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Chapter 3: Configuring the Port Table
(A166PORT):
The Port table contains the relevant configuration information for communication port setup.
Each record in the Port table defines the communication parameters for a single communication
port.
Name Range Description
Communication Port Any valid communication port
(hardware dependent)
This parameter contains the ASCII descriptor for the
communication port to use. For example, for the D20 valid
communication ports are “COM1" through “COM7".
Message Timeout 50 .. 65535 This parameter defines the total message timeout in
milliseconds. Received messages must be completed in this
time frame to be considered valid responses. Message timeout
is measured from the end of command transmission to the end
of the response.
A typical value would be 500 character times.
The character time for 9600 baud is 2 ms
Inter-Character
Timeout
2 char times .. 65535 This parameter specifies the maximum time, in milliseconds,
that may expire between received characters. If this time
expires, the message is considered to be finished.
A typical value would be 3 character times.
The character time for 9600 baud is 2 ms
Retries Before
Failure
00 .. 65535 This parameter defines the number of times to retry a
message before reporting a communication failure.
A typical value is 3.
Failures Before
Off-line
1 .. 65535 This parameter defines the number of consecutive
communication failures that cause a SRU to be taken off-
line.
A typical value is 3.
Table 3 Port Configuration Table Parameters