Meter reading problem in erp300

By Darvin Varghese, 20 April, 2024
Forums
DLMSDirector

hi, I have connected erp300 L&T dlms meter via serial com....But I got only manufacture's data and clock data only....I didn't got any data about voltage, current, kwh reading.etc.....i hope you will reply soon..screenshot is attached below...

Kurumi

1 year ago

Hi,
You have connected without the authentication (public client) and you can see only those values. Change the authentication level, set the password, and select "File" and "Refresh". Now you can see more objects.

BR,
Mikko

Darvin Varghese

1 year ago

Hi,
The authentication is set at Low and password is set but no response....can you explain how to set authentication level and password to access meter data

Darvin Varghese

1 year ago

Hi,
Thank you sir it's working fine..I got reading data......How to get these data through Arduino?is there any libraries?

Darvin Varghese

1 year ago

Hi,

I just want to read only kwh value to Arduino from the meter.......what are the steps to do that....l have seen client library but there is lot of things.....

Kurumi

1 year ago

Hi,

Before you can read anything, you need to establish the connection to the meter.

Check first that you can establish the connection for the meter. You need to change the client address, the authentication level and set the correct password.
Then read your register in com_readAllObjects. Something like this:

char* data = NULL;
gxRegister r;
cosem_init(BASE(r), DLMS_OBJECT_TYPE_REGISTER, "YOUR_OBIS_CODE");
com_read(BASE(r), 2);
obj_toString(BASE(r), &data);
GXTRACE(GET_STR_FROM_EEPROM("Register value"), data);
obj_clear(BASE(r));
free(data);

BR,
Mikko