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Mitsubishi Electric MELSEC iQ-R AnyWireASLINK User Manual Page 80

Master module.
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When data of the slave module cannot be checked
When I/O data and parameter data of the slave module cannot be checked, check the following.
Check item
Is the I/O information of the slave module stored in the following buffer
memory addresses in the program?
• 'Bit input information area' (Un\G0 to Un\G15)
• 'Word input information area' (Un\G512 to Un\G1023)
• 'Bit output information area' (Un\G4096 to Un\G4111)
• 'Word output information area' (Un\G4608 to Un\G5119)
Are the I/O LEDs of the slave module normal?
Are two or more RJ51AW12AL modules connected within one
AnyWireASLINK line?
Are the number of transmission points of the RJ51AW12AL and the address
setting of the slave module correct?
Are the automatic address detection and AnyWireASLINK version
compatibility inspection in progress?
When the easy replacement setting for one slave module is not available
When the easy replacement setting for one slave module is not available, check the following.
Check item
Is the easy replacement setting for one slave module enabled?
Does a DP/DN disconnection error exist on only one slave module?
Are the old and new slave modules of the same type?
Was the slave module replaced with a new one of an updated device version?
Is the new slave module connected firmly?
Does the new slave module support easy replacement function for one slave
module?
Do any errors other than DP/DN disconnection errors exist?
4 TROUBLESHOOTING
4.3 Troubleshooting by Symptom
Action
Check that information regarding the slave module has been properly
assigned and that the commands written in the program are free from
mistakes.
Check the I/O LED status of the slave module and check that there is no
disconnection, short circuit, or poor contact in the wiring on the load side.
Connect only one RJ51AW12AL module within one AnyWireASLINK line.
• Check that the address of the slave module is within the setting range of the
number of points of the RJ51AW12AL.
• Check that the ID or occupied address range of the slave module is not the
same as that of other slave modules.
• When using word transmission, check that the setting items are correct.
• Check that the bit address is not mixed up with the word address.
Check again after the automatic address detection and AnyWireASLINK
version compatibility inspection complete.
Action
Enable the easy replacement setting for one slave module by setting the
module parameter. ( Page 51 Enabling/disabling the easy replacement
setting for one slave module)
Disconnect the slave module to be replaced from the transmission cable, and
replace it using the easy replacement for one slave module function.
To replace two or more slave modules, turn off the power after replacing the
first module, disconnect the second slave module, and replace it using the
easy replacement setting for one slave module.
Replace the slave module with a new one of the same type.
Replace the slave module with a new one of an updated device version.
Connect the new slave module firmly to the transmission cable.
Replace the slave module with a new one supporting easy replacement
function for one slave module.
Eliminate errors other than DP/DN disconnection errors, and replace the slave
module using the easy replacement for one slave module function.

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