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53
W&T
Subject to errors and modifications
Socket-Schnittstelle
IP-Header
Ethernet-Header
Ethernet-Nutzdaten
IO-Strukturen
UDP-/TCP-Nutzdaten
UDP-/TCP-Header
IP-Nutzdaten
DestPort
The client application enters here which port will be used for the
connection (e.g. 49153 for Binary 1 or 49154 for Binary 2).
The Web-IO always returns 0
The connection through which the BinInfo structure was
transmitted is automatically closed by the Web-IO.
3.7.6 BINARY - The IO structures
To enable simple communication between the user program on
the computer and the Web-IO, there are a limited number of
structures (variable fields) which define the format and content
of the data exchanged between the user program and the Web-
IO.
IO structures are provided for the following functions:
.
Reading the inputs
.
Setting the outputs
.
Parameterizing the cyclical and automatic messaging when
there is a status change
The user program uses the easy to use socket4 interface
( W i n d o w s : W i n S o c k , U N I X , L i n u x : B e r k l e y
Sockets) for exchanging data in the form of these IO structures
with the Web-IO over the network via TCP/IP.
The IO structures do not depend on the network protocol used
(TCP or UDP).
Which of the two protocols are used, UDP or TCP, depends on
the type of application. Both protocols offer advantages and
Содержание 57661
Страница 1: ...W T Manual Web IO Analog In Out PoE Type 10 100BaseT 12 24V Model 57661 57662 Release 1 63 Jun 2010...
Страница 11: ...11 W T Subject to errors and modifications Jumper directly on the device Jumper at the remote end...
Страница 31: ...31 W T Subject to errors and modifications Configuring the voltage input and output Model 57662...
Страница 64: ...64 W T Then click on the Apply button to send the settings to the Web IO...
Страница 102: ...102 W T...
Страница 142: ...142 W T The Web IO displays this page in the Web browser as follows...