405
FX
3UC
Series Programmable Controllers
User’s Manual - Hardware Edition
12 Test Operation, Adjustment, Maintenance and Troubleshooting
12.7 FX3UC-32MT-LT Built-in CC-Link/LT Troubleshooting
11
Mem
ory
Cass
ette/B
attery
12
Te
st
R
un,
M
aint
enanc
e,
Troubleshoot
ing
A
Ve
rs
ion
In
fo
rm
atio
n
B
Per
for
m
ance
Specif
icati
ons
C
S
pec
ia
l D
evices
(M80
00 -,
D
800
0 -)
D
In
str
uct
ion List
E
C
har
ac
te
r-code
F
D
isconti
nued
m
odels
12.7.3 Detailed error information [BFM #29 (1Dh)]
1. Detailed description
Each type of error is assigned to a bit of the buffer memory [BFM #29 (1Dh)]. The status is indicated by the 0
(OFF)/1 (ON) status of each bit.
Bit
Function
Description
Error flag restoration operation
b0
Link error in
some stations
Turns ON when link error has occurred in some
stations. [Turns ON when any bit in BFM #4 (4h) to
7 (7h) have turned ON.]
For the station number in which the error has
occurred, refer to the link error station information
[BFM #4 (4h) to 7 (7h)].
When the cause of the error is
eliminated, the error flag is
automatically restored.
b1
Link error in
all stations
Turns ON when data link error has occurred in all
stations.
When the cause of the error is
eliminated, the error flag is
automatically restored.
b2
Remote I/O
error
Turns ON when remote I/O error has occurred.
[Turns ON when any bit in BFM #8 (8h) to 11 (Bh)
have turned ON.]
For the station number, refer to the remote I/O error
information [BFM #8 (8h) to 11 (Bh)].
For the type of error, refer to the instruction manual
of the appropriate remote station.
When the cause of the error is
eliminated, the error flag is
automatically restored.
b3
Out-of-
control-range
station error
Turns ON when a remote station not registered in
the detailed remote station information [BFM #32
(20h) to #95 (5Fh)] is connected to the network.
If the station number of the
connected remote station is smaller
than the final station number, the
error flag is automatically restored
when the cause of the error is
eliminated.
If the station number of the
connected remote station is larger
than the final station number, the
error flag is restored when the cause
of the error is eliminated and is
followed by a power reset.
b4
Transmission
speed setting
error
Turns ON when the transmission speed setting DIP
switch is set to an incompatible position.
When the cause of the error is
eliminated, and power is reset, the
error flag is automatically restored.
b5
-
Prohibited to use
-
b6
RD station
setting error
Turns ON when a RD station is connected to a
station number outside the range No. 49 to No. 64.
Turns ON when a RD station is used in 4-point
mode.
When the cause of the error is
eliminated and the power is reset, the
error flag is automatically restored.
b7
EEPROM
error
Turns ON when a RD station is connected to a
station number outside the range No. 49 to No. 64.
Turns ON when a RD station is used in 4-point
mode.
If the case that a request to write to
the EEPROM is given in any mode
other than CONFIG mode, the error
flag is automatically restored when
the request to write to the EEPROM
is cleared.
In the case of EEPROM write error or
read error, the error flag is not
restored.
b8
DIP switch
changed
Turns ON when the DIP switch setting is changed
during operation.
When the DIP switch setting is
returned to original status at the time
of power ON, the error flag is
automatically restored.
If the DIP switch setting must be
changed, reset the power.
b9 to b14
-
Prohibited to use
-
b15
Hardware
error
Turns ON when an abnormality is detected in the
self-loop-back test.
This error flag is not restored
because something is wrong with the
hardware.
Summary of Contents for FX3UC Series
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