Mitsubishi Electric MELSEC A Series User Manual page 59

(8) RESET key switch
RESET : Hardware reset. Used to reset the CPU after an operation
LATCH : Sets all data in the latch area defined in the parameter
CLEAR
Latch Clearing Method
(1) Turn the RUN/STOP switch from STOP to L.CLR
times.
(2) Clear by means of a program.
(9) I/O control switch (AnNCPU only)
This switch is used to set the Direct/Refresh mode.
Switch Setting
OFF ON
(Factory setting)
OFF ON
OFF ON
POINTS
(1) Perform switch setting while the power is switched OFF.
(2) After the switches have been set, the CPU checks the status
of the switches at power on or at reset.
direct mode is set for input and the refresh mode for output,
the CPU will execute processing in the refresh mode for both
input and output.
(3) Since a binary code corresponding to the I/O control mode is
stored in special register D9014, the mode can be monitored
using a peripheral device.
error and to initialize operation.
settings to "OFF" or "0" (valid only when the RUN/STOP key
switch is turned to STOP).
Input (X)
Direct mode
Refresh mode
Refresh mode
Output (Y)
Direct mode
Direct mode
Refresh mode
46
several
D9014
0
1
3
Note that if the