Mitsubishi Electronics FX3G

850

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 -)

RS2 (FNC 87) [ch2] and Computer Link [ch2] (Refer to Data Communication Edition for details.)

D 8420 RS2 (FNC 87) [ch2] Communication format setting 3 3 3 – –––– –

D 8421 Computer link [ch2] Station number setting 3 3 3 – –––– –

[D]8422*1 RS2 (FNC 87) [ch2] Remaining points of transmit

data 3 3 3 M8422–––– –

[D]8423*1 RS2 (FNC 87) [ch2] Monitoring receive data points 3 3 3 M8423–––– –

[D]8424 Not used – – – – –––– –

[D]8425 Communication parameter display [ch2] 3 3 3 – –––– –

[D]8426 Not used – – – – –––– –

D 8427 Computer link [ch2]

Specification of on-demand head device register 3 3 3

M8426 to

M8429

–––– –

D 8428 Computer link [ch2]

Specification of on-demand data length register 3 3 3 –––– –

D 8429 RS2 (FNC 87) [ch2], computer link [ch2]

Time-out time setting 3 3 3 –––– –

D 8430 RS2 (FNC 87) [ch2]

Header 1 and 2 <Default: STX> 3 3 3 – –––– –

D 8431 RS2 (FNC 87) [ch2] Header 3 and 4 3 3 3 – –––– –

D 8432 RS2 (FNC 87) [ch2] Terminator 1 and 2

<Default: ETX> 3 3 3 – –––– –

D 8433 RS2 (FNC 87) [ch2] Terminator 3 and 4 3 3 3 – –––– –

[D]8434 RS2 (FNC 87) [ch2] Receive sum (received data) 3 3 3 – –––– –

[D]8435 RS2 (FNC 87) [ch2]

Receive sum (calculated result) 3 3 3 – –––– –

[D]8436 RS2 (FNC 87) [ch2] Send sum 3 3 3 – –––– –

[D]8437 Not used – – – – –––– –

*1. Cleared when the PLC switches from RUN to STOP.

FX3U-CF-ADP [ch1] (Refer to CF-ADP Manual for details.)

[D]8400 to [D]8401 Not used – – – – –––– –

[D]8402

Step number of executing CF-ADP instruction*3 –3*2 3*2 – –––– –

[D]8403 –3*2 3*2 – –––– –

[D]8404 to [D]8405 Not used – – – – –––– –

[D]8406 CF-ADP status –3*2 3*2 – –––– –

[D]8407 Not used – – – – –––– –

[D]8408 CF-ADP version –3*2 3*2 – –––– –

[D]8409 to [D]8413 Not used – – – – –––– –

[D]8414

Error step number of M8418*2 –3*2 3*2 – –––– –

[D]8415 –3*2 3*2 – –––– –

[D]8416 Not used – – – – –––– –

[D]8417 Error code in detail for CF-ADP instructions*3*4 –3*2 3*2 – –––– –

[D]8418 Error code for CF-ADP instructions*3*4 –3*2 3*2 – –––– –

[D]8419 Operation mode display –3*2 3*2 – –––– –

*2. Available in Ver. 2.61 or later.

*3. Cleared when the PLC switches from STOP to RUN.

*4. For details on the error code is stored in special data register, refer to the CF-ADP Manual.

Number and name Content of register

Applicable model

3UC

Correspond-

ing special

device

1NC

2NC