Mitsubishi Electronics FX3G

824

FX3G/FX3U/FX3UC Series Programmable Controllers

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*1 –3*1

[M]8105 ON when writing to memory cassette 3 3 3 – –––– –

[M]8106 Not used – – – – –––– –

[M]8107 Device comment registration check –3 3 D8107 – – – – –

[M]8108 Not used – – – – –––– –

*1. Available in Ver. 3.00 or later.

Output Refresh Error (Refer to Chapter 38 for details.)

[M]8109 Output refresh error 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*2 RS (FNC 80) instruction: Send wait flag 3 3 3 –3333 3

M 8122*2 RS (FNC 80) instruction: Send request 3 3 3 D8122 3333 3

M 8123*2 RS (FNC 80) instruction: Receive complete flag 3 3 3 D8123 3333 3

[M]8124 RS (FNC 80) instruction: Carrier detection flag 3 3 3 –3333 3

[M]8125 Not used – – – – –––– –

[M]8126 Computer link [ch1] Global ON 3 3 3

D8127

D8128

D8129

3333 3

[M]8127 Computer link [ch1] On-demand send processing 3 3 3 ––3–3

M 8128 Computer link [ch1] On-demand error flag 3 3 3 3333 3

M 8129

Computer link [ch1] On-demand Word / Byte

changeover

RS (FNC 80) instruction: Time-out check flag

3 3 3 3333 3

*2. Cleared when PLC switches from RUN to STOP or RS instruction is OFF.

Number and name Operation and function

Applicable model

3G FX3U

3UC

Correspond-

ing special

device

1NC

2NC