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FX3S/FX3G/FX3GC/FX3U/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
–––
*2
*2
[M]8105
ON during writing in RUN mode
*1
– –––––
[M]8106 Not used – – – – – – –––––
[M]8107 Device comment registration check – – – 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 – D8109 – – –
[M]8110
Not used
– – – – – – –––––
[M]8111 – – – – – – –––––
Expansion Board [For FX3S/FX3G]
[M]8112 FX3G-4EX-BD: BX0 input
*3
*4
– – – – –––––
[M]8113 FX3G-4EX-BD: BX1 input
*3
*4
– – – – –––––
[M]8114 FX3G-4EX-BD: BX2 input
*3
*4
– – – – –––––
[M]8115 FX3G-4EX-BD: BX3 input
*3
*4
– – – – –––––
M 8116 FX3G-2EYT-BD: BY0 output
*3
*4
– – – – –––––
M 8117 FX3G-2EYT-BD: BY1 output
*3
*4
– – – – –––––
[M]8118
Not used
– – – – – – –––––
[M]8119 – – – – – – –––––
*3. Available in Ver. 1.10 or later.
*4. Available in Ver. 2.20 or later.
Expansion Board [For FX1S/FX1N]
M 8112
FX1N-4EX-BD: BX0 input – – – – –––––
FX1N-2AD-BD: ch1 input mode change – – – – – D8112 –––
M 8113
FX1N-4EX-BD: BX1 input – – – – –––––
FX1N-2AD-BD: ch2 input mode change – – – – – D8113 –––
M 8114
FX
1N-4EX-BD: BX2 input – – – – –––––
FX
1N-1DA-BD: output mode change – – – – – D8114 –––
M 8115 FX1N-4EX-BD: BX3 input – – – – –––––
M 8116 FX
1N-2EYT-BD: BY0 output – – – – –––––
M 8117 FX1N-2EYT-BD: BY1 output – – – – –––––
[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
*5
RS (FNC 80) instruction: Send wait flag –
M 8122
*5
RS (FNC 80) instruction: Send request D8122
M 8123
*5
RS (FNC 80) instruction: Receive complete flag D8123
[M]8124 RS (FNC 80) instruction: Carrier detection flag –
[M]8125 Not used – – – – – – –––––
[M]8126 Computer link [ch1] Global ON
D8127
D8128
D8129
[M]8127
Computer link [ch1]
On-demand send processing
–––
M 8128 Computer link [ch1] On-demand error flag
M 8129
Computer link [ch1]
On-demand Word / Byte changeover
RS (FNC 80) instruction: Time-out check flag
*5. Cleared when PLC switches from RUN to STOP or RS instruction is OFF.
Number and
name
Operation and function
Applicable model
FX
3S
FX
3G
FX
3GC
FX
3U
FX
3UC
Correspond-
ing special
device
FX
1S
FX
1N
FX
1NC
FX
2N
FX
2NC