Staubli CS8C, Instruction Manual

Page: 103 / 248

CS8C © Stäubli 2009 –
D28070504A
103 / 248
Chapter 5 - Integration
5.8.4. ETHERNET SOCKETS (TCP)
The
CS8C
controller can be configured to communicate via the Ethernet using sockets (TCP). The
CS8C
controller accepts up to
40
sockets simultaneously, in client mode or server mode. The Ethernet sockets are
configured via the "Control panel" application (Control panel > I/O / Socket).
UDP
sockets are not supported.
The parameters of a server socket are:
•
The connection port between
0
and
65535
.
•
The maximum number of simultaneous clients.
•
The time lapse prior to triggering of an error message (maximum time lapse reached in reading or for a
connection). A zero value suppresses the time lapse control.
•
The end of string character.
Details of the last two parameters are given in the
VAL3
reference manual (
SIO
type).
The parameters of a client socket are the same, with the extra element of the
IP
address of the server socket to
be reached. A "Test" menu can be used to test the connection with the server.
A server socket is activated ("opened") in the
CS8C
each time a
VAL3
program uses it, and deactivated ("closed")
when the last customer logs off. When the maximum number of clients has been reached for a server socket, other
clients attempting to log on are accepted but the communication is interrupted immediately by the server.
CAUTION:
The ports between 0 and
1000
are reserved.
CAUTION:
If no
VAL3
program has accessed the server sockets in the
CS8C
, they are not activated, and
all attempts by a customer to connect will remain fruitless. In particular, the "Test" menu used
on a
CS8C
controller to test a server socket on another
CS8C
controller produces an error
message if no
VAL3
application is running on that controller.