Answer / murali

Try to get the MODBUS communication details,address &
parameters which are all can able to read from the ER300P
meter from your supplier or direct from L&T.
With those inputs we can do anything

Answer / pearl george

there are so many softwares available on the net such as modscan, simplymodbus by which u can communicate. rs485 port uses the modbus rtu mode of communication in L&T er300p.with these softwares u can get the values like voltages, current, pf, frequency etc that are stored in the holding register of the meter. to communicate with the energy meter u hav to prepare a query with the required function code.
more details required, pls feel free to ask me

Answer / pearl george

hey anis..
i wud b happy to help you.. but i jus remembered dat power consumption s nt available at d holdinding regisers of the meter. in my projct, i had to only acquire d pawer which i calculatd from the V, I n power factor dat will be updated in d register n d query i talked abt is used to write to dose registers.. so.. i dunno if my query wud help you..
y dnt u access d data to d pc n dn develop a software werin u can do d calculations recquired? i can try helping if dats d case.. coz v used vb.net to develop a software wer v tuk dese voltage n all n den calculated der..

Answer / anbh

Hey I have more questions on ER300P. Can I have ur mail id
plz. Thanks. ANBH

Answer / pearl

wat is dat u wanna knw? i comleted dat projct.. if u want ny help, mail me..

Answer / ab

I'm using this meter to study the power utilization for
several load settings in a complex theromchemical
plant.....At the begning of every measurment I want to
round off the start point of the power consumption reading
to 4 digits (ex:xxxx0000)....so that I can apply my algo on
the readings which I get at the end of my measurement.

Does any one of you know how to do it?

Answer / pearl george

u can write in the meter using write code using modbus. jus chek the location of the power using modscan or sum silmple software n then u can write in dat location with a loop or sumtng at ur will..

Answer / anbh

Thank you very much George.
As I know from ER300P manual....we have a programing
password with which I can change some settings of the meter
like CT\PT ratio and RTC etc...So can I use the same
programing password to write to the location of current
power consumption?

Thank you again.

With best regards,
Anis

Answer / anbh

Hello George,

It's again me(Anis)....
In ur 1st reply you wrote..."to communicate with the energy
meter u hav to prepare a query with the required function
code"....Can you plz share the query you worte for your
project and also plz let me know where can I find the
function code to write to the address of total power
consumption.

Regards,
Anis.

Answer / siva kumar

Hi george, i am siva, i have L&T Trivector Meter ER300p, Can
u guide me how to take data from the meter

We are using Rosemount 5400 series Radar Level Transmitters in all types of Sump Applications having oily water hdrocarbon petrochemical nature. What we are facing the problem frequently is that always getting reading frezzed at some value. If we do power recycling , sometimes it is working . then making same freezing problem. If anybody faced before such type of problem and also having solution , Please give the answer.

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