Nortek Signature Series Manual

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Nortek Signature Series Manual Manual pdf 10 page image

Integrator's Guide10© 2017 Nortek AScommand and data record formats for the interfaces are the same as for the serial port.Commands available in measurement mode should be preceded by the command BBPWAKEUP.This ensures that the BBP is ready to process the command when it is received (see Checkinginstrument state over Ethernet). In measurement mode, another BBPWAKEUP must be sent whenmore than 2 seconds has elapsed since the previous command.If uncertain of the active mode it is good practice to send BBPWAKEUP before sending GETSTATEor INQ.3.3.1 Telnet ConnectionThe telnet interface (TCP/IP port 9000) is used for user interaction with the instrument. Thisdedicated port can be used for entering commands and getting human readable responses(ASCII). The supported command set is available in the Commands section. The Windows telnetclient can be used to connect into the instrument using the command line telnet ip_address 9000.You will get prompted for a username (nortek) and password (hit Enter if password protectionhasn’t been enabled via the Web interface).Signature Username: nortekPassword:Nortek Signature Command InterfaceThe interface is very similar to the direct serial interface over RS232/RS422 but some additions aremade to simplify the interfacing. Most notable is the ability to send a to the Dopplerprocessor just by using Ctrl-C (ASCII 0x03). The internal application takes care of waking up theDoppler DSP and timing the delivery of the break string.The telnet server is not configured to echo characters, so users wishing to see and/or editcommands before sending them to the instrument should enable local echo and local lineediting. If those features are desired, a telnet client capable of supporting local echo and localline editing must be used (e.g. PuTTY).Port 9000 is dedicated for ASCII only communication whereas the ports described in the nextsection provide the complete set of data, including binary output of the measurements. A telnetclient shouldn ot be used to access these ports. Read more about this in the next section.To terminate the telnet connection, enter Ctrl-X (ASCII 0x18).