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MELSEC-A
12 CONTROL AUXILIARY FUNCTIONS
(a) Control data that requires setting
The following control data must be set to execute the indirectly specification
function. Make this setting using a sequence program.
Buffer memory address
Setting item
Setting
value
Setting details
Axis 1 Axis 2 Axis 3
Cd.11
Positioning start No. 8001
Set "8001" that indicates the control
using the "indirectly specification data".
1150 1200 1250
* For the setting details, refer to section "5.7 List of control data".
(b) Starting conditions
The following conditions must be satisfied to make a start. Also, the
required conditions must be incorporated into the sequence program, and
the data must be disabled from starting if the conditions are not satisfied.
Device
Signal name Signal state
Axis 1 Axis 2 Axis 3
All axes servo ON signal ON Servo operation possible Y15
PLC READY signal ON PLC CPU preparation completed Y1D
AD75 READY signal OFF AD75 preparation completed X0
Axis stop signal OFF Axis stop signal is OFF Y13 Y14 Y1C
Start complete signal OFF Start complete signal is OFF X1 X2 X3
BUSY signal OFF BUSY signal is OFF X4 X5 X6
Error detection signal OFF There is no error XA XB XC
Interface
signal
M code ON signal OFF M code ON signal is OFF XD XE XF
Stop signal OFF Stop signal is OFF
Upper limit (FLS) ON Within limit range
External
signal
Lower limit (RLS) ON Within limit range
Monitor
data
Servo ON On Servo On is ON
Md.116
Servo status: b1
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