Same Id Used Detection Function - Mitsubishi Electric MELSEC-Q Series User Manual

8.6

Same ID Used Detection Function

This function allows the master module to check whether the same ID is used for all the slave modules with the
addresses that have been automatically detected.
● IDs are detected with automatic address detection. If the CPU module is reset or the system is powered off after ID
duplication detection, the ID duplication status cannot be checked until the automatic address detection is performed
again.
● Only a single ID is stored in Number of the alarm IDs (Un\G9984) and Alarm ID information storage area (Un\G9985 to
Un\G10112) when the same ID is the cause. For example, when multiple modules have ID 10, "1" is stored in Number of
the alarm IDs (Un\G9984) and "10" is stored in Alarm ID information storage area (Un\G9985 to Un\G10112).
(1) Same ID used status
When the AnyWireASLINK system is in the following status, the same ID is used for multiple modules.
Even in the same ID used status, the AnyWireASLINK bit transmission is not stopped.
• Slave module alarm signal (X(n+1)0) turns on.
• Same ID used error (error code: 0190
duplicated ID is stored in Latest error ID storage area (Un\G10257).
• An error (error code: 0190
GX Works2.
• The relevant ID is stored in Alarm ID information storage area (Un\G9985 to Un\G10112).
*1 If multiple errors occur simultaneously, the latest error is displayed.
(2) How to recover from same ID used status
Check Number of the alarm IDs (Un\G9984) and Alarm ID information storage area (Un\G9985 to Un\G10112).
Then set a unique ID (address) in all the slave modules. ( Page 55, Section 7.2)
Error status is cleared by executing automatic address detection in the master module after setting the IDs
(addresses) in the slave modules. ( Page 57, Section 7.3)
Remark
While an ID (address) is used for multiple slave modules, executing either of the following can eliminate the same ID used
error. However, the address is still used for the multiple slave modules.
• Powering off and on the AnyWireASLINK system
• Turning on and off Error flag clear command (Yn0)
) is stored in Latest error code storage area (Un\G10256) and the
H
) is displayed in the detailed information section on the system monitor window of
H
*1
CHAPTER 8 FUNCTIONS
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