Symptom Checklist - Mitsubishi Electric CC-Link-AnyWire Bitty Bridge User Manual

12.2

Symptom checklist

(1) CC-Link side
Symptom
Is the cable disconnected?
Are the terminating resistors (110)
connected to the stations on both ends?
Is there an error in the CPU module of the
master station?
Were the parameters set in the master
station?
The data link is
failed in the
Is Data link startup request (Yn6 or Yn8)
entire system.
turned on?
Is there an error in the master station?
Does the scan time exceed the maximum
value while the synchronous mode is
selected?
Is the remote device station in the data link?
The remote
input (RX) of the
Is the data being read from the correct
NZ2AW1C1BY
address of the remote input (RX)?
cannot be
Was it set as a reserved station?
loaded.
Is the same station number used for multiple
stations?
Is the remote device station in the data link?
The remote
Is Refresh instruction (Yn0) of the master
output (RY) of
station turned on?
the
NZ2AW1C1BY Is the data being written to the correct
cannot be address of the remote output (RY)?
turned on/off.
Was it set as a reserved station?
Is the same station number used for multiple
stations?
Is the remote device station in the data link?
The data of the
remote register
Is the data being read from the correct
(RWr) of the
address of the remote register (RWr)?
NZ2AW1C1BY
cannot be
Was it set as a reserved station?
loaded.
Is the same station number used for multiple
stations?
Check item
Check the condition of the cable visually or by line test.
Check Line status (SW0090).
Connect the terminating resistors included with the
master/local modules to the stations on both ends.
Check the error code of the CPU module and take
corrective actions.
Check the parameter settings.
Check the program.
Check the following.
Select the asynchronous mode or reduce the
transmission speed.
Check the status by the following methods.
Check the program.
Check the parameters.
Check the station numbers.
Check the status by the following methods.
Check the program.
Check the program.
Check the parameters.
Check the station numbers.
Check the status by the following methods.
Check the program.
Check the parameters.
Check the station numbers.
Check method
• Remote network-Ver.2 mode or Remote network-
addition mode
• Ver.2 remote device station
• Double, Exclusive Station 4
• Host parameter status (SW0068)
• Switch setting status (SW006A)
• Loading status (SW0069)
• Whether the ERR LED on the master station is
flashing or not.
• LED indication status of the module
• Other station data link status (SW0080 to SW0083)
• LED indication status of the module
• Other station data link status (SW0080 to SW0083)
• LED indication status of the module
• Other station data link status (SW0080 to SW0083)
CHAPTER 12 TROUBLESHOOTING
Check
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