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Chapter 14 Common Functions
(3) When "2: Buffer memory of QD77MS" is set, use the following control data to
operate the external input signal (upper/lower limit signal, near-point dog
signal and stop signal).
Setting item
Setting
value
Setting details
Buffer memory address
QD77MS2
QD77MS4
QD77MS16
[Cd.44]
External input
signal operation
device
Set the status of the upper/lower limit signal, the
near-point dog signal and the stop signal.
1928
5928
to
5931
: Refer to Section 5.7 "List of control data" for details on the setting details.
[2] Precautions during parameter setting
(1) When the "3: External input signal 1 of QD77MS", "4: External input signal 2
of QD77MS", "5: External input signal 3 of QD77MS", or "6: External input
signal 4 of QD77MS" is set in the QD77MS2/QD77MS4, the error "External
input signal selection error" (error code: 936) occurs at turning the PLC
READY signal [Y0] ON, and the READY signal [X0] is not turned ON.
Set "0: External input signal of QD77MS" to use the external input signal of
QD77MS2/QD77MS4.
(2) When the "0: External input signal of QD77MS" is set in the QD77MS16, the
error "External input signal selection error" (error code: 936) occurs at turning
the PLC READY signal [Y0] ON, and the READY signal [X0] is not turned ON.
Set "3: External input signal 1 of QD77MS", "4: External input signal 2 of
QD77MS", "5: External input signal 3 of QD77MS", or "6: External input signal
4 of QD77MS" to use the external input signal of QD77MS16.
[3] Control details
The following table shows the external signal that becomes valid by setting
"[Pr.80] External input signal selection".
"[Pr.80] External input signal selection" External signal that becomes valid
External input signal of QD77MS
(Setting value: 0, 3, 4, 5, 6)
Upper/lower stroke limit signal : External input signal of QD77MS
(FLS, RLS)
Near-point dog signal : External input signal of QD77MS (DOG)
Stop signal : External input signal of QD77MS (STOP)
External command/switching signal: External input signal of QD77MS (DI)
External input signal of servo amplifier
(Setting value: 1)
Upper/lower stroke limit signal : External input signal of servo amplifier
(FLS, RLS)
Near-point dog signal : External input signal of servo amplifier
(DOG)
Stop signal : External input signal of QD77MS (STOP)
QD77MS2 QD77MS4
/
Buffer memory of QD77MS (STOP)
QD77MS16
External command/switching signal: External input signal of QD77MS (DI)
Buffer memory of QD77MS
(Setting value: 2)
Upper/lower stroke limit signal : Buffer memory of QD77MS (FLS, RLS)
Near-point dog signal : Buffer memory of QD77MS (DOG)
Stop signal : Buffer memory of QD77MS (STOP)
External command/switching signal: External input signal of QD77MS (DI)