B-45
FX Series PLC User's Manual - Data Communication Edition
N:N Network
9 Troubleshooting
9.6 Checking Absence/Presence of Data Transfer Errors
A
Common Items
B
N:N Network
C
Parallel Link
D
Computer Link
E
Inverter
Communication
F
Non-Protocol
Communication
(RS/RS2 Instruction)
G
Non-Protocol
Communication
(FX
2N
-232IF)
H
Programming
Communication
I
Remote
Maintenance
Apx.
Discontinued
models
2. Error code list
The data register for storing the data transfer error code stores the corresponding error code. When a data
transfer sequence error occurs, refer to the error code list shown below, and confirm the check points.
M: Master station, L: Slave station
*1. Any slave station other than the slave station in which error occurred
*2. Station in which error occurred
Error
code
Error name
Station
in which
error
occurred
Station
which
detected
error
Contents of error Check point
01H Monitoring timeout L M
Slave station did not respond to the
sending request from the master station
within the monitoring time.
Wiring and power
supply
02H
Station number
error
LM
An unexpected slave station responded
to the sending request by the master
station.
Wiring
03H Counter error L M
The counter value included in the
parameter data is different from the
counter value given by a slave station.
Wiring
04H
Message format
error
LM, L
The message given by the slave station
is incorrect.
Wiring, power
supply and station
number settings
11H Monitoring timeout M L
The master station did not give a sending
request to the next slave station within
the monitoring timer.
Wiring and power
supply
14H
Message format
error
ML
The message from the master station is
incorrect.
Wiring, power
supply and station
number settings
21H
Slave station no
response error
L
L
*1
The specified slave station does not exist.
Wiring, power
supply and station
number settings
22H
Station number
error
L
L
*1
An unexpected slave station responded
to the sending request by the master
station.
Wiring
23H Counter error L
L
*1
The counter value included in the
parameter data is different from the
counter value given by a slave station.
Wiring
31H
Parameter not
received
L
L
*2
Before parameters had been received,
sending request was received from the
master station.
Wiring and power
supply
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