Jetter JVM-407B-HMI, Руководство пользователя

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Jetter AG 231
JVM-407B Programming
In the following situations, the task is not processed further after issuing the
command:
 Until all data have been received.
 Until an error has occurred.
In case of a UDP/IP connection, data are transmitted as datagram.
The controller processes this function in the following steps:
Step Description
1
The device JVM-407B waits until all data of a datagram have been
received, but no longer than the specified timeout.
2 If ... ... then ...
the timeout has elapsed or the
connection has been terminated,
the function is exited and an error
message is issued.
data have been received, they are copied to the receiving
buffer given along with the data (but
not exceeding the amount given
along with the data). Then, the
function continues with stage 3.
3 If ... ... then ...
... more data have been received
than could be copied into the
receiving buffer - that is, if the sent
datagram is too large,
... these data are discarded.
4 The sender's IP address and IP port are transferred into the variables
which are given along with the data.
5
The function is exited and the number of data, which have been copied
into the receiving buffer, is returned.
 Initializing the user-programmable IP interface (see page 222)

Establishing a connection (see page 223)
 Terminating a connection (see page 232)
 Sending data (see page 227)
Functioning principle
with a UDP/IP server
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