Omron CS1W-NC113 - REV 02-2008, Manual

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6-7 Section Origin Return
152
Operating Data Area
Name Model
Operating data area
Bit Details
X
axis
Y
axis
Z
axis
U
axis
Position NC4
j
3
NC2
j
3
NC1
j
3
I+8
I+9
I+8
I+9
I+8
I+9
I+20
I+21
I+20
I+21
I+32
I+33
I+44
I+45
00 to 15
(rightmost)
00 to 15
(leftmost)
15 00 Leftmost 15 00 Rightmost
Setting range: C0000001 to 3FFFFFFF Hex
(--1,073,741,823 to 1,073,741,823)
6-6-4 Timing Chart
In the following timing chart, the X-axis present position for a 4-axis PCU is
changed to “0.” When the present position is changed to “0” it becomes the ori-
gin, so the Origin Stop Flag is turned ON. There will be no change in the status of
the Positioning Completed Flag.
Value to be
changed to
(I+8, I+9)
PRESENT POSITION
PRESET
(word n, bit 08)
Origin Stop Flag
(word n+8, bit 07)
No Origin Flag
(word n+8, bit 06)
Busy Flag
(word n+8, bit 13)
1 scan min.
6-7 Origin Return
The origin return operation is used to return the axis to the origin from any posi-
tion. It is executed by the rising edge of the ORIGIN RETURN command.
Note Execute ORIGIN RETURN when the origin has been established. If the origin
has not been established, a present position unknown error (error code 5040)
will be generated.
6-7-1 Allocation of Operating Memory Area and Setting of Operating
Data Area
Operating Memory Area
Name Model
Operating memory area
Bit Details
X axis Y axis Z axis U axis
ORIGIN RETURN NC4
j
3
NC2
j
3
NC1
j
3
n
n
n n+2
n+2 n+4 n+6 07 : Start of origin return
Origin Stop Flag NC4
j
3
NC2
j
3
n+8
n+4 n+11
n+7 n+14 n+17 07 1: Stopping at origin; 0: Other
Busy Flag
NC2
j
3
NC1
j
3
n+4
n+2 n+7
13 1: Busy