Will this work with a Kamstrup Multical 302

[messismore]

Hi,
I am aware that this is not an issue per se, but I looking for ways to read data from my heat meter and apparently it is equipped with a wireless M-Bus interface…
Does anyone have experience with this particular model?
Thanks

[ffcrg]

Hi,
based on the datasheet, the Kampstrup Multical 302 can be configured to send wM-Bus Data in T1 mode.
So you can use one of the wireless M-Bus sticks to receive the data.

[messismore]

Thank you for your reply,
what setting will I need to use ecpiww with? (Gas/Water/Electricity) The Multical is a heat/energy meter, so I am primarily interested in the current wattage.

[ffcrg]

Hi

first you should start the app with the commandline -i to show all details of the received messages. You should see the ones from your device.

What you need to change in the current code to save the readings of the heat meter to a CSV file:
A) the manufacturerID of the registered meters is currently always 0x18C4 (EnergyCam from FAST Forward) ; you have to add here the one from your device
B) you have to add the meter type heat = 0x04 to the code

[messismore]

This is my output for sudo./ecpiww -i

Connect to IMST on port /dev/ttyUSB0
open port (/dev/ttyUSB0) with 57600 baud
IMST iM871A Stick found
wM-BUS T2 Mode
00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16  PayloadLength 78 Timestamp=0x02017542 RSSI=-24 ID=67309853 
Meter  2C2D 67309853 30 0C 0 (exp) 0 
17 18 

Do I understand correctly that I need to change ManufacturerID and type when adding the meter to ecpiww?

List of active Meters (1 defined):
Meter#1 : Manufactor = whatever Kamstrup uses
Meter#1 : Ident      = 0x00000000
Meter#1 : Type       = 0x04
Meter#1 : Version    = 0x01
Meter#1 : Key        = ?

Thank you so much for your help, very appreciated!

Edit: Apparently Kamstrup uses 0x2c2d.

[messismore]

Okay, I hope these changes will do the trick. I will test it as soon as I have my device's AES key…