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Chapter 2 Specification of Communication port for CPU module

2 – 9

Number of retry times and Retry interval for Connection open

When TCP/IP-active is specified, the number of retry times and the retry interval for the connection open when failing

can be specified.

When there is no response to the packet including the SYN flag*

transmitted from the EHV-CPU, the retry is

performed three times. And this process is repeated for the number of retry times. The internal between cycles which

consist of three retries is specified as the retry interval.

The following is an example in case where the number of retry times is set to 3 and the retry interval is set to 10

seconds.

*1: SYN flag is a connection open request flag.

EHV-CPU

SYN

1.5s

SYN

1.5s

10s

SYN

1.5s

10s

SYN

1.5s

10s

Fixed by the system

(Unchangeable by user)

Retry interval

First retry

cycle

Second retry

cycle

Third retry

cycle

Figure 2.7 Connection open retry sequence

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RTS WM300 Especificaciones Pagina 23