3onedata NP Series User Manual page 24

Interface Element
Queue access
Response time
Frame break
Apply to all Port
When the maximum number of connections is greater than 1, set the parameters to be

consistent when multiple hosts are connected to the same serial port, otherwise it will
cause communication error.
The communication parameters of the real serial port will automatically change

according to the communication parameters of the virtual serial port. You can view the
real-time communication parameters of the serial port through "COM parameter" option
Description
software VSP Management to access the serial server.
MCP: means to use MOXA's virtual serial port software

to access the serial server.
CCP: means to use Kang Hai's virtual serial port

software to access the serial server.
Enable or disable queue access mode. Options:
Enabled: Multiple hosts can send or receive data from

the serial port at the same time. The serial server
processes the communication data in the order of FIFO
(first in, first out), prioritizes requests from the first host,
and returns the response to the first host.
Disabled: Means that queue access mode is not

enabled.
Time interval that allows the serial server to respond to each
host's request, the communication between serial server and
host is deemed to be completed after schedule time, serial
server continues to deal with the next host request.
If the idle wait time after the serial and host communication is
completed is longer than the frame break setting time, the
serial port will consider the communication to be completed
and continue processing the command from the next host.
This approach is very effective in reducing latency and
improving product performance.
Check the "Apply to all port" check box to apply the current
settings to all serial ports.
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Copyright © 3onedata Co., Ltd.
NP Series Serial Server User Manual
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