Modbus TCP <-> MQTT Gateway ?

[Noschvie]

Hello

does Tasmota support a Modbus TCP <-> MQTT connection? The ModBusSend command (from console or MQTT) shall be routed to the Modbus TCP connection and the Modbus response shall be published by MQTT.
This gateway functionality will be used with an ESP32 and MQTT TLS.

Thanks

[pkkrusty]

Not too hard to implement via scripting. I've done something similar with Fronius and Huawei inverters.

[Noschvie]

Modbus TCP is supported by scripting? Maybe you have an example?

[Noschvie]

Found this SMA Solar Inverter (TCP MODBus)

[pkkrusty]

Fronius example:

>D 48
SB=8192
IP=192.168.3.15
>B
=>sensor53 r
>M 2
+1,[192.168.3.38],m,0,502,bouch,1,10,r01039C870015
1,=so3,128
1,01032aUUuu@i0:1,AC Current,A,AC_Current,0
1,01032ax2UUuu@i0:1,Phase 1 Current,A,Phase_1_Current,0
1,01032ax4UUuu@i0:1,Phase 2 Current,A,Phase_2_Current,0
1,01032ax6UUuu@i0:1,Phase 3 Current,A,Phase_3_Current,0
1,01032ax8SSss@i0:1,Curr Scale Fctr,SF,Curr_SF,0
1,01032ax16UUuu@i0:1,Phase 1 Voltage,A,Phase_1_Voltage,0
1,01032ax18UUuu@i0:1,Phase 2 Voltage,A,Phase_2_Voltage,0
1,01032ax20UUuu@i0:1,Phase 3 Voltage,A,Phase_3_Voltage,0
1,01032ax22SSss@i0:1,Vltg Scale Fctr,SF,Vltg_SF,0
1,01032ax24UUuu@i0:1,Output Power,W,Output_Power,0
1,01032ax26SSss@i0:1,Pwr Scale Fctr,SF,Pwr_SF,0
1,01032ax28UUuu@i0:1,Frequency,Hz,Frequency,0
1,01032ax30SSss@i0:1,Freq Scale Fctr,SF,Freq_SF,0
1,01032ax36UUuu@i0:1,Temperature,C,Temperature,0
1,01032ax38SSss@i0:1,Temp Scale Fctr,SF,Temp_SF,0
+2,[192.168.3.23],m,0,502,mrcyshp,1,10,r01039C870015
2,=so3,128
2,01032aUUuu@i0:1,AC Current,A,AC_Current,0
2,01032ax2UUuu@i0:1,Phase 1 Current,A,Phase_1_Current,0
2,01032ax4UUuu@i0:1,Phase 2 Current,A,Phase_2_Current,0
2,01032ax6UUuu@i0:1,Phase 3 Current,A,Phase_3_Current,0
2,01032ax8SSss@i0:1,Curr Scale Fctr,SF,Curr_SF,0
2,01032ax16UUuu@i0:1,Phase 1 Voltage,A,Phase_1_Voltage,0
2,01032ax18UUuu@i0:1,Phase 2 Voltage,A,Phase_2_Voltage,0
2,01032ax20UUuu@i0:1,Phase 3 Voltage,A,Phase_3_Voltage,0
2,01032ax22SSss@i0:1,Vltg Scale Fctr,SF,Vltg_SF,0
2,01032ax24UUuu@i0:1,Output Power,W,Output_Power,0
2,01032ax26SSss@i0:1,Pwr Scale Fctr,SF,Pwr_SF,0
2,01032ax28UUuu@i0:1,Frequency,Hz,Frequency,0
2,01032ax30SSss@i0:1,Freq Scale Fctr,SF,Freq_SF,0
2,01032ax36UUuu@i0:1,Temperature,C,Temperature,0
2,01032ax38SSss@i0:1,Temp Scale Fctr,SF,Temp_SF,0
#

[Noschvie]

Where can I find the documentation about that? Thanks.

[pkkrusty]

On the smart meter page, which you already found. What specifics are you looking for? How to structure the meter definition?