Planet ICS-11 Series, Руководство пользователя

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User’s Manual of ICS-11x Serial Device Server Series
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4.5.2.8 Virtual COM mode
VCOM mode functionality provides a virtual-local COM port for Windows systems. The VCOM driver should be installed on the
PC through the VCOM Administration Utility. The driver establishes a TCP connection to the connected serial device by
mapping the local serial port to the IP port of the device port. VCOM mode also supports up to 256 mirroring ports at the same
time, but must be in accordance with the computer resources. The Virtual COM mode topology in Figure 4-5-26 appears.
Figure 4-5-26: Virtual COM Mode Topology
The Virtual COM mode screenshot in Figure 4-5-27 appears.
Figure 4-5-27: Virtual COM Mode Screenshot
Object Description
•
TCP Keep-alive
Interval
TCP keep alive interval shows how many seconds the unit waits during an inactive
connection before checking its status. If the unit does not receive a response, it will drop
that connection. The default is 0 minute.
•
Max connection
This parameter set the TCP port number on which it will listen for the connection and set
the maximum (up to two) acceptable number of connections. The range of value is from
1 to 4. The default is 1 .
•
Frame Length This parameter can be used to control the data packet. When the device port is in the
buffer until the specified data is accumulated, the data will be packed and transmitted by
the network. This parameter is 0 to indicate that the data will not be packed until the
buffer is full. The range of value is from 0 to 1024. The default is 0.
•
Separator If the Separator is enabled, the serial receive character port will be discarded until the
start separator is detected on the serial port. When the end separator is received, the
buffered characters, including the start and end separators, are sent to the network.
The range of value is from 0 to FF. The default is disable.
•
Separator Process Separators are ASCII characters specified by the user when configuring the serial serve.
This parameter describes how to control characters received on a serial port are sent
across the network. The default is Do nothing.