Practicing with Smart Meter Interface

[ScanLabs]

Hello folk,

I'm trying to build a MODBUS Smart Meter Interface for a JK-BMS .
My basic script with which I'm practicing looks like

D
v1=0
;TelePeriod time
tper=20

B
smlj=1
=>sensor53 r d0

;Fill vars with content on teleperiod

T
v1=SMA#SOC

S
v1=v1+100
print SOC %0v1%

J
,"theSOC":%0v1%

;Webdisplay stuff

W
theSOC: %0v1%

M 1
+1,[192.168.2.234],m,0,502,SMA,0,3,01030064
1,010304UUuu@i0:1,SOC,%%,SOC,0

SOC is populated and Teleperiod is shown on console.
SOC on the >S is well printed ( readed SOC+100 as example )
.....
17:26:39.360 RSL: SENSOR = {"Time":"2025-05-20T17:26:39","SMA":{"SOC":33}}
17:26:39.366 SOC 133
....

A Berry Rule is triggered on Teleperiod -> final target is to parse the json
tasmota.add_rule("SMA#", def (SOC) queueit(SOC) end )
I need to do some computation on MODBUS parameters before to publish on SENSOR, that's why I added >S (for scripting ) and >J for publishing

>J
,"theSOC":%0v1%

My expectation is to find on SENSOR an additional Json entry under SMA such as {"theSOC":133}
But as reported , SENSOR is not populated with this .
Where I'm wrong?

On Main Tasmota webpage, Instead of showing all the raw MODBUS parameters I want to show only some computed params. On this purpose I added

>W
theSOC: %0v1%

My expectation is to see on welcome page an entry like "theSOC: 133
while on Main Menu webpage I see only "SMA SOC 33%" that is the one picked up by MODBUS

last, I need to retrieve about 30 parameters from the BMS,
every paramenter is shown on Main Tasmota WebPage.
There's a way to avoid showing my params on the webpage ?

Thanks for helping,
Paolo

[ScanLabs]

Partially found answer myself from: https://tasmota.github.io/docs/Scripting-Language/
Missing #define to anable the features

J -> #define USE_SCRIPT_JSON_EXPORT
M -> #define USE_SCRIPT_WEB_DISPLAY

I'm still missing how to hide from webpage the variable retrieved by Smart Meter Interface

eg:

M 1
+1,[192.168.2.234],m,0,502,SMA,0,3,01030064
1,010304UUuu@i0:1,SOC,%%,SOC,0

publishes on Main Web Page : SOC 33% ( if SOC is 33 )

Thanks,
Paolo