Unable to read already set configuration of eDRX mode using AT Command

RE: Unable to read already set configuration of eDRX mode using AT Command

Hakon — Tue, 07 Apr 2026 11:55:10 GMT

Try increasing the eDRX interval, and also make sure UART is not running (CONFIG_SERIAL=n).

RE: Unable to read already set configuration of eDRX mode using AT Command

AR Jadhav — Mon, 30 Mar 2026 12:27:14 GMT

Hello Nordic team,

I have enabled eDRX on my nRF9160 modem device, and the network has successfully negotiated the eDRX parameters. However, I am not observing any noticeable difference in power consumption after entering eDRX mode.
The measured current remains around 110 µA:

In normal mode and Even after eDRX is enabled

Details:

eDRX command used:
AT+CEDRXS=1,4,"0001"

Network response:
+CEDRXS: 4,"0001","001","0001"
OK

Note:Energy harvesting circuit and battery are both connected.

Is entering PSM mandatory to see a current drop? currently we are using only edrx mode

RE: Unable to read already set configuration of eDRX mode using AT Command

AR Jadhav — Wed, 01 Oct 2025 12:59:53 GMT

Okay Thanks a lot. Maybe we can test at our end.

RE: Unable to read already set configuration of eDRX mode using AT Command

Hakon — Thu, 25 Sep 2025 08:32:19 GMT

[quote user="AR Jadhav"]Can you please let us know about the power consumption when eDRX mode is activated.[/quote]

The eDRX current draw should be around 132 µA.

RE: Unable to read already set configuration of eDRX mode using AT Command

AR Jadhav — Thu, 25 Sep 2025 06:36:23 GMT

Hi Hakon,

Thanks for your reply.

Below is the attached snap which shows modem power consumption spikes in eDRX mode. Also, we get the successful response as OK and values for the following AT Commands.
"AT+CEDRXS?"

"AT+CEDRXRDP"

Meaning. I am able to set the eDRX mode, but I cannot see the actual power consumption happening with and without eDRX mode.
Following are the current consumption values:

1. Without eDRX mode: 19.7 mA

2. With eDRX mode: ~19 mA

Can you please let us know about the power consumption when eDRX mode is activated.

Thanks,

Akshay

RE: Unable to read already set configuration of eDRX mode using AT Command

Hakon — Fri, 19 Sep 2025 09:17:34 GMT

Hello,

have you confirmed that the network will allow the device to enter eDRX? Also, in that regard a modem trace should show what is actually happening in the network.