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Com-Servers

How can Com-Servers be integrated in standard display systems e.g. those used in the areas of building services engineering or automation?

In order to remain independent of the wide range of standardized and vendor-specific interface protocols, state-of-the-art display systems use the OPC standard (OLE for Process Control) when

 

How would you tunnel the connection between two serial devices through the network?

By using two Com-Servers in Box-to-Box mode. The only prerequisite for this mode is a TCP/IP connection (e.g. also over the Internet) between the two local networks.

 

Which are the delays that must be taken into account in connection with serial protocols?

Many serial protocols (e.g. 3964R) work such that the sent data blocks are acknowledged by the respective receiver, such as with the characters ACK or NACK. The time for this acknowledgement

 

To what extent is the network additionally loaded by a serial connection make through a Com-Server?

To ensure that the network is not overloaded by an excessive packet rate, the Com-Server is equipped with the "network delay" system option, which acts as a protective function.

 

How can a non-modifiable serial program talk to serial devices in the network?

The COM Port Redirector available for all common Windows systems allows you to create virtual COM ports on a computer. These ports look to an application just like a local standard COM port
 

How can a serial end device be made accessible via the Internet using Com-Servers?

As regards the hardware, the Com-Server first makes the connected serial end device available in the local Ethernet LAN. Because TCP / IP is used, as a protocol TCP / IP also constitutes the basis of the
 
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