Mitsubishi Electronics FX3G

822

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 -)

Error Detection (Refer to Chapter 38 for details.)

[M]8060 I/O configuration error 3 3 3 D8060 – – 3–3

[M]8061 PLC hardware error 3 3 3 D8061 3333 3

[M]8062 PLC/PP communication error – – – D8062 – – 3–3

Serial communication error 0 [ch0] 3–– D8062 – – – – –

[M]8063*1*2 Serial communication error 1 [ch1] 3 3 3 D8063 3333 3

[M]8064 Parameter error 3 3 3 D8064 3333 3

[M]8065 Syntax error 3 3 3

D8065

D8069

D8314

D8315

3333 3

[M]8066 Ladder error 3 3 3

D8066

D8069

D8314

D8315

3333 3

[M]8067*3 Operation error 3 3 3

D8067

D8069

D8314

D8315

3333 3

M 8068 Operation error latch 3 3 3

D8068

D8312

D8313

3333 3

M 8069*4 I/O bus check 3 3 3 –––3–3

*1. The operation varies according to PLC:

- Cleared in an FX1S, FX1N, FX2N, FX1NC, or FX2NC when PLC switches from STOP to RUN.

- Cleared in an FX3G, FX3U, or FX3UC PLC when the power is turn off and on.

*2. Serial communication error 2 [ch2] is detected by M8438 in FX3G, FX3U and FX3UC PLCs.

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

*4. When M8069 is ON, I/O bus check is executed. <Refer to Subsection 37.3.1 for details.>

Parallel Link

M 8070*5 Parallel link Set M8070 when using master station. 3 3 3 –3333 3

M 8071*5 Parallel link Set M8071 when using slave station. 3 3 3 –3333 3

[M]8072 Parallel link ON when operating 3 3 3 –3333 3

[M]8073 Parallel link

ON when M8070 or M8071 setting is incorrect 3 3 3 –3333 3

*5. Cleared when PLC switches from STOP to RUN.

Sampling Trace [FX3U, FX3UC, FX2N, and FX2NC PLCs ]

[M]8074 Not used – – – – –––– –

[M]8075 Ready request for sampling trace –3 3

D8075 to

D8098

––3–3

[M]8076 Start request for sampling trace –3 3 ––3–3

[M]8077 ON during sampling trace –3 3 ––3–3

[M]8078 ON when sampling trace is completed –3 3 ––3–3

[M]8079 Sampling trace system area –3 3 ––3–3

Number and name Operation and function

Applicable model

3G FX3U

3UC

Correspond-

ing special

device

1NC

2NC