Mitsubishi Electronics FX3G User Manual
891
FX
3S
/FX
3G
/FX
3GC
/FX
3U
/FX
3UC
Series
Programming Manual - Basic & Applied Instruction Edition
38 Error Check Method and Error Code List
38.3 Supplementary Explanation of Devices for Error Detection
31
FNC277
-F
NC2
79
79
Da
ta
Trans
fer 3
fer 3
32
FNC28
0-F
NC
289
289
H
igh-Speed
Process
ing 2
33
FNC2
90-
FNC299
FNC299
Ex
tensi
on Fi
le
le
Register C
ontrol
34
FN
C300-
FNC30
5
FX
3U
-C
F-
AD
P
35
SFC
•STL
Programming
36
Interrupt
Function
37
Sp
ec
ia
l D
evi
ce
38
E
rror Code
A
Ve
rsi
on U
p
Inform
ati
on
B
Ex
ecuti
on
T
imes
38.3
Supplementary Explanation of Devices for Error Detection
38.3.1 Error detection (M8060 to/D8060 to)
When the M8060, M8061, M8064 to M8067 turn ON, the smallest ON device number is stored in D8004, and M8004
turns ON.
1) M8060,M8061,M8064 to M8067 are cleared when the PLC mode switches from STOP to RUN.
turns ON.
1) M8060,M8061,M8064 to M8067 are cleared when the PLC mode switches from STOP to RUN.
Note that M8068 and D8068 do not clear.
2) When turning M8069 ON in advance, PLC will enter STOP mode (as M8061 PLC hardware error occurs) if a
failure occurs in an I/O extension unit, an extension power supply module, or an extension unit/block.
When turning M8069 ON, PLC executes I/O bus check. If an error is found, error code 6103 or 6104 is stored to
D8061, and M8061 turns ON.
When error code 6104 is stored, M8009 turns ON, and the PLC stores the I/O numbers following the extension
power supply module or the powered extension unit with DC 24V output failure to D8009.
When turning M8069 ON, PLC executes I/O bus check. If an error is found, error code 6103 or 6104 is stored to
D8061, and M8061 turns ON.
When error code 6104 is stored, M8009 turns ON, and the PLC stores the I/O numbers following the extension
power supply module or the powered extension unit with DC 24V output failure to D8009.
3) If the unit or block corresponding to a programmed I/O number is not actually loaded, M8060 is set to ON and the
first device number of the erroneous block is written to D8060.
*1.
10 to 337 in FX
3U
/FX
3UC
PLCs, and 10 to 177 in FX
3G
/FX
3GC
PLCs
4) When a device number is specified directly or indirectly with an index by the LD, AND, OR or OUT instruction, and
if the device numbers specified in those instructions are not actually loaded, M8316 will turn ON and the error step
number in the instruction will be written to D8317 (high-order bits) and D8316 (low-order bits).
number in the instruction will be written to D8317 (high-order bits) and D8316 (low-order bits).
1 0 2 0
1: Input (X), 0: Output (Y)
Device number
Example: When X020 is unconnected
BCD conversion value
*1