West Control Solutions KS98-1 - Manual (Page 210)

Segment types
Different segment types for each individual segment can be determined separately in data block APRGD2.
Like the APROGD, the APRGD2 block contains the parameter for 10 segments. Apart from parameters and time,
APRGD2 has the segment type as a third parameter. I.e. the following basic segment types are possible within a pro -
gram:
• Time segment with target and segment time
• Gradient segment with target and gradient
• Hold segment with hold time
• Step change segment with and segment time
Two variants of all segment types are available: with and without wait status at the segment end.
Segments with wait status feature particularities which must be taken into account:
w A segment of this type does not limit the search run over several segments (see search run on page -> Page 211).
w Behaviour after a short power failure (
£
0.5 Std.) with configuration PwrUp = 2 (continue at actual time):
If the program time from power failure to power recovery includes min. one segment with wait status at the end,
the search run in the segment in which the program would be without power failure is omitted and the program
stops at the first wait status without search run.
w As with the APROGD block, the recipe end is determined by switching off a time parameter (TP=off) or by a
DBLOCK input which is not connected any more.
w When connecting the APRGD2 block to the DBLOCK input of APROG, the new segment types are used automati -
cally. The setting of parameter WMode is ignored when using the APRGD2 block.
w Mixing APROGD and APRGD2 blocks in a recipe is not permitted. However, a programmer can be operated with both
data block types as long as only one parameter block type per recipe is used.
Program sequence changes
During the running program, s and times (online) can be changed. Moreover, further segments, which did not exist so
far, can be added. The actual segment number remains unchanged. Unless the actual segment is changed, the relative
elapsed time also remains unchanged.
q
Past changes
A change of values and times of the past (already elapsed segments) are only effective after re-start
(after previous reset).
q
Future changes
Changes of the future (segments which are not reached so far) are immediately effective. With
changes of segment lines, the „rest time“ is re-calculated automatically.
q
Present changes
Changes of the actual segment time, which mean a return into the past (e.g. segment time
Tp reduc-
tion to lower values than the relative time which has already elapsed in this segment) cause a branch
to the start value of the next segment.
Changes of the destination value of the actual segment cause unique re-calculation of the segment
gradient for this program run, in order to reach the new destination value in the remaining time.
Final re-calculation of the segment gradient is when starting a new batch (reset and start) or with
preset to an earlier time.
Programmer 9499-040-82711
III-210 APROG ( analog programmer (No. 24)) / APROGD ( APROG data (No. 25))