9 Troubleshooting
9.3 Error Code List
123
FX
3U
-ENET-ADP User's Manual
1
Introduc
tion
2
Specifi
cation
3
Sy
stem
Configurati
on
4
Ins
tal
lation
5
Wi
rin
g
6
Introduction of
Functi
on
s
7
C
omm
uni
cation
U
sing
M
C
Protocol
8
The O
perati
on
of G
X
W
ork
s2
9
Troubl
es
hooti
ng
A
Li
st of S
peci
al
Dev
ices
9.3.2
End codes (completion codes) returned to an external device during data
communication
This section explains the end codes (completion codes) that are added to responses when communicating
using the MC protocol.
For more details on the error codes that are added to responses during communication using A compatible
1E frames through the MC protocol, refer to Subsection 9.3.3.
End code
(hexadecimal)
Description
Corrective action
00H
Normal completion
-
50H
Codes for command/response type of subheader are not within the
specifications (00 to 05H, 13 to 16H).
•
Check and correct command/ response
type set by an external device. (The
Ethernet adapter automatically adds
command/ response type; the user does
not need to set these.)
•
Check and correct the data length.
54H
When "ASCII code communication" is selected in the [Communication
data code settings] of operational setting parameters of GX Works2,
ASCII code data that cannot be converted to binary code was received
from an external device.
Check and correct the send data of the
external device.
56H
Device designation from the external side is incorrect.
Correct the device designated.
57H
•
The number of points for a command designated by an external device
exceeds the maximum number of processing points for each
processing (number of processes that can be executed per
communication).
•
Head device number to the designated points exceeds the maximum
addresses (device number).
•
When performing batch read/write operations on C200 to C255, the
number of device points was designated with an odd number.
Correct the designated points or device
number.
•
Byte length of a command does not conform to the specifications.
•
When writing data, the set number of points for data to be written is
different from the number of points specified.
Check the data length of the command and
adjust the data setting.
58H
Head device number of a command designated by an external device is
set outside the allowable range.
Designate the appropriate values within the
range that are allowed for each processing.
•
A word device is designated in a command for bit devices.
•
The head number of bit devices is designated by a value other than a
multiple of 16 in a command for word devices.
Correct the command or the designated
device.
5BH
•
The PLC and the Ethernet adapter cannot communicate.
•
The PLC cannot process requests from an external device.
Fix the faulty parts by referring to the
abnormal codes appended to the end codes
(refer to Subsection 9.3.3).
60H
Communication time between the Ethernet adapter and the PLC
exceeded PLC monitoring timer value.
Increase the monitoring timer value.
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