Disconnected Transmission Cable Location Detection Function - Mitsubishi Electric AnyWire NZ2AW1C2AL User Manual

Disconnected transmission cable location detection function

This function notifies the ID of the slave module that has been disconnected from the bridge module because of disconnection
in the transmission cable (DP, DN) between the bridge module and the slave module, to locate the disconnection in the
transmission cables (DP. DN).
• To enable the disconnected transmission cable location detection function, perform the automatic address
detection when configuring, modifying, or expanding the system. (Page 54 Performing the automatic
address detection)
• After the system configuration, the disconnection detection may work when the slave module is
disconnected from the system.
• Even if disconnection in the transmission cables (DP, DN) is detected, the AnyWireASLINK bit transmission
is not stopped.
Transmission cable disconnection status
When the system is in the following status, the transmission cables (DP, DN) or a slave module have been disconnected.
*1
• The ALM LED turns on.
• DP/DN disconnection error (RXn4) turns on.
• The number of error IDs is stored in Number of the error IDs (RWrn+19).
• The ID of the disconnected slave module is notified from the bridge module to the device of the CPU module.
• 00CAH is stored in Latest error code storage area (RWrn+16).
• The ID of the disconnected slave move is stored in Latest error ID storage area (RWrn+17).
• The ID of the disconnected slave module is stored in Latest error ID simple information (RXn6 to RXnF).
*1 If multiple errors occur simultaneously, the latest error is displayed.
*2 This applies only when the CC-Link operation mode is Ver.2.00.
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 is eliminated, AnyWireASLINK bit transmission is resumed automatically.
If the status does not change, the disconnection has not been eliminated. Therefore, check the system again.
The following status is maintained:
• ON state of DP/DN disconnection error (RXn4)
• Flashing of the ALM LED
• Data in Latest error code storage area (RWrn+16), Latest error ID storage area (RWrn+17), and Latest error ID simple
information (RXn6 to RXnF)
*1 If multiple errors occur simultaneously, the latest error is displayed.
2.
Power off and on the bridge module or turn on and off Error reset request flag (RY(n+1)A, RY(n+3)A, RY(n+5)A,
RY(n+7)A, RY(n+D)A).
The following status is resulted:
• DP/DN disconnection error (RXn4) turns off.
• The ALM LED turns off.
• The data in Latest error code storage area (RWrn+16), Latest error ID storage area (RWrn+17), and Latest error ID simple
information (RXn6 to RXnF) is cleared.
*1
*2
*1*2
*2
*1*2
*1
8 FUNCTIONS
8.2 Function Details
8
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