Mitsubishi Electric FX Series - PLC Operation Mode (M8030 to M8039

A.1.3 PLC Operation Mode (M8030 to M8039)
Appendix Special Relays
Training Manual GX IEC Developer A - 3
Special relay Read Write CPU Function
M8030
쏹
—
FX
2N
FX2NC
FX3G
FX3U
FX3UC
Battery LED OFF
When M8030 set to ON, LED on PLC is not lit even if battery
voltage low is detected.
M8031
쏹쏹
FX
1S
FX1N
FX2N
FX2NC,
FX3G
FX3U
FX3UC
Non-latch memory
all clear
If this special auxiliary relays are acti
-
vated, the ON/OFF image memory of Y,
M, S, T, and C, and present values of T,
C, D, special data registers and R are
cleared to zero. However, file registers
(D) in program memory, and extension
file registers (ER) in the memory cas
-
sette are not cleared.
M8032
쏹쏹
Latch memory all
clear
M8033
쏹쏹
Memory hold STOP
When PLC is switched from RUN to STOP, image memory
and data memory are retained.
M8034
쏹쏹
All outputs disable
All external output contacts of the PLC are turned OFF. The
program however is still executed.
M8035
쏹쏹
Forced RUN mode
M8036
쏹쏹
Forced RUN signal
M8037
쏹쏹
Forced STOP signal
M8038
—
쏹
FX
1S
FX1N
FX2N (V2.0
or later)
FX
2NC
FX3G
FX3U
FX3UC
Communication parameter setting flag
(for N:N network setting)
M8039
쏹쏹
FX
1S
FX1N
FX2N
FX2NC
FX3G,
FX
3U
FX3UC
Constant scan mode
When M8039 is ON, PLC waits until scan time specified in
D8039 and then executes cyclic operation.