Electro Cam PLUS PS-5000 Series, Programming & Installation Manual

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Mode 3 Lo g ic Flow Chart
Appendix A-9
Mode 3 Lo g ic Flow Chart
Power Up
O u tp u t s Di sab led
no
ye s
Gro u p En ab le
Inp u t On?
O u tp u t s En ab led
1
2
3
4
The flow ch a rt to the right det a il s how Mode 3 oper a te s .
The control’ s re s pon s e to a ny s et of condition s c a n b e
determined b y s tepping thro u gh the flow ch a rt b lock s us ing
tho s e condition s when deci s ion b lock s a re enco u ntered.
The flow ch a rt determine s when the o u tp u t s a re en ab led
a nd di sab led b y Mode 3 logic. Note: Motion ANDing
(FCN 7) c a n a l s o di sab le o u tp u t s .
How to U s e the Flow Chart
To us e the b lock di a gr a m assu me th a t the control i s
contin u o us ly proce ss ing the b lock s a t a very f as t r a te a nd
i s never s topped on a ny one b lock. The control will get
s t u ck proce ss ing the sa me p a th of b lock s repe a tedly (loop)
u ntil a condition ch a nge s within one of the deci s ion b lock s
in th a t loop which a lter s the p a th. Re s pon s e to a condition
ch a nge i s a lmo s t in s t a nt a neo us s o the new condition s
e s t ab li s hed in the next loop t a ke a ffect qu ickly. Note th a t
the logic p a th c a n only flow in the direction of the a rrow s ,
never a g a in s t them.
Rect a ngle Block
O u tp u t en ab le/di sab le s t a t us or a
logic memory fl a g i s a ltered.
Di a mond Block
A ye s /no deci s ion i s m a de bas ed on
the condition s t a ted within the b lock.
Mode 3 Flow Chart Block s
1. Control power s u p bas ed on the l as t gro u p po s ition
reference th a t w as progr a mmed into FCN 2.
2. Di sab le o u tp u t s (do not a llow them to cycle a t their
progr a mmed po s ition s etpoint s ).
3 . Check if gro u p en ab le inp u t on. Go to s tep 4 if it i s , loop
ba ck to s tep 2 if it i s not.
4. En ab le o u tp u t s to cycle on a nd off a t their progr a mmed
po s ition s etpoint s . Loop ba ck to s tep 3 .
TA S K
DECI S ION