Mitsubishi Electric MELDAS 60 Series Programming Manual page 286

(3) External switch and PLC switch
(Example 1) When an external optional stop switch (X14) is provided;
Under sequence control in the above example, the switch marks on the PLC switch screen can
be operated from both external and PLC switches.
(Example 2) When an external switch (XC) that inhibits a PLC switch handle interrupt is
provided;
Under sequence control in the above example, when the external switch (XC) is on, the PLC
switch for a handle interrupt cannot be turned on.
X14 X143
X14 X143
M8
X14 X143
X14 X143 M9
M6
M7
X143
X144 XC
X144 XC
M10
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10. PLC Help Function
SET M8
RST M9
SET M9
RST M8
PLS M6
RST M8
PLS M7
RST M9
SM83
Y163
Y164
PLS M10
SM84