2 smartmeter Kaifa309M / EVN - issue with read two meters

[martin1neu]

Hello!
I have the following problem:
I can't read both meters at the same time, but the script runs without problems:

21:32:04.861 SCR: nv=2, tv=1, vns=11, vmem=78, smem=8192, gmem=348, tmem=8629 21:32:04.863 SCR: performs "sensor53 r" 21:32:04.868 SML: crypto mode used for meter 1 21:32:04.870 SML: crypto mode used for meter 2 21:32:04.871 SML: uart used: 1 21:32:04.873 SML: uart used: 0 21:32:04.874 SNS: Hardware Serial 21:32:04.875 meters: 2 , decode lines: 18, memory used: 4121 bytes 21:32:04.880 MQT: smartmeter1/stat/RESULT = {"Time":"2025-03-11T21:32:04","SML":{"CMD":"restart"}}

here is the script:

`>D
res=0
con=0
ts=""

B
smlj=0
=>sensor53 r
R
smlj=0
M 2
+1,3,r,0,2400,z_haupt
1,=so3,512
1,=so4,
1,pm(1.8.0)@1000,Energie Bezug,kWh,Wirkenergie,3;Wirkenergie Bezug
1,pm(1.7.0)@1000,aktuelle Leistung,kW,Wirkleistung,3;Wirkleistung Bezug
1,pm(31.7.0)@100,Strom L1,A,StromL1,3;
1,pm(51.7.0)@100,Strom L2,A,StromL2,3;
1,pm(71.7.0)@100,Strom L3,A,StromL3,3;
1,pm(32.7.0)@10,Spannung L1,V,SpannungL1,2;
1,pm(52.7.0)@10,Spannung L2,V,SpannungL2,2;
1,pm(72.7.0)@10,Spannung L3,V,SpannungL3,2;
1,pm(13.7.0)@1000,Leistungsfaktor, ,Leistungsfaktor,2;
+2,16,r,0,2400,z_wp
2,=so3,512
2,=so4,
2,pm(1.8.0)@1000,Energie Bezug,kWh,Wirkenergie,3;Wirkenergie Bezug
2,pm(1.7.0)@1000,aktuelle Leistung,kW,Wirkleistung,3;Wirkleistung Bezug
2,pm(31.7.0)@100,Strom L1,A,StromL1,3;
2,pm(51.7.0)@100,Strom L2,A,StromL2,3;
2,pm(71.7.0)@100,Strom L3,A,StromL3,3;
2,pm(32.7.0)@10,Spannung L1,V,SpannungL1,2;
2,pm(52.7.0)@10,Spannung L2,V,SpannungL2,2;
2,pm(72.7.0)@10,Spannung L3,V,SpannungL3,2;
2,pm(13.7.0)@1000,Leistungsfaktor, ,Leistungsfaktor,2;

S
if upsecs>22
then
smlj|=1
endif
if upsecs%10==0
then
; nachschauen ob in Decoder Zeile 1 etwas angekommen ist (sml valid register abfragen)
if smlv[1]>0
then
print Daten angekommen
;alle flags löschen (geht indem man den index 0 setzt)
res=smlv[0]
con=1
ts=tstamp
else
print keine Daten in den letzen 10 Sekunden
con=0
endif
endif
J
,"Connection":{"connected":%0con%}
,"LastConnection":{"Timestamp":"%ts%"}
;,"Grid":{"connected":"my connection status"}`

if I enter only one of the two counters in the script, the output works fine.

dump with both meters:

