CN2600 Series Configuring Serial Port Operation Modes
If it is necessary to send a series of characters in the same packet, the serial device will need to send that series
of characters within the specified force transmit time, and the total length of data must be less than or equal
to the CN2600’s internal buffer size (1 KB per port).
UDP Mode
Destination address 1 through 4 (default=None): In UDP mode, you may specify up to 4 ranges of IP
addresses for the serial port to connect to. At least one destination range must be provided.
ATTENTION
The maximum selectable
IP address range is 64 addresses. However, when using multi-
unicast, you may enter
IP addresses of the form xxx.xxx.xxx.255 in the Begin field. For example, enter 192.127.168.255 to allow the
CN2600 to broadcast UDP packets to all hosts with IP addresses
between 192.127.168.1 and
Local listen port (default=4001): This is the UDP port that the CN2600 listens to and that other devices must
use to contact the CN2600. To avoid conflicts with well known UDP ports, the default is set to 4001.
Packet length (default=0): The Packet length setting refers to the maximum amount of data that is allowed
to accumulate in the serial port buffer before sending. At the default of 0 for packet length, no maximum
amount is specified and data in the buffer will be sent as specified by the delimiter settings or when the buffer
is full. When a packet length between 1 and 1024 bytes is specified, data in the buffer will be sent as soon it
reaches the specified length.
Delimiter 1 and Delimiter 2 (default=None): When Delimiter 1 is enabled, the serial port will clear the buffer
and send the data to the Ethernet port when a specific character, entered in hex format, is received. A second
delimiter character may be enabled and specified in the Delimiter 2 field, so that both characters act as the
delimiter to indicate when data should be sent.
ATTENTION
In order to enable a delimiter, packet length must be set to 0. Delimiter 2 should only be enabled in conjunction
with Delimiter 1 and
never on its own; otherwise there may be data errors. Even when a delimiter is enabled,
the CN2600 will still pack and send the data when the amount of data exceeds 1 KB.
Delimiter process (default=Do Nothing): The Delimiter process field determines how the data is handled
when a delimiter is received. Delimiter 1 must be enabled for this field to have effect. If Delimiters 1 and 2 are
both enabled, both characters must be received for the delimiter process to take place.
• Do Nothing: Data in the buffer will be transmitted when the delimiter is received.
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