Technical data

52
W&T
3.8.5 Password protection
As already mentioned earlier, the Web-IO enables you in TCP
server mode to protect access through the application using a
password.
Before the actual connection to the Web-IO is opened, the
BinInfo structure defined here must be sent over a separate TCP
connection to the HTTP port (factory set to Port 80) on the Web-
IO.
For the reply the Web-IO also uses the structure BinInfo.
BinInfo BYTE[n]0 HTTPlogin n = 14 bytes + password
(PC <-> Web-IO WORD dummy always 0
BYTE type type of request
BYTE subtype additional information
LONG srcip source ip-address
WORD srcport source port
WORD destport destination port
The individual variables of the structure are filled in as follows:
HTTPLogin[n]
A byte field or string consisting of a login string and the Admi-
nistrator password.
GET /bin?LPW=<Administator Passwort>&