Mitsubishi Electronics FX3G Manuel D’Utilisation
826
FX
3S
/FX
3G
/FX
3GC
/FX
3U
/FX
3UC
Series
Programming Manual - Basic & Applied Instruction Edition
37 Operation of Special Devices (M8000 -, D8000 -)
37.1 Special Device List (M8000 -, D8000 -)
PLC Mode
M 8030
*1
Battery LED
OFF
OFF
When M8030 set to ON, LED on PLC is not lit
even if battery voltage low is detected.
even if battery voltage low is detected.
→Refer to Subsection 37.2.10.
–
–
–
–
–
M 8031
*1
Non-latch memory
all clear
all clear
If this special auxiliary relay is activated, the
ON/OFF image memory of Y, M, S, T, and C,
and present values of T, C, D, special data
registers
ON/OFF image memory of Y, M, S, T, and C,
and present values of T, C, D, special data
registers
*3
, and R
*2
are cleared to zero.
However, file registers (D) in program memory
and extension file registers (ER)
and extension file registers (ER)
*2
in the
memory cassette are not cleared.
→Refer to Subsection 37.2.12.
–
M 8032
*1
Latch memory
all clear
all clear
–
M 8033
Memory hold
STOP
Memory hold
STOP
When PLC is switched from RUN to STOP,
image memory and data memory are retained.
image memory and data memory are retained.
→Refer to Subsection 37.2.13.
–
M 8034
*1
All outputs disable
All external output contacts of PLC are turned
OFF.
OFF.
→Refer to Subsection 37.2.14.
–
M 8035
Forced RUN mode
Forced RUN mode
→Refer to Subsection 37.2.15 for details.
–
M 8036
Forced RUN signal
Forced RUN signal
–
M 8037
Forced STOP
signal
Forced STOP
signal
–
[M]8038
Parameter setting
Parameter setting
Communication parameter setting flag
(for N:N network setting)
(for N:N network setting)
→Refer to Data Communication Edition.
D8176 to
D8180
*4
M 8039
Constant scan
mode
Constant scan
mode
When M8039 is ON, PLC waits until scan time
specified in D8039 and then executes cyclic
operation.
specified in D8039 and then executes cyclic
operation.
→Refer to Subsection 37.2.16.
D8039
*1.
It is executed when END instruction is executed.
*2.
R and ER are available only in FX
3G
/FX
3GC
/FX
3U
/FX
3UC
PLCs.
*3.
Special data registers are not cleared in FX
1S
/FX
1N
/FX
1NC
/FX
2N
/FX
2NC
PLCs.
*4.
It is available in Ver. 2.00 or later.
Number and
name
Operation and function
Applicable model
FX
3S
FX
3G
FX
3GC
FX
3U
FX
3UC
Correspond-
ing special
device
FX
1S
FX
1N
FX
1NC
FX
2N
FX
2NC