CN2600 Series Software Installation/Configuration
7. On the Basic Settings page, use the COM Number drop-down list to select a COM number to be assigned
to the CN2600 serial port that is being configured. Select the Auto Enumerating COM Number for
Selected Ports option to assign available COM numbers automatically in sequence to selected serial ports.
Note that ports that are “in use” will be labeled accordingly.
8. Enable Redundant COM, which enables the 2 LANs automatically, is the default. If Disable Redundant
COM is selected, Real COM mode will be used, and either LAN can be selected for mapping the IP address.
Before configuring the driver for “Redundant COM” mode, you must first configure the corresponding port of
the CN2600’s firmware for “Redundant COM” mode.
9. Click the Advanced Settings tab to modify Tx Mode, FIFO, and Flash Flush.
Tx Mode
Hi-Performance is the default for Tx mode. After the driver sends data to the CN2600, the driver immediately
issues a “Tx Empty” response to the program. Under Classical mode, the driver will not send the “Tx Empty”
response until after confirmation is received from the CN2600’s serial port. This causes lower throughput.
Classical mode is recommended if you want to ensure that all data is sent out before further processing.
FIFO
If FIFO is Disabled, the CN2600 will transmit one byte each time the Tx FIFO becomes empty, and an Rx
interrupt will be generated for each incoming byte. This will result in a faster response and lower throughput.
Network Timeout
You can use this option to prevent blocking if the target CN2600 is unavailable.
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