[vz-users] configuration to read MT681 / vzlogger webpage shows different values than measured

[Maik Weidemann]

Hello Tilman,

all values under the identifier 1-0:1.8.x or 1-0:2.8.x are counter, so
you must chose the type "Zählerstände" for this channels .

Best regards
Maik


Am 15.04.21 um 12:13 schrieb Tilman Glötzner:
> Dear all
>
> We have recently installed a solar panels, a battery (LG RESU-10) and
> a inverter (SolarEdge SE-7rws). And a new bidirectional energy meter
> was installed by the electricity provider, i.e. a MT681-D4A52-K0p. I
> am reading it using an USB-Reader-Writer-Head (USB IR Lesekopf EHZ
> Lese-Schreib-Kopf Volkszähler Hichi)  bought at ebay. The meter is
> providing absolute values in Wh.
>
> 1) The values transferred to the  logger and  web page seem to be
> inconsistent (See also screen shot attached). I am suspecting a
> configuration issue. Can you kindly advise?
>
> Here the log from vzlogger:
>
> [Apr 15 08:18:07][mtr0] Got 6 new readings from meter:
> [Apr 15 08:18:07][mtr0] Reading:
> id=1-0:1.8.0*255/ObisIdentifier:1-0:1.8.0*255 value=33000.00
> ts=1618471087033
> [Apr 15 08:18:07][mtr0] Reading:
> id=1-0:1.8.1*255/ObisIdentifier:1-0:1.8.1*255 value=33000.00
> ts=1618471087033
> [Apr 15 08:18:07][mtr0] Reading:
> id=1-0:1.8.2*255/ObisIdentifier:1-0:1.8.2*255 value=0.00 ts=1618471087033
> [Apr 15 08:18:07][mtr0] Reading:
> id=1-0:2.8.0*255/ObisIdentifier:1-0:2.8.0*255 value=168000.00
> ts=1618471087033
> [Apr 15 08:18:07][mtr0] Reading:
> id=1-0:2.8.1*255/ObisIdentifier:1-0:2.8.1*255 value=168000.00
> ts=1618471087033
> [Apr 15 08:18:07][mtr0] Reading:
> id=1-0:2.8.2*255/ObisIdentifier:1-0:2.8.2*255 value=0.00 ts=1618471087033
>
> And here the config of vzlogger
>
> {
> "retry" : 3,
> "daemon": true,
> "verbosity" : 15,
> "log" : "/var/log/vzlogger.log",
>
> "local" : {
>         "enabled" : false,
>         "port" : 8080,
>         "index" : true,
>         "timeout" : 30,
>         "buffer" : 600
> },
>
> "meters" : [
>         {
>         "enabled" : true,
>         "device" : "/dev/ttyUSB0",
>         "protocol" : "sml",
>         "parity" : "8N1",
>         "baudrate" : 9600,
>         "aggtime" : -1,
>         "aggfixedinterval" : true,
>         "channels": [{
>             "uuid" : "xx",
>             "middleware" : "http://localhost/middleware.php",
>             "identifier" : "1-0:2.8.0", /* energy provided to grid */
>             "aggmode" : "MAX"
>             }, {
>             "uuid" : "xx",
>             "middleware" : "http://localhost/middleware.php",
>             "identifier" : "1-0:1.8.0", /* energy taken from grid */
>             "aggmode" : "MAX"
>             }, {
>             "uuid" : "xx",
>             "middleware" : "http://localhost/middleware.php",
>             "identifier" : "1-0:2.8.0", /* energy provided to grid */
>             "aggmode" : "MAX"
>             }, {
>             "uuid" : "xx",
>             "middleware" : "http://localhost/middleware.php",
>             "identifier" : "1-0:1.8.0", /* energy taken from grid */
>             "aggmode" : "MAX"
>             }]
>         }
>     ]
> }
>
> 2) Would it possible to also log the data from the SolarEdge inverter?
> The Solar Edge data via Ethernet sending this to a portal. In
> addition, it can also provide data via RS485 in my understanding.
>
> Thanks
>
> Tilman
>
>