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Chapter 3 Specifications and Functions
(3) QD77MS16
Signal direction: QD77MS16 PLC CPU Signal direction: PLC CPU QD77MS16
Device No. Signal name Device No. Signal name
X0 READY Y0 PLC READY
X1 Synchronization flag Y1 All axis servo ON
X2
Use prohibited
Y2
Use prohibited
X3 Y3
X4 Y4
X5 Y5
X6 Y6
X7 Y7
X8 Y8
X9 Y9
XA YA
XB YB
XC YC
XD YD
XE YE
XF YF
X10 Axis 1
BUSY
Y10 Axis 1
Positioning start
X11 Axis 2 Y11 Axis 2
X12 Axis 3 Y12 Axis 3
X13 Axis 4 Y13 Axis 4
X14 Axis 5 Y14 Axis 5
X15 Axis 6 Y15 Axis 6
X16 Axis 7 Y16 Axis 7
X17 Axis 8 Y17 Axis 8
X18 Axis 9 Y18 Axis 9
X19 Axis 10 Y19 Axis 10
X1A Axis 11 Y1A Axis 11
X1B Axis 12 Y1B Axis 12
X1C Axis 13 Y1C Axis 13
X1D Axis 14 Y1D Axis 14
X1E Axis 15 Y1E Axis 15
X1F Axis 16 Y1F Axis 16
POINT
(1) For QD77MS16, M code ON signal, error detection signal, start complete signal and
positioning complete signal are assigned to the bit of "[Md.31] Status".
(2) For QD77MS16, axis stop signal, forward run JOG start signal, reverse run JOG start
signal, execution prohibition flag are assigned to the buffer memory [Cd.180] to [Cd.183].
Important
[Y2 to YF] and [X2 to XF] are used by the system, and cannot be used by the user.
If these devices are used, the operation of the QD77MS16 will not be guaranteed.