Cambium Networks cnReach N500, Руководство пользователя

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cnReach N500 User Guide System Configuration
phn-4673_003v000 (November 2018)
2-39
TCP Terminal Client
When set to TCP Terminal Client, activity on the Serial Port interface will initiate a TCP session to a
Host or Terminal Server specified by the Remote IP address and Remote Port number in the
configuration.
Data arriving on the Serial Port will be packetized and sent to the destination IP address and TCP port.
The session will end if the Network Idle Timeout is reached without any activity on the Serial Port
interface.
Serial Timeout Trigger is the timeout for when data is sent to the network after the start of serial data
(in non-message modes).
Serial Input Trigger defines the amount of data, in Bytes, that will be held in the buffer before being
packetized and sent over the network. For example, if set to 1024, the radio sends the message after
receiving 1024 characters. The default is 1024.
Message Mode should be used with Modbus, DNP3 or other message oriented protocol.
•
Message Mode should be used with Modbus or other message oriented Protocol. When set to
Message Mode, the radio waits for a pause in the Serial Data being received on the Serial Port from
the End Device, i.e. the radio waits for the End Device to finish communicating the message before
transmitting the message as a whole. If a pause is not received after 1024bytes, the radio just sends
out the 1024 bytes. If the message cannot be transmitted as a whole, the radio will break it up
between transmissions and the Master will reassemble upon demodulation.
• Message mode disables Serial Input trigger and Serial timeout trigger
• Example use of message mode:
– Modbus RTU to Modbus TCP
–
Serial DNP3 to Terminal TCP client