Mitsubishi FX3U Series User Manual

448
FX3U Series Programmable Controllers
User’s Manual - Hardware Edition
A Operation of Special Devices (M8000 -, D8000 -)
A-1 Special Auxiliary Relay (M8000 to M8511)
RS2 (FNC 87) [ch2] and Computer Link [ch2]
[M]8410 to [M]8420 Not used –
[M]8421
*1
RS2 (FNC 87) [ch2] Send wait flag –
M 8422
*1
RS2 (FNC 87) [ch2] Send request D8422
M 8423
*1
RS2 (FNC 87) [ch2]
Receive complete flag
D8423
[M]8424
RS2 (FNC 87) [ch2]
Carrier detection flag
–
[M]8425
*2
RS2 (FNC 87) [ch2]
Data set ready (DSR) flag
–
[M]8426 Computer link [ch2] Global ON
D8427
D8428
D8429
[M]8427
Computer link [ch2]
On-demand send processing
M 8428
Computer link [ch2]
On-demand error flag
M 8429
Computer link [ch2]
On-demand Word/Byte changeover
RS2 (FNC 87) [ch2]
Time-out check flag
*1. Cleared when PLC switches from RUN to STOP or when
RS2 instruction [ch2] is OFF.
*2. Supported in Ver. 2.30 or later
Error Detection
[M]8430 to [M]8437 Not used –
M 8438 Serial communication error 2 [ch2] D8438
[M]8439 to [M]8448 Not used –
[M]8449 Special block error flag D8449
[M]8450 to [M]8459 Not used –
Positioning
M 8460
DVIT (FNC151) instruction [Y000]
User interrupt input command
D8336
M 8461
DVIT (FNC151) instruction [Y001]
User interrupt input command
D8336
M 8462
DVIT (FNC151) instruction [Y002]
User interrupt input command
D8336
M 8463
*3
DVIT (FNC151) instruction [Y003]
User interrupt input command
D8336
M 8464
DSZR (FNC150), ZRN (FNC156)
instructions [Y000]
Clear signal device specification
function enabled
D8464
M 8465
DSZR (FNC150), ZRN (FNC156)
instructions [Y001]
Clear signal device specification
function enabled
D8465
M 8466
DSZR (FNC150), ZRN (FNC156)
instructions [Y002]
Clear signal device specification
function enabled
D8466
M 8467
*3
DSZR (FNC150), ZRN (FNC156)
instructions [Y003]
Clear signal device specification
function enabled
D8467
[M]8468 to [M]8511 Not used –
*3. Available only when two FX3U-2HSY-ADP adapters are
connected to a PLC.
Number and
name
Operation and function
Correspond-
ing special
device

Mitsubishi FX3U Series Specifications

General

Model	FX3U Series
Program Memory	64k steps
Execution Speed	0.065 μs/basic instruction
Type	PLC (Programmable Logic Controller)
Power Supply	100-240V AC
I/O Points	Up to 384
Communication	USB
Expansion	Supported via expansion modules
High-Speed Counters	Up to 6 channels
Analog Input/Output	Available via expansion modules
Temperature Range	0 to 55°C
Programming Language	Ladder Logic, Structured Text
Built-in Functions	PID control
Humidity	5 to 95% (non-condensing)