10 - 10 10 - 10
MELSEC-Q
10 TROUBLESHOOTING
Error
code
(Hex.)
Detected
in:
Description Action
Detectability
Master
function
Slave
function
21
H
QJ71DN91
DNTMWR was not executed for three
sequence scans although "Data
consistency dedicated instruction setting
for master function" is enabled.
• Correct the sequence program so that
DNTMWR is executed in every scan.
• When not using Data consistency
dedicated instruction, disable "Data
consistency dedicated instruction setting
for master function", then turn on I/O
Communication Request (Y11).
22
H
QJ71DN91
DNTSRD was not executed for three
sequence scans although "Data
consistency dedicated instruction setting
for slave function" is enabled.
• Correct the sequence program so that
DNTSRD is executed in every scan.
• When not using Data consistency
dedicated instruction, disable "Data
consistency dedicated instruction setting
for slave function", then turn on I/O
Communication Request (Y11).
23
H
QJ71DN91
DNTSWR was not executed for three
sequence scans although "Data
consistency dedicated instruction setting
for slave function" is enabled.
• Correct the sequence program so that
DNTSWR is executed in every scan.
• When not using Data consistency
dedicated instruction, disable "Data
consistency dedicated instruction setting
for slave function", then turn on I/O
Communication Request (Y11).
24
H
QJ71DN91
The master function is used but "Data
consistency dedicated instruction setting
for slave function" was enabled and I/O
communication was started.
• Disable "Data consistency dedicated
instruction setting for slave function", then
turn on I/O Communication Request
(Y11).
25
H
QJ71DN91
The slave function is used but "Data
consistency dedicated instruction setting
for master function" was enabled and I/O
communication was started.
• Disable "Data consistency dedicated
instruction setting for master function",
then turn on I/O Communication Request
(Y11).
80
H
QJ71DN91
The number of slave function receive
bytes is out of range.
• Set it within the range of 0 to 128 bytes.
81
H
QJ71DN91
The number of slave function transmit
bytes is out of range.
• Set it within the range of 0 to 128 bytes.
82
H
QJ71DN91
Both of the slave function transmit and
receive bytes are set to 0.
• Set either of the transmit or receive bytes
to any other than 0.
A0
H
QJ71DN91
When using both the master and slave
functions, the number of I/O points is set
to 0 for both of them.
• Set I/O points of slave nodes in
Parameters for Master Function.
• Set transmit/receive bytes in Parameters
for Slave Function.
(Either of master or slave function values
must be set.)
Summary of Contents for QJ71DN91
Page 1: ...DeviceNet Master Slave Module User s Manual QJ71DN91 GX Configurator DN SW1D5C QDNU E ...
Page 2: ......
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