How to detect serial devece servers problem?


1. can not open the serial port of the server software

Ensure that the network’s normal working condition, can ping server
View job status to see if the port is occupied
If you are using realport See “COM PORT OVER TCP / IP” is configured correctly or
To the registry to delete the corresponding COM port remapping

2. how to configure the serial device servers

After Before using the terminal server, must be based on the user’s own operating environment and application requirements, the parameter configuration is complete before they even enter the user’s system put into use, these parameters include the management network parameters, each serial port operating mode, print services, and the device itself information and other content.
This device is factory IP address, netmask
Serial device server provides a serial port, TELNET, browser and special management tools co four ways for local or remote device management, device management needs to adapt to a variety of occasions.

3. why is the use of virtual serial port to transfer files serial device servers will lose data

At this time, mainly because of the end of the virtual serial port program data faster than when the program sends data to a remote virtual serial transmission equipment itself slowly, so the virtual program will lose data. It can be set in the virtual program “Analog baud rate.”

4. how to choose the serial device servers TCP / IP operating mode

Serial Device Servers TCP and UDP selection: try to choose TCP mode, especially after a large amount of internet data transmission, udp error and easy to lose.
Select the TCP client or TCP server,follow these guidelines:
Principle I: the party initiating the data transmission should be chosen for the client. For example, a data acquisition system, the terminal should be collected for the client. This is because when the case of TCP connection is disconnected, the client can transmit data when needed initiative to establish a connection. The TCP server, can only passively accept the connection, so that the data can not be sent out.
Principle II: IP or domain name server for the fixed one. For example, in a plurality of data collection terminals, and only one case of hub serial device servers, central server should be the server. This is because the central server’s IP or domain name is generally fixed, while the collection terminal IP is growing and changing. Central serial device servers IP difficult to remember all of the collection terminal, so it is difficult to initiate a connection; and collection terminal looking for a central server easier.

Serial Device Servers:TCP and UDP selection