ATCI command returns.... 0x2C?

XBee & XBee Gateway XBee - Cellular
1

Xbee 3 Cell modem – can post details if needed / relevant – latest firmware (well let me just post details here):

Modem Info / Name : Digi XBee3 Cellular LTE-M [B08]
Modem Version: L0.0.00.00.05.11,A.02.16
XBEE Hardware – Device Type: 4B – Revision: 4D
XBEE Firmware Version (brief): 1141A
XBEE Firmware Version (full):
FW ver 1141A Prod
Bootloader: 181
Build: SeCCID: 8912230102152913079

Anyway, I’ve got socket timeout set to 0 (ATTM0, confirmed with read-back) and periodically things get weird.

I query status with ATCI and I get a response of 0x2C which doesn’t seem to be documented in the table (user guide rev 90002258, page 229 I think)

IP set to 1 (normal TCP/IP, not TLS connection)

Can someone help me understand what I’m missing? I’m 100% sure the reply to ATCI is 0x2C (after sending on the socket fails) , the logical analyzer trace is totally fine.

Thanks in advance.

2

It means that the socket was closed due to inactivity.

3

Thank you! That would make sense, although it seems the documentation is out of date.

Appreciate the speedy response.