Azbil AUR355 - Page 30

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Chapter 4. Communication
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End codes
End code Description Condition Operation
00 (Normal) Normal end
• The transmitted message was normal. All specified data was written.
99 (Error) Undefined
command
• The first two characters in the application layer
were an undefined command.
• The subaddress was not 00.
No data was written.
40 (Error) Error in the
number of data
words
• The number of data words was greater than the
number of accessible data words.
and
No data could be written. (All data in the
transmitted message met the conditions for an
error or alarm.)
No data was written.
41 (Error) Data address error
• A character other than 0H–FH was included in
the data address.
• The data address was not specified.
• The data address was 255 or lower.
and
No data could be written. (All data in the
transmitted message met the conditions for an
error or alarm.)
No data was written.
42 (Error) Data range error
• A character other than 0H–FH was included in
the write data.
• Write data was out of the data range
and
No data could be written. (All data in the
transmitted message met the conditions for an
error or alarm.)
No data was written.
20 (Warning) Error in the
number of data
words
• The number of data words was greater than the
number of accessible data words.
Data was written to the accessible
data addresses.
21 (Warning) Data address error
• A character other than 0H–FH was included in
the data address.
• The data address was not specified.
• The data address was 255 or lower.
Data was written to the accessible
data addresses.
22 (Warning) Invalid write data
• A character other than 0H–FH was included in
the write data.
Valid data was written.
23 (Warning) Could not write
• The process did not have write permission for a
data address.
No data was written to read-only
data addresses. If there was data
for accessible data addresses, it
was written.
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Maximum number of write data words per message
16