Mitsubishi Electric MELSEC-Q Structured Programming Manual page 211

FXCPU Structured Programming Manual
[Device & Common]
3. FX /FX /FX
0S 0 0N
Number and name
PLC status
The initial value is shown on the right (Unit: 1 ms) (Transferred
from the system ROM when the PLC power is turned ON).
D 8000
The value overwritten by a program is valid after the END or
Watchdog timer
WDT instruction was executed.
[D]8001
2
PLC type and system
version
• 2 ... 2K steps
[D]8002
• 4 ... 4K steps
Memory capacity
• 8 ... 8K steps
Type of the built-in memory, type of the RAM, EEPROM and
EPROM memory cassettes and ON/OFF status of the write
protect switch
Value
[D]8003
00H
Memory type
01H
02H
0AH
10H
[D]8004
Error M number
[D]8005
Battery voltage
Current value of battery voltage
(Example: 3.0V)
Initial value;
[D]8006
3.0V (Unit: 0.1 V)
Low battery voltage
(Transferred from the system ROM when the PLC power is
detection level
turned ON)
/FX /FX PLCs
U 2C
Content of register
→ Refer to Subsection 4.2.2.
1 0 0 Value converted into BCD
Shown Version 1.00
on the right
Memory type
Optional RAM memory
Optional EPROM memory
Optional EEPROM memory
Memory built in PLC
RAM built in PLC
8 0 6 0
8060 to 8068(when M8004 is ON)
(Unit: 0.1 V)
3 0
4 Operations of Special Devices (M8000 and later, D8000 and later)
4.1 Special Device List (M8000 and later, D8000 and later)
Applicable model
FX ,
0S
FX FX
0N
FX 0
200 200
2 2
- -
Protect
switch
- -
-
-
OFF
ON
-
- -
- -
Corresponding
FX
U 2C
special device
100 100 -
2 2 -
-
-
M8004
M8005
M8006
1
2
3
4
5
6
7
209