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3 POSITIONING DEDICATED SIGNALS
(2) Axis monitor device list
Axis
No.
Device No. Signal name
1 D0 to D19
2 D20 to D39
3 D40 to D59
Signal name Refresh cycle Fetch cycle Unit
Signal
direction
4 D60 to D79 0
5 D80 to D99 1
Feed current value
6 D100 to D119 2
7 D120 to D139 3
Real current value
Command
unit
8 D140 to D159 4
9 D160 to D179 5
Deviation counter value
Operation cycle
PLS
10 D180 to D199 6 Minor error code
11 D200 to D219 7 Major error code
Immediate
12 D220 to D239 8 Servo error code Main cycle
13 D240 to D259
14 D260 to D279
9
Home position return
re-travel value
PLS
15 D280 to D299 10
16 D300 to D319 11
Travel value after
proximity dog ON
Operation cycle
Command
unit
17 D320 to D339 12 Execute program No. At start
18 D340 to D359 13 M-code
19 D360 to D379 14 Torque limit value
Operation cycle
%
20 D380 to D399
21 D400 to D419
15
Data set pointer for
constant-speed control
At start/during start
Monitor
device
22 D420 to D439 16
23 D440 to D459 17
Travel value change
register
Operation cycle
Command
device
24 D460 to D479 18
25 D480 to D499 19
Real current value at
stop input
Operation cycle
Command
unit
Monitor
device
26 D500 to D519
27 D520 to D539
28 D540 to D559
29 D560 to D579
30 D580 to D599
31 D600 to D619
32 D620 to D639
(Note-1): The range of axis No.1 to 8 is valid in the Q172HCPU.
(Note-2): Device area of 9 axes or more is unusable in the Q172HCPU.