External Link Error - Mitsubishi Electric M800 Series Manual

M800/M80/E80/C80 Series Alarm/Parameter Manual
5 System Alarms (Z)
Z69

External link error

Details
A FROM/TO instruction was used while the MELSEC-Q interface expansion module is not installed.
Remedy
Install the MELSEC-Q interface expansion module.
Z69 External link error
Details
A negative value was set for an I/O No. in the FROM/TO instruction.
Remedy
Correct the I/O No.
Z69 External link error
Details
A negative value was set for transfer size in the FROM/TO instruction.
Remedy
Correct the transfer size.
Z69 External link error
Details
The number of FROM/TO instructions within one scan has exceeded 50.
Remedy
Correct the user PLC (ladder sequence) so that the number of FROM/TO instructions per scan is 50 or less.
Z69 External link error
Details
The access to the buffer memory by the FROM/TO instruction has exceeded 12K words per scan.
Remedy
Correct the user PLC (ladder sequence) so that the buffer memory access by the FROM/TO instruction won't
exceed 12K words per scan. (The total size of FROM/TO is up to 12K words.)
Z69 External link error
Details
A FROM/TO instruction was used in high-speed processing.
Remedy
Delete the FROM/TO instruction from high-speed processing.
Z69 External link error
Details
The bit device number designated in the FROM/TO instruction is not a multiple of 16.
Remedy
Correct the bit device number designated in the FROM/TO instruction to be a multiple of 16.
Z69 External link error
Details
With a FROM/TO instruction, a value out of the address range (negative value, or 0x8000 or over) was set as
the head address of the buffer memory.
Remedy
Correct the head address of the buffer memory.
Z69 External link error
Details
An alarm occurred in the MELSEC module mounted on the extension base.
Remedy
Check for any disconnection of the MELSEC module and the cables on the extension base. Then turn the
CNC's power ON again.
IB-1501279-H
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