`20:42:43.830 SML: decrypted block: 225 bytes //meter1
20:42:43.831 :>02 23 09 0c 07 e9 03 0b 02 14 2a 28 00 ff c4 00
20:42:43.832 :>09 06 01 00 01 08 00 ff 06 00 f9 2b c2 02 02 0f
20:42:43.833 :>00 16 1e 09 06 01 00 02 08 00 ff 06 00 00 00 00
20:42:43.834 :>02 02 0f 00 16 1e 09 06 01 00 01 07 00 ff 06 00
20:42:43.835 :>00 02 dc 02 02 0f 00 16 1b 09 06 01 00 02 07 00
20:42:43.836 :>ff 06 00 00 00 00 02 02 0f 00 16 1b 09 06 01 00
20:42:43.837 :>20 07 00 ff 12 08 f6 02 02 0f ff 16 23 09 06 01
20:42:43.838 :>00 34 07 00 ff 12 08 f7 02 02 0f ff 16 23 09 06
20:42:43.839 :>01 00 48 07 00 ff 12 08 f8 02 02 0f ff 16 23 09
20:42:43.840 :>06 01 00 1f 07 00 ff 12 00 38 02 02 0f fe 16 21
20:42:43.841 :>09 06 01 00 33 07 00 ff 12 00 83 02 02 0f fe 16
20:42:43.841 :>21 09 06 01 00 47 07 00 ff 12 00 a6 02 02 0f fe
20:42:43.842 :>16 21 09 06 01 00 0d 07 00 ff 12 03 e3 02 02 0f
20:42:43.845 :>fd 16 ff 09 0c 31 38 31 32 31 30 33 30 38 39 33
20:42:43.846 :>33
20:42:43.878 :>33

20:41:39.836 SML: decrypted block: 512 bytes //meter2
20:41:39.837 :>e6 e3 01 67 83 10 10 92 08 6d 91 9d 0d ab a1 6b
20:41:39.838 :>f4 dc cb f1 29 8c 3b 5d ab 94 8a 8a 5b 3d ef cb
20:41:39.838 :>37 64 4f 89 94 15 08 4c 23 c8 7a 2c 5b 3b f2 83
20:41:39.839 :>d9 a7 3e 5e e5 2c c7 a2 0b c8 a7 ba 98 29 ba 0d
20:41:39.840 :>0d a7 51 16 c4 ea fb c1 13 07 c1 e5 83 73 25 b3
20:41:39.840 :>e6 62 62 4f 29 bf f8 d9 bf fd ec 58 6e 6e 62 0b
20:41:39.842 :>45 ad 9d 38 29 fb 16 16 d9 e0 52 67 80 7a 3b 83
20:41:39.843 :>d3 16 68 68 01 67 ab d3 c2 04 61 15 07 52 ea 16
20:41:39.844 :>32 4a 86 16 0d 16 01 67 a4 6b ce 45 20 3d 23 3b
20:41:39.845 :>16 68 68 01 67 08 46 9d 40 f8 20 01 16 58 e5 0b
20:41:39.845 :>49 7f 0b 0e 08 f7 6e d9 d9 0b 3b e5 d5 a7 d5 e5
20:41:39.846 :>08 98 68 a2 16 fe 70 c1 bf 7a d6 9d 7a cd 19 b3
20:41:39.847 :>91 5d bc 51 e5 13 10 a7 f7 45 a4 0e 79 2f 34 23
20:41:39.847 :>76 b6 1f 1c ae f7 c4 3d 9e 6d 52 67 04 4a 67 ef
20:41:39.848 :>40 d3 2f e9 c1 ea 8a 0b 45 5e b3 57 2c 43 1c a7
20:41:39.849 :>da b3 0b fd 38 fd 67 e6 68 f7 89 85 19 02 e3 f4
20:41:39.849 :>9e 6d 20 4c 33 2c 41 2c 53 74 72 6f 6d 4c 33 2c
20:41:39.850 :>33 3b 7c 31 2c 70 6d 28 33 32 2e 37 2e 30 29 40
20:41:39.851 :>31 30 2c 53 70 61 6e 6e 75 6e 67 20 4c 31 2c 56
20:41:39.851 :>2c 53 70 61 6e 6e 75 6e 67 4c 31 2c 32 3b 7c 31
20:41:39.852 :>2c 70 6d 28 35 32 2e 37 2e 30 29 40 31 30 2c 53
20:41:39.854 :>70 61 6e 6e 75 6e 67 20 4c 32 2c 56 2c 53 70 61
20:41:39.855 :>6e 6e 75 6e 67 4c 32 2c 32 3b 7c 31 2c 70 6d 28
20:41:39.858 :>37 32 2e 37 2e 30 29 40 31 30 2c 53 70 61 6e 6e
20:41:39.859 :>75 6e 67 20 4c 33 2c 56 2c 53 70 61 6e 6e 75 6e
20:41:39.859 :>67 4c 33 2c 32 3b 7c 31 2c 70 6d 28 31 33 2e 37
20:41:39.860 :>2e 30 29 40 31 30 30 30 2c 4c 65 69 73 74 75 6e
20:41:39.861 :>67 73 66 61 6b 74 6f 72 2c 20 2c 4c 65 69 73 74
20:41:39.862 :>75 6e 67 73 66 61 6b 74 6f 72 2c 32 3b 7c 32 2c
20:41:39.863 :>3d 73 6f 33 2c 35 31 32 7c 32 2c 3d 73 6f 34 2c
20:41:39.864 :>41 44 33 45 33 44 35 42 44 34 44 37 37 31 32 34
20:41:39.865 :>35 35 35 34 36 44 34 43 43 46 42 30 42 45 46 31`

