Änderungen vorbehalten Stand 09.09.05
ipcas GmbH ipEther232 V11.01 Seite 79 von 150
6.12 Technical details for ipEther232.Modem
Great emphasis was placed on compatability during device design.
Due to the Ethernet, there are, however, some minor restrictions.
• Data is not transmitted in bytes to the network, but Ethernet blocks are
formed. This might result in minor delays.
• The blocking function does not directly affect the application, but might
help to reduce the network load.
• Some fine-tuning might be necessary for time critical applications as well.
This involves the two timeout parameters ("Total Read Timeout",
"Character Distance")
Block formation for serial data before transmission into the Ethernet
After the first byte arrives, "Total Read Time" starts. After the time expires, all
characters received so far are relayed to the Ethernet. The default value is 50
ms.
"Character Distance" is the maximum distance between two received characters.
If this is exceeded, all characters received so far are transmitted to the Ethernet.
The default value is 5 ms.
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