App - 19 App - 19
MELSEC-Q
APPENDIX
Numbers in the A00
H
range • • • Errors related to communication processing
Error code
Meaning
Corrective action
A2A
H
, A2B
H
,
A61
H
, A62
H
,
A73
H
Error in communication with the console
Reset the communication module.
A75
H
Memory card verification error
Check the memory card size, etc.
A82
H
Cannot be used with the specified interface.
Change the interface.
A83
H
Time out error
Check devices on the transmission side.
A84
H
Reception error
Read the reception error cause using processing
code 64 of the ZCNTL instruction and check the
error contents.
A85
H
Communication buffer overflow
Do not send large amounts of data.
A91
H
The specification of the number of requested
characters is incorrect.
Specify the number of requested characters
correctly.
A92
H
The specification of the receive buffer size is
incorrect.
Specify the size within the range of 1024 bytes or
less.
A93
H
Baud rate specification is incorrect.
Specify the baud rate correctly.
A94
H
Character length specification is incorrect.
Specify the character length correctly.
A95
H
Parity bit specification is incorrect.
Specify the parity bit correctly.
A96
H
Stop bit specification is incorrect.
Specify the stop bit correctly.
A97
H
The specification of the number of break
characters is incorrect.
Specify the number of break characters correctly.
AA1
H
A printer connected to the parallel interface is
faulty.
Check the printer.
AC1
H
The size of an array used for a control table is
insufficient.
Increase the size of the array.
AC2
H
It is attempted to receive more data than the
number of input elements.
It is attempted to send more data than the number
of output elements.
Receive the same amount of data as the number of
input elements. Send the same amount of data as
the number of output elements.
AC4
H
The number of requested bytes during
communication is too large.
Specify an appropriate number of requested bytes.
AC7
H
A processing code for the ZCNTL instruction is
incorrect.
Check the processing code.