output if I only use the 2nd smartmeter :

21:03:26.155 SML: decrypted block: 225 bytes //WP wenn nur wp eingestellt 21:03:26.156 :>02 23 09 0c 07 e9 03 0b 02 15 03 14 00 ff c4 00 21:03:26.157 :>09 06 01 00 01 08 00 ff 06 00 3c db 93 02 02 0f 21:03:26.158 :>00 16 1e 09 06 01 00 02 08 00 ff 06 00 00 00 00 21:03:26.159 :>02 02 0f 00 16 1e 09 06 01 00 01 07 00 ff 06 00 21:03:26.159 :>00 00 00 02 02 0f 00 16 1b 09 06 01 00 02 07 00 21:03:26.160 :>ff 06 00 00 00 00 02 02 0f 00 16 1b 09 06 01 00 21:03:26.160 :>20 07 00 ff 12 08 ee 02 02 0f ff 16 23 09 06 01 21:03:26.161 :>00 34 07 00 ff 12 08 e8 02 02 0f ff 16 23 09 06 21:03:26.162 :>01 00 48 07 00 ff 12 08 ee 02 02 0f ff 16 23 09 21:03:26.163 :>06 01 00 1f 07 00 ff 12 00 00 02 02 0f fe 16 21 21:03:26.163 :>09 06 01 00 33 07 00 ff 12 00 00 02 02 0f fe 16 21:03:26.164 :>21 09 06 01 00 47 07 00 ff 12 00 00 02 02 0f fe 21:03:26.165 :>16 21 09 06 01 00 0d 07 00 ff 12 03 e8 02 02 0f 21:03:26.165 :>fd 16 ff 09 0c 31 38 31 32 31 30 33 30 38 39 32 21:03:26.166 :>38 21:03:26.203 :>38

Does anyone know this problem and can possibly help me?

Thanks you!

regards martin

[martin1neu]

Hello!

Sorry, i forgot:
self compiled Tasmota v14.5.0 with sensors, script and webUI runs on a ESP32 S2
1x DS18B20 on GPIO 33
2x circuit on GPIO 3 & 16 like this (R1=330 becouse my output voltage from smartmeter is ~27V):

Thanks on michael for the circuit https://www.michaelreitbauer.at/sagemcom-t210-d-auslesen-smart-meter-evn/

[martin1neu]

Hello!

after a lot of trial and error I find the solution: increasing the dump buffer (e.g. 2,=so3,512,512)

[martin1neu]

Hello!

After I tried to read out high and low rates, what does not work, the original setting no longer works either - argh

[martin1neu]

After many hours search, trial & error now I have take a second ESP to read out the second smartmeter.

not smart, but it runs

[makertirol]

Hello Martin. I also have a Kaifa MA309M smart meter. I would like to read it with Tasmota. Currently, I'm using a separate Raspberry Pi, which also works; I get the data via MQTT. However, I'd like to give it away and do everything with Tasmota. I have an ESP32 and an M-Bus Slave Click from Microoe here. Unfortunately, I don't have a script for it. Can you please help me? THANKS