Asset Tracker V2 settings for PSM

[JackW]

What is the reason for the default 320 hour setting for periodic Tau timer?  This seems like an awfully long time, and we're wondering if this is simply a placeholder, or if there is logical reason behding this setting.

[Øyvind]

Hello, 

What is the reason for the default 320 hour setting for periodic Tau timer?

I guess it depends on the use case, but in this case I guess they set it to as long as possible i.e. Value is incremented in multiples of 320 h as per +CPSMS Power Saving Mode AT documentation. The PSM is negotiated with the network, and often given a ball park value of what was requested. 

You can change this value in nrf\applications\asset_tracker_v2\prj.conf by editing CONFIG_LTE_PSM_REQ_RPTAU="11000001"

Kind regards,
Øyvind

[JackW]

Yeah, that's what I thought.  Thanks.

[Øyvind]

You're welcome!