ICP CON I-7550E, Руководство пользователя, Страница: 21 / 102

I-7550E PROFIBUS/Ethernet Converter User Manual
(Version 1.00, June/2014)
PAGE: 21
Ethernet FIFO
I-7550E
is TCP/UDP Client/Server
TCP/UDP Server/Client
devices( Maximum 8)
Maximum 1460 Bytes
Figure 18 The I-7550E is as TCP/UDP server/client
When the I-7550E receives data from Ethernet device, the data will be put in
Ethernet FIFO buffer. In every Data exchange cycle, the I-7550E will move the
first exiting data from FIFO to PROFIBUS Input Data area as shown
Figure 19
and Figure 20. The first 20 Bytes are reserved for the I-7550E that stored the
information of the data from Ethernet device.
Ethernet FIFO
(Maximum)
64KBytes
TCP/UDP Client/Server
devices( Maximum 8)
Connection ID 1
Connection ID 2
Connection ID 3
ID 1
ID 1
ID 1
ID 1
ID 1
ID 2
ID 2
ID 2
ID 2
ID 3
ID 3
ID 3
P
R
O
F
IB
U
S
Input Data
(Max:240 Bytes)
Byte 0
Byte 239
.
.
.
.
.
.
.
.
.
ID 1
Circular
Byte 19
System
setting
module
Figure 19 Data flow of Ethernet (1)