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

HELLO FRENDS ,, I M IN THE MIDST OF TROUBLE .. JUST LITTLE HELP ME... SUPPOSE ,, I HAVE A CLOSE VESSELE TANK ( HEXANE MEDIA ) ,, I M USING ROSEMOUNT 2051 DPT FOR LEVEL APPLICATION .. ITS CALIBRATE RANGE IS.. . 0 TO 950 MMH20 ..I DID CALIBRATED DPT WITHOUT REMOVING IMPULSE LINE OF HIGH AND LOW TAPPING.. & WITHOUT DISTURB 3 WAY MANIFOLD..!!! BUT ,,, DURING CALIBRATION I SELECT RANGE BY HART LRV IS 900 MMH20 & URV IS 1300 MMH20 ,, BUT ,TANK LEVEL SOMETIMES 100 % AT 1100 MMH20 , SOMETIMES 1300 MMH20 ..IN THIS CONDITION .. WHOLE LOOP FAILED ,, MAIN THING IS THAT ,, HOW TO CUSTOME RANGE SELECT ?? AND IF I USED RANGE OVER THE ORIGINAL CALIBRATE RANGE ,,,THEN WHAT ERROR WILL BE COME ??? HOW TO ZERO CALIBRATION OF DPT... HOW TO ZERO TRIM BY MANIFOLD ?? AND FOR TANK LEVEL PURPOSE ... WHICH UNIT I CAN USE ??? IS THERE ANY CALCULATION OR CALIBRATION .. IF YEH .. THEN PLZ JUST GIVE ME CALIBRATION STEPS FOR DPT.. THANKS YOURSSSSSSS

1 Answers   Torrent Pharma,

why r using 250 resistances

6 Answers   Sabic, Samsung,

why we use negative 24vdc to a proximeter

4 Answers   KNPC,

why use 4-20mA in the field of instrumentation?

8 Answers  

which gas or which liquid is filled in capillary of dial type temperature indicators on power transformers

2 Answers  

loop chech tools list

1 Answers   BAP,

hello.my friends.i am an electronics & instrumentation engineer.i want to know Q1.why lugs use in instrumentation cable termination? Q2.if limit switch not working what to do?

2 Answers  

please send data bank of quetions answers on analytical instrumentation.

0 Answers  

what is basic working principle of Governer in power plant?

3 Answers  

what is DCS?

24 Answers   Reliance, SWCC,

What should be hight of CONTROL panel for access & OPERATION What is BIS & INDIAN STD for SAME?

3 Answers  

What is difference between reset and initialization in industrial automation?

1 Answers   Marafiq,