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Configuration
3.2.2 Setting Each Timer Value And Timeout Value
For setting each timer value and timeout value, please refer to the description below.
Timer setting conditions in FPWIN GR7
Timer setting conditions in FPWIN GR7 are as follows.
• TCP closed timer value ≥ TCP ULP timeout value ≥ TCP re-transmission timer value
AND
• TCP zero window timer value ≥ IP assembly timer value
Setting the TCP ULP timeout value (packet existence duration) and
the TCP re-transmission timer value
When TCP/IP communication is being carried out, data is automatically re-sent the specified
number of times, as shown in the illustration below.
E.g. When TCP ULP: 30 seconds, TCP re-transmission timer value: 10 seconds
KEY POINTS
•
Communication errors occurring in the unit can be minimized by increasing
the number of re-transmission times. Corrective measures should also be
taken on the computer side, such as increasing the number of times that
data is sent.
•
The max. number of times data is sent is 12.
If UDP/IP is being used, re-sending is not carried out.
•
3-4
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