User:Ctag/Landis+Gyr Focus AXRe-SD

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ExecSum

FCC ID: TEB-HUNTSU864, GRIDSTREAM RF
Type: FOCUS AXRe-SD, FORM 2S CL200

My local utility company installed one of these doohickies on the house, and now I want to get realtime data from it after reading this article.

Device Info

The smart meter in question: Landis+Gyr FOCUS AXRe-SD FORM 2S CL200

Here is the official landing page for this family of products: https://www.landisgyr.com/product/focus-axe-axre-rxre-platform/

From this page I gather:

  • The base product is called FOCUS AX. The AXe is a product refresh with better specs.
    • Still no lead on the 'R' or '-SD' portions of AXRe-SD. I suspect 'R' is for reactive, as in it can meter reactive loads. Or it means Remote disconnect.
  • Capable of remote disconnect.
    • So as a consumer, I have an interest in these devices both giving me the data I want, but not being imminently pwnable.
  • Built-in tamper detection
  • OTA firmware updates (Cell? Mesh?)
  • Some models have an optical port? IR?
  • Two variations: Modular and Integrated.
    • Modular: with or without AMI comms (AMI is Advanced Metering Infrastructure, but I'm not sure if this means ZigBee, 802.15.4, or something else?)
    • Integrated: With radio built-in (I assume radio != AMI comms?)

Hash sent this link in discord, showing that the 'e' variants should have increased microcontroller specs: https://documents.dps.ny.gov/public/Common/ViewDoc.aspx?DocRefId=%7BBE3EBED1-4973-440D-A2BD-A28ED46F9FC1%7D

Packet Captures

0x55 Captured packets from Meter 40DA952B, compared with reference
Pkt 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
Not part of CRC calc Data Packet Trailing 6 Bytes
Start of

Frame

Type SubType Length Unknown Unknown WAN Address Counter Uptime Unknown LAN Address Unknown Unknown Timing

(0.01 increments)

Unknown Checksum Trailing
Examples
1 00FF 2A 55 0023 30 FFFFFFFFFFFF FE5021D00500 7C 0003FB20 A403 5021D005 0100 072001 1E56 7E00 9032 04
2 00FF 2A 55 0023 30 FFFFFFFFFFFF FE5021D00500 AE 0003FB9E A403 5021D005 0100 072001 0DA8 7E00 83E8 04
3 00FF 2A 55 0023 30 FFFFFFFFFFFF FE5021D00500 B8 0003FBC1 A403 5021D005 0100 072001 1B54 7E00 2924 04
HVAC Running
6 00FF 2A 55 0023 30 FFFFFFFFFFFF FE40DA952B00 7E 006D627B A40B 40DA952B 0100 161505 147E 7E00 F2B5 XX
HVAC Off
7 00FF 2A 55 0023 30 FFFFFFFFFFFF FE40DA952B00 3A 006D6381 A40B 40DA952B 0100 161505 052E 7E00 0A80 XX
Someone else's meter?
8 00FF 2A 55 0023 30 FFFFFFFFFFFF FE40DA235100 00 006D65A4 A40B 40DA2351 0100 161505 0B32 7E00 3FB7 XX