Advantech BB-USR604, Руководство пользователя

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BB-USR604
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Advanced Settings in Device Manager
To configure advanced settings, on the USB Isolated Serial Port Properties dialog, click
Advanced
.
The Advanced Settings dialog appears.
Figure 17: Advanced Settings
Configure the advanced settings as required (refer to the following sections for details). Click OK to store the settings.
COM PORT NUMBER
When installing the drivers the first available COM port number is assigned to the first COM port on the BB-
USR604 device.
If necessary, the default communications port number can be changed by selecting a new number in the COM Port
Number dropdown list.
USB TRANSFER SIZES
Receive and transmit message sizes between 64 bytes and 4096 bytes can be selected. The default value is 4096.
Select lower settings to correct performance problems at low baud rates. Select higher settings for faster
performance.
BM OPTIONS
The BM Options dropdown list provides a setting for the Latency Timer. The latency timer is a form of time-out
mechanism that counts from the last time data was sent from the BB-USR604 back to the PC. If the latency timer
expires, the BB-USR604 will send any data it has available to the PC. It then resets and begins counting again.