Rockwell Automation MD60 Serial Converter Module - M/N MDCOMM 232 User Manual
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Serial Converter Parameters
B-5
Number of NAK (Negative Acknowledgement) characters received
by the Serial Converter.
This value is normally a low value. If it is continually incrementing
and you are having communications problems, use a lower baud
rate or replace the RECBL-SFC serial cable.
Number of NAKs (Negative Acknowledgements) sent by the Serial
Converter because of corrupt packets (improper protocol
messages) as determined by the Serial Converter.
This value is normally a low value. If it is continually incrementing
and you are having communications problems, use a lower baud
rate or replace the RECBL-SFC serial cable.
Number of NAKs (Negative Acknowledgements) sent by the Serial
Converter because it did not have sufficient memory to buffer the
incoming messages. The Serial Converter runs out of memory if a
command was not completed and there is no place to save the new
commands.
This value is normally a low value. If it is continually incrementing
and you are having communications problems, use a lower baud
rate or replace the RECBL-SFC serial cable.
12
NAKs Received
Range:
0 to 65535
Default:
0
Type:
Read Only
13
NAK Bad Packet
Range:
0 to 65535
Default:
0
Type:
Read Only
14
NAK No Memory
Range:
0 to 65535
Default:
0
Type:
Read Only