

, the actions are attached directly under the associated SFC organization

unit:

• New actions can be generated with Project➞

➞➞

➞Add action.

4.4.7 Qualifiers

The following qualifiers are available to associate actions to IEC steps:

Non-stored The action is active as long as the step is active.

R overriding Reset The action is deactivated.

S Set (Stored) The action is activated and remains active until reset.

L time Limited The action is active for a certain period of time but no longer than the step is active.

D time Delayed The action will become active after a certain period of time, as long as the step is still active, and

then as long as the step remains active.

P Pulse The action is executed exactly once-only when the step becomes active.

SD Stored and time Delayed The action is activated after a certain period of time and remains a ctive until reset.

DS Delayed and Stored The action is activated after a certain period of time as long as the step is still active, and remains

active until reset.

SL Stored and time Limited The action is active for a certain period of time.

• The qualifiers L, D, SD, DS and SL require a time specification in TIME constant format,

e.g. L T#5s.

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Lenze DDS v2.3 Manual de usuario Pagina 52