IAI America RCP2-CF - Manual (Page 171)

151
Appendix
Example of Basic RCP2 Positioning Sequence
Given below is an example of basic sequence for creating a positioning sequence using the RCP2.
indicates PIO signals of the RCP2 controller.
(Completed-position decoding circuit)
Position complete
(Must be longer
than the PLC’s
scan time.)
Completed position codes
PM1 PM2 PM4 PM8
PM1 PM2 PM4 PM8
PM1 PM2 PM4 PM8
PM1 PM2 PM4 PM8
PM1 PM2 PM4 PM8
Timer 1
Timer 1
Timer 1
Timer 1
Timer 1
Waiting for the completed position to be read
PEND
Completed position 1
Completed position 2
Completed position 3
Completed position 4
Completed position 5
Timer 1
A
B
C
D
E
Create for the number of positions.
(Positioning circuit for position 1: When position 1 is set as the home)
Home return
request
Home return request
Home-return start pulse
Auxiliary home-return start pulse
G
F
G
F
G
Positioning
start request
to position 1
I
H
I
H
Positioning
start request
to position 1
I
Positioning start pulse to position 1 (home)
Auxiliary positioning start pulse to position 1 (home)
The positioning start request signal is converted to pulse in such a
way that one start signal is issued for one positioning operation.
Home return completion
PEND F HEND
Auxiliary positioning start for position 1 (home) J
K
(E) H
J
J PEND L
K
K
K A (O)
L
L
Start check for position 1 (home)
Auxiliary start
signal for next
positioning
Check if positioning to the specified position has completed.
Completion of positioning to position 1 (home)
Current positioning
completed position