802
FX
3U
/FX
3UC
Series Programmable Controllers
Programming Manual - Basic & Applied Instruction Edition
36 Operation of Special Devices (M8000 -, D8000 -)
36.1 Special Device List (M8000 -, D8000 -)
PLC Mode
M 8030
*1
Battery LED
OFF
When M8030 set to ON, LED on PLC is not lit even if
battery voltage low is detected.
→
Refer to Subsection 36.2.10.
3
3
–
–
–
3
–
3
M 8031
*1
Non-latch memory
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
*3
and R
*2
are
cleared to zero.
However, file registers (D) in program memory, and
extension file registers (ER)
*2
in the memory cassette
are not cleared.
→
Refer to Subsection 36.2.11.
3
3
–
3
3
3
3
3
M 8032
*1
Latch memory
all clear
3
3
–
3
3
3
3
3
M 8033
Memory hold
STOP
When PLC is switched from RUN to STOP, image
memory and data memory are retained.
→
Refer to Subsection 36.2.12.
3
3
–
3
3
3
3
3
M 8034
*1
All outputs disable
All external output contacts of PLC are turned OFF.
→
Refer to Subsection 36.2.13.
3
3
–
3
3
3
3
3
M 8035
Forced RUN mode
→
Refer to Subsection 36.2.14 for details.
3
3
–
3
3
3
3
3
M 8036
Forced RUN signal
3
3
–
3
3
3
3
3
M 8037
Forced STOP signal
3
3
–
3
3
3
3
3
[M]8038
Parameter setting
Communication parameter setting flag
(for N:N network setting)
→
Refer to Data Communication Edition.
3
3
D8176 to
D8180
3
3
3
*4
3
3
M 8039
Constant scan
mode
When M8039 is ON, PLC waits until scan time
specified in D8039 and then executes cyclic
operation.
→
Refer to Subsection 36.2.15.
3
3
D8039
3
3
3
3
3
*1.
It is executed when END instruction is executed.
*2.
R and ER are available only in FX
3U
/FX
3UC
PLCs.
*3.
Special data registers are cleared in FX
1S
/FX
1N
/FX
2N
/FX
1NC
/FX
2NC
PLCs.
*4.
It is available in Ver. 2.00 or later.
Number and name
Operation and function
Applicable model
FX
3U
FX
3UC
Correspond-
ing special
device
FX
1S
FX
1N
FX
2N
FX
1NC
FX
2NC
Содержание FX3U Series
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