||The PG/PC that is to control signal recording is to have a wireless connection to the IWLAN/PB PN IO Link or be connected to the relevant access point with an Industrial Ethernet cable. Use the DOS command "telnet <IP address of the IWLAN PB Link PN IO>" to set up a connection from the PG/PC to the IWLAN/PB Link PN/IO.
Enter "inform" and then"signal" and you get to the "Record Menu" (the menu from which you can start/stop recording).
The following DOS commands are used to start/stop recording.
- "recstart <Int> [Num]" - Start recording
- "recstop" - Stop recording
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Fig. 01: Start/stop data recording
||When recording has finished, you have the option of downloading a text file via the DOS directory, which contains the most important measurements like signal % and signal to noise ratio RSSI. The FTP protocol is used for downloading. You use the following DOS commands for downloading:
- Set up connection to the FTP server: "ftp <IP address of the IWLAN/PB Link PN IO>"
- Enter "admin" for user and password
- Download text file: "get signal.txt"
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Fig. 02: Save recording data in text file "signal.txt"
||This text file can be used in the "csv" format to display the recording graphically in Excel.
The following figure shows an example of a saved text file.
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Fig. 03: Text file "signal.txt"
||You import the text file "signal.txt" into Excel via the menu Data -> Import external data -> Import data.
Below are possible tabular and graphical presentations in Excel of the text file "signal.txt" shown in Fig. 03.
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Fig. 04: Tabular presentation in Excel
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Fig. 05: Graphical presentation in Excel