Energy Meter Block in SCADA

What SCADA programming system are you using?

Function Block or Ladder Logic or FUZZY?

A totalizer sub-routine in ladder logic with a 15 minute timed output enabled to transfer the collected tag DATA value to the appropriate register address?

A totalizer function block with 15 minute timed output enabled to transfer the collected tag DATA value to the appropriate register address?

Yes, What he said!

Wow! You want an instant answer on how to accomplish greater resolution from an undefined energy meter - with undefined functionality, hooked to an undefined SCADA system - with undefined functionality.

Could you be a bit less specific?

Killowatt0,

You've seen some of the posts here!!!!!

Actually, I think he could have given us less and we would play the 20 questions and then they would just vanish.

Leaving us holding our you know whats and a blank stare in our eyes?

SHOCKHISCAN did an excellent job of giving him the base answer without having any specific details.

I was going to say "Have your SCADA tech do it, but I think he is the SCADA tech!

In some cases me thinks that "SCADA TECH" actually means:

Slightly Competent And Delirious Ass That Everyday, Causes Havoc

Awesome, I love it!

If the OP had given any more info on the details of the equipment, you probably could have told him the exact method for modifying the register?

Yep, along with a .pdf drawing or screenshot of the required programming algorithms.

The puzzling part of this is that most software packages include documentation with a myriad of basic programming function examples and this particular one is covered extensively by AB, GE, Schneider, and Siemens in their docs.

Also; If you are a licensed user with an account, most companies provide free technical support online or by phone unless the software is obsolete and no longer supported.

Nope. According to this , he is a "power engineer"!

Aren't you just measuring the quantity of pulses over a given period where the pulses represent the Watt hours?

http://en.wikipedia.org/wiki/Electricity_meter

http://openenergymonitor.org/emon/buildingblocks/introduction-to-pulse-counting

Find out from the meter documentation exactly how much Wh a pulse represents and then read the pulses continuously in SCADA so you know how much energy has been used and update the display accordingly (using an integration function or similar).

Depending on the SCADA system there may already be functional blocks that can do this without you having to write your own.

Judging from the OP's question formulation:

I believe he/she is working with a weighted value tag which could be a stream of digital pulses or an analog input signal either of which will require a read/write block, a totalizer, and possibly an accumulator routine with a protocol converter to broadcast it onto the network.

It must not be very important or pressing otherwise they would have responded with clarification and more questions.

I'm out of this one.

Have a great weekend everyone!

Hint: count the pulses, and do a retentive addition every time the seconds timer hits 900. Then reset the timer and the pulse counter at the same time.

In the meantime....

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