30
4 FUNCTION
4.8 Disconnected Transmission Cable Location Detection Function
4.8
Disconnected Transmission Cable Location
Detection Function
This function notifies the ID of a slave module that has been separated from the FX5-ASL-M because of disconnection in the
transmission cables (DP, DN) between the FX5-ASL-M and the slave module, to locate the disconnection in the transmission
cables (DP, DN) from the upper system.
• To enable the disconnected transmission cable location detection function, execute automatic address
detection when configuring, modifying, or expanding the system. (
• After a system is configured, the disconnection detection may still work when a slave module is
disconnected from the system. Execute automatic address detection after modifying the system.
• Even if disconnection in the transmission cable (DP, DN) is detected, the AnyWireASLINK bit transmission
does not stop.
How to check the transmission cable disconnection status
When the AnyWireASLINK system is in the following status, the transmission cable (DP, DN) have been disconnected or a
slave module error has occurred.
• The ALM LED turns on.
*1
• 'DP/DN disconnection error' (Un\G28 b4) turns on.
• The number of error IDs is stored in 'Number of the error IDs' (Un\G8192).
• The disconnected ID (address) is stored in 'Error ID information storage area' (Un\G8193 to Un\G8320).
• The bits of 'Error ID information bit area (output)' (Un\G8704 to Un\G8719) and 'Error ID information bit area (input)'
(Un\G8736 to Un\G8751) corresponding to the disconnected ID (address) turn on.
• DP/DN disconnection error (error code: 0CCAH) is stored in 'Latest error code storage area' (Un\G10256) and the
disconnected ID is stored in 'Latest error ID storage area' (Un\G10257).
*1
*1 If multiple errors occur simultaneously, the latest error is displayed.
How to recover from the transmission cable disconnection status
How to recover from the transmission cable disconnection status is as follows.
1.
Eliminate the disconnection in the AnyWireASLINK system.
When the disconnection status is exited, AnyWireASLINK bit transmission resumes automatically.
When the slave module has been disconnected from the system, execute automatic address detection. (
Automatic Address Detection Function)
2.
Power off and on the AnyWireASLINK system or turn on and off 'Error flag clear command' (Un\G27 b0).
The following status is resulted:
• 'DP/DN disconnection error' (Un\G28 b4) turns off.
• The ALM LED turns off.
• The data in 'Latest error code storage area' (Un\G10256) and 'Latest error ID storage area' (Un\G10257) are cleared.
• When the automatic address detection is executed in step 1, the operation in step 2 is not necessary.
• If the error status automatic recovery mode is set in "Error status automatic recovery" of "Basic setting", the
error status is automatically cleared after the disconnection status is exited.
Summary of Contents for MELSEC iQ-F FX55-ASL-M
Page 1: ...MELSEC iQ F FX5 User s Manual ASLINK ...
Page 2: ......
Page 12: ...10 INDEX 88 REVISIONS 90 WARRANTY 91 TRADEMARKS 92 ...
Page 13: ...11 CONTENTS ...
Page 23: ...3 PROCEDURES BEFORE OPERATION 21 3 MEMO ...
Page 91: ...I 89 MEMO ...
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