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Delta Electronics Network Device LCP-1250 Manuale Utente Pagina 30

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Ethernet
Ethernet
Ethernet
Virtual COM
The virtual COM mode corresponds the serial port of a
DVW to the COM port of a PC, providing users with direct
access from a PC to serial communication devices via
wired or wireless communication.
TCP Server
In a TCP/IP network, each serial port has one exclusive
set of IP address and TCP serial port number. When the
host requests connection, a DVW passively receives the
request for connection and conducts transmission of serial
device data via wired or wireless communication.
TCP Client
In a TCP/IP network, each serial port has one exclusive
set of IP address and TCP serial port number. When a
DVW receives the data of the serial devices connected,
it actively requests the host for connection and data
transmission via wired or wireless communication. The
connection is cut after the data transmission is completed.
UDP Mode
Serial devices can connect to hosts for continuous data
transmission via wired or wireless communication with
a DVW. The UDP mode enables better transmission
performance compared to the TCP mode, and it is
suitable for real-time information display systems, such as
electronic billboards. It is less applicable to highly critical
systems.
Introduction to Serial Device Servers
Pair Connection
Pair a DVW with a serial host and another with a serial device. The pairs can use the existing wired or wireless network for
communication. When the distance exceeds 100m, replace the network cable with RS-485 for a longer transmission distance
of up to 1,200m.
0
1
COM1
ERROR
RUN
POWER
DVP-12SA
IN
AH500 PLC
RS-232/422/485
Serial Device
Ethernet
RS-232/422/485
RS-232/422/485
AH500 PLC
1
2
RS-232/422/485
AH500 PLC
AH500 PLC
RS-232/422/485
Ethernet
AH500 PLC
RS-232/422/485
1
2
Industry
Ethernet Switches
IEEE 802.11 WLAN
Ethernet Gateways
COM6 = 192.168.1.200:2000
COM5 = 192.168.1.100:1000
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