Omron CS1W-MC221 -, Operation Manual

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Programming Examples Section 8-1
8-1-10 Positioning a Turntable
Operation This operation positions a turntable using the unlimited feed mode and vari-
ous arithmetic commands. Positioning is performed while judging whether to
move clockwise or counterclockwise to arrive at the target position. Target
positions are specified between 0
°
and 360
°
and the present position will
return to zero if a target position is specified outside that range.
Use the following procedure to specify positioning from the CPU Unit.
1,2,3... 1. Use the IOWR instruction to write the target position into address A0000
between 0
°
and 360
°
.
2. After the target position is specified, turn ON optional input zero and the
turntable will be positioned at the target position.
3. M code 0001 will be output after positioning is completed. Check the M
code, turn OFF optional input zero and turn the M code reset ON and OFF.
4. Repeat steps 1 to 3.
Programming Example
N000 P000 X
*001
*002
Target position=A0000, reference position (program
setting)=A0001
*003
Present position (used internally)=A0100, work mem-
ory=A0101,A0102
*004
*005
Set the target position into A0000 by IOWR instruc-
tion.
*006
Waits until optional number zero turns ON.
*007
N008
G75 00
N009 G70 N008
*010
*011
Positions approximately.
*012
N013
G63 A0100=X
N014 G60 A0102=A0000–A0100
N015 G71 N020/A0102<–180
N016 G71 N022/A0102<180
N017 G71 N024/A0102<360
N018 G60 A0102=A0102–360
N019 G70 N015
N020 G60 A0001=A0000+360
N021 G70 N025
N022 G63 A0001=A0000
N023 G70 N025
N024 G60 A0001–A0000–360
N025 G00 XA0001 M001
Positions approximately.