W&T Electronics 58210, Руководство пользователя, Страница: 35 / 63

35
W&T
Modem Operation
Subject to error and alteration
Replies for the dial-up command
• CONNECT
The network connection with the desired destination
s y s t e m w a s s u c c e s s f u l l y m a d e , a n d t h e s e r i a l
application connected therre accepted the call. If the dial-
up command was not terminated with a semicolon, the
LAN-Modem is now in data mode, i.e. all entries are sent
transparently to the communication partner
• NO CARRIER
T h e n e t w o r k c o n n e c t i o n t o t h e d e s i r e d
communication partner was able to be established,
but the serial application there did not pick up the
call. The time for which the LAN-Modem waits for the
counterpart to pick up the call is stored in Register S7
and is factory set to 50s.
• BUSY
No network connection to the desired communication
partner could be established. The cause of this may
b e a s t a t i o n t h a t i s a l r e a d y b u s y w i t h a n o t h e r
connection. In this case the attempt to establish a
connection is rejected. Another reason may be an
unreachable or incorrect IP address. For very slow
network routs to the destination system, the timeout
stored in Register S6 for the TCP connection set-up can
be set to a higher value. The factory setting is for 3s