User`s manual

11 - 15
11
11-6 Change present position
Change the present position to any value.
[1] Outline of function
The value set to the operation data area is changed to at the ON rising edge of the present position
preset. After this, the origin is in a confirmed state. When "0" is changed to, that position becomes
the origin.
The original position cannot be specified as this origin when a positional shift has occurred as it
differs from the origin according to the external input signal.
[2] Assignment of operation relay and operation data setting
Assignment of special I/O data area
I/O
Input
(PC←PS)
Output
(PC→PS)
0000
0201
0210
0211
0212
0213
0020
0221
0230
0231
0232
0233
0040
0241
0250
0251
0252
0253
0060
0261
0270
0271
0272
0273
Byte address of data memory
Function
Bit
2
4
Busy flag
No origin flag
*JW-14PS only
0
1
Non-busy state
Busy state
Origin
No origin
0
1
2
0 to 7
0 to 7
0 to 7
0 to 7
Present position preset [↑]
Position instruction value (10
0
10
1
)
Position instruction value (10
2
10
3
)
Position instruction value (10
4
10
5
)
Position instruction value (sign A/I 10
6
)
X-axis Y-axis Z-axis* A-axis*
[3] Timing chart
The following shows the timing chart when the present value of the X-axis is set to "0".
The no origin flag turns OFF as the present position becomes the origin when "0" is set.
Busy flag
(n+00002)
Setting of value to change
(N+0210 to 0213)
Present value preset
(n+02012)
No origin flag
(n+00004)
0
1 scan
• "****" in N+**** indicates the numerical value of the address.