853
FX
3U
/FX
3UC
Series Programmable Controllers
Programming Manual - Basic & Applied Instruction Edition
37 Error Check Method and Error Code List
37.4 Error Code List and Action
31
FN
C
275-FN
C
279
Da
ta
Tr
ans
fe
r 3
32
FN
C
280
-F
N
C
28
9
H
igh Speed
Pr
oces
si
ng 2
33
FN
C
290-FN
C
299
Ext
ensi
on Fi
le
R
egi
st
er
34
SF
C
•S
T
L
Pr
o
g
ra
m
m
in
g
35
In
te
rru
p
t
Funct
ion
36
Sp
e
cia
l De
vic
e
37
E
rro
r C
o
d
e
A
V
e
rs
ion U
p
In
fo
rm
a
tio
n
B
Ex
ec
ut
ion Ti
m
e
s
C
Appl
ic
ab
le
In
st
ru
ct
ion Li
st
Operation error [M8067(D8067)]
6708
Continues
operation
FROM/TO instruction error
This error occurs in the execution of operation.
•
Review the program, or check the contents of
the operands used in the applied instructions.
•
Check whether the specified buffer memories
exist in the equipment.
•
Check whether the extension cables are
correctly connected.
6709
Other (e.g. improper branching)
This error occurs in the execution of operation.
Review the program, or check the contents of the
operands used in the applied instructions.
Even if the syntax or circuit design is correct, an
operation error may still occur.
For example:
"T200Z" itself is not an error. But if Z had a value of
400, the timer T600 would be attempted to be
accessed. This would cause an operation error
since there is no T600 device available.
6710
Mismatch among parameters
This error occurs when the same device is used
within the source and destination in a shift
instruction, etc.
6730
Incorrect sampling time (T
S
) (T
S
≤
0)
<PID instruction is stopped.>
This error occurs in the parameter setting value or
operation data executing PID instruction.
Check the contents of the parameters.
6732
Incompatible input filter constant (
α
)
(
α
< 0 or 100
≤
α
)
6733
Incompatible proportional gain (K
P
) (K
P
< 0)
6734
Incompatible integral time (T
I
) (T
I
< 0)
6735
Incompatible derivative gain (K
D
)
(K
D
< 0 or 201
≤
K
D
)
6736
Incompatible derivative time (T
D
) (T
D
< 0)
6740
Sampling time (T
S
)
≤
Scan time
<Auto tuning is continued.>
The operation is continued in the condition
"sampling time (T
S
) = cyclic time (scan time)".
6742
Variation of measured value exceeds limit.
(
U
PV <
−
32768 or +32767 <
U
PV)
<PID operation is continued.>
The operation is continued with each parameter set
to the maximum or minimum value.
6743
Deviation exceeds limit.
(EV <
−
32768 or +32767 < EV)
6744
Integral result exceeds limit.
(Outside range from
−
32768 to +32767)
6745
Derivative value exceeds limit due to derivative
gain (K
D
).
6746
Derivative result exceeds limit.
(Outside range from
−
32768 to +32767)
6747
PID operation result exceeds limit.
(Outside range from
−
32768 to +32767)
6748
PID output upper limit set value < PID output lower
limit set value.
<Output upper limit value and output lower limit
value are incorrectly specified.
→
PID operation is
continued.>
Check whether the target setting contents are
correct.
6749
Abnormal PID input variation alarm set value or
output variation alarm set value (Set value < 0)
<Alarm output is not given.
→
PID operation is
continued.>
Check whether the target setting contents are
correct.
Error codes in shaded columns are added in FX
3U
and FX
3UC
PLCs.
Error
code
PLC operation at
error occurrence
Contents of error
Action
