Mitsubishi FX3G Series Programming Manual

831
FX3G/FX3U/FX3GC/FX3UC Series
Programming Manual - Basic & Applied Instruction Edition
37 Operation of Special Devices (M8000 -, D8000 -)
37.1 Special Device List (M8000 -, D8000 -)
31
FNC276-FNC279 Data Transfer 3
32
FNC280-FNC289 High-Speed Processing 2
33
FNC290-FNC299 Extension File Register
34
FNC300-FNC305 FX
3U
-CF-ADP
35
SFC•STL Programming
36
Interrupt Function
37
Special Device
38
Error Code
A
Version Up Information
B
Execution Times
37.1.2 Special Data Register (D8000 to D8511)
Number and name Content of register
Applicable model
FX 3G FX 3GC FX 3U FX 3UC
Correspond-
ing special
device
FX 1S FX 1N FX 2N FX 1NC FX 2NC
PLC Status
D 8000
Watchdog
timer
Default value is shown on the right (in 1ms steps)
(Writes from system ROM at power ON)
Value overwritten by program is valid after END or
WDT instruction execution.
→Refer to Subsection 37.2.2.
200 200 200 200 – 200 200 200 200 200
[D]8001
PLC type and
system version
26 26 24 24
D8101
*1
22 26 24 26 24
[D]8002
Memory capacity
• 2...2K steps
• 4...4K steps
• 8...8K steps
• If 16K steps or more
"8" is written to D8002, and "16", "32" or "64" is
written to D8102.
3
8
3
8
3
8
3
8
D8102
3
2
3
8
3
4
8
3
8
3
4
8
[D]8003
Memory type
Type of internal memory/RAM/EEPROM/EPROM
cassette or ON/OFF status of protect switch is
stored
3 3 3 3 – 3333 3
[D]8004
Error number M
3 3 3 3 M8004 3333 3
[D]8005
Battery voltage
3 3 3 3 M8005 – – 3 – 3
[D]8006
Low battery voltage
detection level
Default:
•FX2N and FX2NC PLCs:
3.0V (in 0.1-V units)
•FX3G, FX3U, FX3GC and FX3UC PLCs:
2.7V (in 0.1-V units)
(Writes from system ROM at power ON)
3 3 3 3 M8006 – – 3 – 3
*1. The corresponding special data register D8101 is available only in FX3G, FX3U, FX3GC and FX3UC PLCs.
No corresponding device is available in FX
1S , FX1N, FX2N, FX1NC, and FX2NC PLCs.
BCD converted value2 4 1 0 0
Indicated on the right
Version 1.00
Present
value
Type of memory
Protect
switch
00H RAM memory cassette –
01H EPROM memory cassette –
02H
EEPROM memory
cassette or flash memory
cassette
OFF
0AH
EEPROM memory
cassette or flash memory
cassette
ON
10H Built-in memory in PLC –
BCD converted value8 0 6 0
8060 to 8068 (when M8004 is ON)
BCD converted value
(in 0.1-V units)
3 0
Battery voltage present value
(Example: 3.0V)

Mitsubishi FX3G Series Specifications

General

Model	FX3G Series
Power Supply	AC 100-240V or DC 24V
Program Capacity	32, 000 steps
Execution Speed	0.21 µs/basic instruction
Communication Options	RS-422, USB, Ethernet
Expansion Modules	Analog, digital, communication
Programming Language	Ladder Logic, Instruction List
Built-in Functions	High-speed counters, pulse output
Analog I/O	Available via expansion modules