Specifications

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6.13 Practice Question (3) Parameter Change During RUN
There may be the cases where the detailed parameter (1) must be changed while the
PLC is running.
To do this, create the sequence program that executes the following actions: when the
PLC READY Y0A0 turns OFF and the QD75 READY X0A0 turns OFF, the MOV
instruction is turned ON to rewrite the buffer memory storing the M code ON signal
output timing of the detailed parameter (1), using the intelligent function module direct
device.
SM1039
Write data
Designates the buffer
memory for M code ON
signal output timing of axis 1
using the direct device
X0A (PLC READY OFF command)
X0A0 (QD75 READY)
"0" or "1" is set by
digital switch.
PLC READY
Write to the
buffer memory
Y0A0
RUN, Always
ON after 1 scan
BIN K1X30 D2
DMOVP
Turn ON the PLC READY (Y0A0) after rewriting and start the positioning data No.91.
Setting of positioning
data No.
0190
X2F
to
X20
"0" is "WITH" mode.
"1" is "AFTER" mode.
0000
X3F
to
X30