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7
PARAMETER SETTING
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(Example 2) TCP split transmission count for communication on the other line
The Maximum Segment size is a minimum of 536 bytes on the other
line (e.g. via a dial-up router) and the TCP split transmission count is
as described below.
When QJ71MT91 transmission message size ≤ 536 bytes, n = 1
When 536 bytes < QJ71MT91 transmission message size ≤ 1072
bytes, n = 2
When 1072 bytes < QJ71MT91 transmission message size ≤ 1608
bytes, n = 3
(3)
When a communication error occurs due to noise, etc., change the setting to
increase the retry count.
The retry count is determined by the following expression.
(In the case of the default value, 3 = (60 / 20))
• Retry count = TCP ULP timer value / TCP resend timer value
MELSEC-Q
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