Timeouts - Siemens CP 243-1 Operating Instructions Manual

Timeouts

The values in the following tables represent times after which the the related actions must
have been triggered.
On Ethernet
Meaning
Maximum wait time after which a frame
must be completely
received via TCP/IP.
Maximum wait time after which a frame
must be completely
sent via TCP/IP.
Maximum wait time of the CP until a
request sent to the CPU by an external
client is replied to by the CPU.
Logout time when all channels are busy
and MW is not yet connected.
(So that MW can always establish a
connection)
Interval at which incoming connection
establishment requests are processed.
Wait time after an unsuccessful attempt
by a client to establish a connection
Wait time of a client for confirmation of
a request to establish a connection
Maximum time for a successful
BOOTP/DHCP request
Maximum wait time for confirmation of
sending the test e-mail
Idle time of an FTP connection. When
this time expires, the connection is
terminated by the FTP server if a new
FTP client wants to establish a
connection
Maximum wait time of the FTP server
for the establishment of a data
connection
Timeouts on Ethernet
CP 243-1
Operating Instructions, 03/2012, C79000-G8976-C244-02
Action if timeout occurs
Reject frame fragment. CP shuts down
the connection
Abort sending. CP shuts down the
connection
Reject action. CP waits for new
requests. Client receives no response
Oldest of the connected TCP/IP
servers that could not yet be assigned
via TSAP interrupts the connection and
waits for a new connection to be
established
Delay of the next connection
establishment
Attempt to establish a connection is
repeated
Client shuts down the connection and
connects again
Renewed attempt to obtain a valid
configuration either from the memory of
the S7-200 CPU or via a
BOOTP/DHCP server
The e-mail is not transferred, an error
message to this effect is returned.
Termination of existing FTP connection
and establishment of a new FTP
connection to the new FTP client
The FTP client not establish a data
connection.
Fixed set time in seconds
3
3
60
60
1
10
6
24 attempts at intervals of 2.5 seconds
= 60 seconds
30
60
90
B
129