How to get a WiFi Received Signal Strength Indication from an IMx-8Plus or IMx-16Plus

Summary

This article provides information on how to request a WiFi signal strength indication (RSSI) from an IMx-8Plus or IMx-16Plus device using the Command function in @ptitude Observer.

Details

Prerequisites

Requires @ptitude Observer 12.2 or later and the IMx device must be configured to use WiFi for its network connection.

Procedure

From the IMx/MasCon devices dialog (On-line > IMx/MasCon devices) select the target IMx device and press the Command button to open the Command window. In the Command line entry field at the bottom of that window enter:

get wf/rssi

Then press the adjacent Send button:

The main Command result area should update with the outgoing command string and the response received.

Example result:

12-1-2021 15:09:23 > get wf/rssi
wf/rssi=-60

The response shown above is the received signal field strength in dBm. Being a negative value the closer the dBm value is to zero, the stronger the signal strength.

In the example response shown, -60 dBm would be considered a good or very good signal strength, if it were -50 dBm or higher it would be considered excellent and the lower limit of acceptability is likely in the region around -70 dBm.

Alternative method

Rather than using the @ptitude Observer client as described above, an alternative is to use the Online device configurator, software tool. In this case start the serial interface to the IMx device and use this time the following command text:

cmd get wf/rssi

Contacting SKF Technical Support Group

For further assistance please open a support case using the Technical Support group's self-help portal at www.skf.com/cm/tsg. Once your support case is submitted, a technician will contact you to begin working on your issue. For urgent issues we are available at these times by phone:

• Monday through Friday, 5:00 a.m. to 4 p.m. Pacific Time -
  Phone: [phone] within the US or [phone] outside the US.
• Monday through Friday, 8:00 a.m. to 4:00 p.m. Central European Time -
  Phone: [phone].
• Monday through Friday, 7:30 a.m. to 4:30 p.m. India Standard Time -
  Phone: [phone].