Write Data Error Code (Buffer Memory Address: 0 H ) - Mitsubishi Electric MELSEC Q Series User Manual

3 SPECIFICATIONS
3.5.2 Write data error code (buffer memory address: 0
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Stores the error code and buffer memory address of the error detected when write
from programmable controller CPU to the Q64TC buffer memory was performed.
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(1) When data is written from the programmable controller CPU, the Q64TC checks:
• Whether write destination is read-only area or not
• Whether write destination is reserved area or not
• Whether write data range is proper or not
(2) The following processings are performed at write error occurrence.
• Error code is stored (refer to Section 8.1 for error code details).
• Write error flag (Xn2) turns on.
(3) If more than one error has occurred, the error code and error occurrence address
of the error having the highest priority are stored. (Refer to Section 8.2 for details
of processing at error occurrence.)
(4) Refer to Section 8.1 for error resetting.
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H
b4 b2 b0
Error code
Error occurrence address
MELSEC-Q
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