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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 FX
1S, FX1N, FX2N, FX1NC, or FX2NC when PLC switches from STOP to RUN.
- Cleared in an FX
3G, FX3U, or FX3UC PLC when the power is turn off and on.
*2. Serial communication error 2 [ch2] is detected by M8438 in FX
3G, 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 – 33333
[M]8073
Parallel link
ON when M8070 or M8071 setting is incorrect
3 3 3 – 33333
*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
FX
3G FX3U
FX
3UC
Correspond-
ing special
device
FX
1S
FX
1N
FX
2N
FX
1NC
FX
2NC