Mitsubishi FX3G Series Programming Manual

820
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 -)
Memory Information
[M]8101
Not used
– – – – – –––– –
[M]8102
– – – – – –––– –
[M]8103
– – – – – –––– –
[M]8104
ON when function extension memory is
installed.
– – – –
D8104
D8105
––
3
*2
–
3
*2
[M]8105
ON during writing in RUN mode
*1
3 3 3 3 – –––– –
[M]8106 Not used
– – – – – –––– –
[M]8107 Device comment registration check
– – 3 3 D8107–––– –
[M]8108 Not used
– – – – – –––– –
*1. For FX3U/FX3UC PLCs, available only when a memory cassette is connected.
*2. Available in Ver. 3.00 or later.
Output Refresh Error (Refer to Chapter 38 for details.)
[M]8109 Output refresh error 3 3 3 3 D8109 – – 3 – 3
[M]8110
Not used
– – – – – –––– –
[M]8111
– – – – – –––– –
Expansion Board [Dedicated to FX1S and FX1N]
M 8112
FX1N-4EX-BD: BX0 input
– – – ––33 –––
FX1N-2AD-BD: ch1 input mode change
– – – – D8112 33 –––
M 8113
FX1N-4EX-BD: BX1 input
– – – ––33 –––
FX1N-2AD-BD: ch2 input mode change
– – – – D8113 33 –––
M 8114
FX1N-4EX-BD: BX2 input
– – – ––33 –––
FX1N-1DA-BD: output mode change
– – – – D8114 33 –––
M 8115 FX1N-4EX-BD: BX3 input
– – – ––33 –––
M 8116 FX1N-2EYT-BD: BY0 output
– – – ––33 –––
M 8117 FX1N-2EYT-BD: BY1 output
– – – ––33 –––
[M]8118
Not used
– – – – – –––– –
[M]8119
– – – – – –––– –
RS (FNC 80) and Computer Link [ch1] (Refer to Data Communication Edition for details.)
[M]8120 Not used – – – – – –––– –
[M]8121
*3
RS (FNC 80) instruction: Send wait flag
3 3 3 3 – 3333 3
M 8122
*3
RS (FNC 80) instruction: Send request
3 3 3 3 D8122 3333 3
M 8123
*3
RS (FNC 80) instruction: Receive complete flag
3 3 3 3 D8123 3333 3
[M]8124 RS (FNC 80) instruction: Carrier detection flag
3 3 3 3 – 3333 3
[M]8125 Not used
– – – – – –––– –
[M]8126 Computer link [ch1] Global ON
3 3 3 3
D8127
D8128
D8129
3333 3
[M]8127
Computer link [ch1] On-demand send
processing
3 3 3 3 ––3 – 3
M 8128 Computer link [ch1] On-demand error flag
3 3 3 333333
M 8129
Computer link [ch1] On-demand Word / Byte
changeover
RS (FNC 80) instruction: Time-out check flag
3 3 3 333333
*3. Cleared when PLC switches from RUN to STOP or RS instruction is OFF.
Number and name Operation and function
Applicable model
FX 3G FX 3GC FX3U FX 3UC
Correspond-
ing special
device
FX 1S FX 1N FX 2N FX 1NC FX 2NC

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