Omron CJ1W-C113 - REV 02-2008, Operation Manual

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Present Position Preset Section 6-6
6-6 Present Position Preset
PRESENT POSITION PRESET changes the present position to any value.
6-6-1 Outline of Operation
When the PRESENT POSITION PRESET Bit is turned ON, the present posi-
tion is changed to the value set in the operating data area. During present
position preset, the Busy Flag will be ON (1 cycle min.). The Busy Flag turns
OFF to indicate that preset operation has been completed. After this, the ori-
gin is established. If the present position is changed to “0,” then that position
will become the origin.
6-6-2 Beginning Words of Memory Areas
The beginning words of the operating memory area, operating data area, and
common parameter area used for a Position Control Unit (PCU) are deter-
mined (or set) according to the following.
• Beginning word of the operating memory area, n = CIO 2000 + 10
×
unit
number
• Beginning word of the common parameter area, m = 100
×
unit
number
• Beginning word of the operating data area, l, is specified in m and m+1.
Set the beginning words of the operating data area and designate the axis
parameters used with the common parameters as shown below.
6-6-3 Operating Memory Area Allocation and Operating Data Area
Settings
Operating Memory Area
Word Name Bit Reference
m Operating data
area designation 00 to 15 SECTION 4
m+1 Beginning word of
operating data area 00 to 15
m+2 Axis parameter
designation 00 to 15
Name Model Operating memory area Bit Details
X axis Y axis Z axis U axis
PRESENT
POSITION
PRESET NC4
@
3
NC2 @ 3
NC1 @ 3
n
n
n
n+2
n+2
n+4 n+6 08
No Origin
Flag NC4 @ 3
NC2 @ 3
NC1
@
3
n+8
n+4
n+2
n+11
n+7
n+14 n+17 06 1: No origin
0: Origin established
Busy Flag 13 1: Busy
: Start present position preset