When Operation Error Occurs On The Master Station - Mitsubishi Electric MELSEC iQ-F FX5 User Manual
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Also See for MELSEC iQ-F FX5:
- Programming manual (1112 pages) ,
- User manual (958 pages) ,
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When operation error occurs on the master station
Problem
Check item
Data link cannot
G1-1
Data link stop
be stopped/
restarted.
G1-2
Data link restart
A faulty station
G2-1
Is the station set
cannot be
as an error
detected.
invalid station?
Are station
numbers unique?
A station
G3-1
• Can a faulty
becomes faulty at
station be
a certain
identified with
transmission
'Data link
speed.
status of other
stations'
(SW0080,
SW0081)?
• Are
communication
s normal if the
transmission
speed is slow
such as 156
kbps?
When multiple
G4-1
Number of retries
remote stations
setting
are
simultaneously
powered off at a
speed of 156
kbps, the L RUN
LED turns off
temporarily.
Description
Is 'Data link stop' (SB0002) turned
on?
Does no error occur?
Is 'Data link restart' (SB0000)
turned on?
Does no error occur?
Is the corresponding station
disconnected?
Is the station set as an error
invalid station?
Are station numbers unique?
• Can a faulty station be identified
with 'Data link status of other
stations' (SW0080, SW0081)?
• Are communications normal if
the transmission speed is slow
such as 156 kbps?
Number of retries setting
Check method
• Check the program.
• Check the refresh devices set in
the module parameters.
Check 'Data link stop result'
(SW0045).
• Check the program.
• Check the refresh devices set in
the module parameters.
Check 'Data link restart result'
(SW0041).
• Check cable status visually or
by the line test using the
engineering tool.
• Check the parameter. (For the
Intelligent device station)
• Check the operating status of
the CPU module on the
corresponding station.
Check 'Error invalid station
specification status' (SW0078,
SW0079).
Check 'Temporary error invalid
status' (SW007C, SW007D).
Check the station number setting.
Check transmission speed of the
faulty station.
Check if the cables are properly
wired.
Check if the cables are grounded
by the shielded part.
Check if terminating resistors are
connected to the both ends in the
CC-Link system.
Check if a station with built-in
terminating resistor is connected
other than at both ends in the CC-
Link system.
Check the number of retries.
9 TROUBLESHOOTING
9.4 Troubleshooting by Symptom
Corrective Action
• Correctly set the SB area.
• Turn on 'Data link stop'
(SB0002).
Take action according to the error
code.
• Correctly set the SB area.
• Turn on 'Data link restart'
(SB0000).
Take action according to the error
code.
Correct the cables and settings of
the corresponding station, and
start the system.
Cancel the error invalid station
setting.
Cancel the temporary error invalid
station setting.
Correct the station number setting.
Set the same transmission speed
as that set for the master station.
Correct the wiring.
Ground the shielded part.
Connect terminating resistors to
both ends in the CC-Link system.
• Increase the transmission
speed.
• Reduce the number of retries.
117
9
- Quick Links:
- Chapter 1 Description
- List of Error Codes
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Table of Contents
Troubleshooting
