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      SIM7020G unresponsiveness
      Hardware • sim7020 hardware at commands • • MeneerJacco

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      M

      They are still running, so this seems to be the (temporary) solution.

    • M

      SIM7020E has trouble entering PSM
      Hardware • sim7020 psm nb-iot simcom • • MeneerJacco

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      M

      @MeneerJacco you might check this entry as well, which points to a small web page doing the calculation work reg. at+cpsms command.
      https://forum.iotcreators.com/topic/642/psm-calculation-tool-t3412-t3324-value-decoding?_=1622307153602

      Be aware, that entering the value via at+cpsms is only a request towards the network. The network decides if your values are committed. To check the network reply, use

      at+cereg=4

      and check the values via:

      at+cereg?

      You can paste the reply in the above mentioned web page as well to get the values ‘decoded’.
      My recommendation: set the active time (T3324) to a minimum and use the ‘RAI’ - release assistance indicator after sending data to shorten the RRC connected mode to a minimum. Then your device will enter PSM faster.
      BR,
      Markus

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