Landis+gyr g350 IR readout

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yctn
Landis+gyr g350 IR readout

Im trying to do a readout on a landis+gyr g350. i have ab IR head which works just fine on my iskra MT171.

when i just send /?! i get =========================
/?!
as output

when i send: /?!\r\n. 2F 3F 21 0D 0A

i get this as output: /?!
. 2F 3F 21 0D 0A

here is my python script im using:

import time
import serial
import re

ser = serial.Serial(
port='/dev/ttyUSB0',
baudrate=300,
parity=serial.PARITY_EVEN,
stopbits=serial.STOPBITS_ONE,
bytesize=serial.SEVENBITS,
)

while 1:
ser.flushInput()
ser.write('/?!\r\n. 2F 3F 21 0D 0A')
time.sleep(15)
output=ser.read(ser.inWaiting())

print output

print '========================='
ser.flushInput()

kurumi
kurumi's picture
Hi,

Hi,

Your meters are using different protocols.
Iskraemeco MT-171 is using IEC 62053-21
Landis+Gyr G350 is using M-Bus.

BR,

Mikko

________________________________________
Mikko Kurunsaari
Gurux Ltd
Hermiankatu 6-8 H 33720 TAMPERE, FINLAND
Phone: +358 3 265 1244
Home page: http://www.gurux.org

yctn
Hello,

Hello,

Any idea if i can read out the meter by using M-bus?

kurumi
kurumi's picture
M-bus

Hi,

Find a software that supports it or make own app. M-Bus isn't a very complicated protocol.

BR,
Mikko

________________________________________
Mikko Kurunsaari
Gurux Ltd
Hermiankatu 6-8 H 33720 TAMPERE, FINLAND
Phone: +358 3 265 1244
Home page: http://www.gurux.org

yctn
hi, i found https://github

hi, i found https://github.com/rscada/libmbus and i tryed to scan with mbus-serial-scan for an address but it didnt find any address. so at this moment im not sure if i can communicate with the meter at all. any idea's?

kurumi
kurumi's picture
M-bus

Hi,

I'm sorry, but we have not communicated with M-bus devices for a long time and I just can't remember this anymore.

BR,

Mikko

________________________________________
Mikko Kurunsaari
Gurux Ltd
Hermiankatu 6-8 H 33720 TAMPERE, FINLAND
Phone: +358 3 265 1244
Home page: http://www.gurux.org

Rohit
Hi

Hi
I have l&t em101+ meter .
How reset value of kwh to 0.
Pls describe strat to end process.

kurumi
kurumi's picture
L&G em101

Hi,

Your meter is not DLMS meter and we don't know how to do this. You should ask this info from the meter vendor.

BR,

Mikko

________________________________________
Mikko Kurunsaari
Gurux Ltd
Hermiankatu 6-8 H 33720 TAMPERE, FINLAND
Phone: +358 3 265 1244
Home page: http://www.gurux.org