Hp Calculator Forum

[Stephani Kapnick]

Onmost previous HMIs on other platforms, for some operator popups, such as sequence selections we add a calculator icon in the corner that when clicked open the Windows Calculator App. Just as a general tool for the operators.

I was planning to build my own calculator template in the designer for doing simple arithmetic which would be built in and used inside the Vision Client, instead of opening a third-party app. However is there another way to do this? Or is there a tool which has already been developed?

There probably is. But it wasn't invented here. You realize you just caused all the little programming squirrels on all the little programming wheels in all the Ignition module developers' brains to hesitate and crash into the bars? So we can contemplate the glory of implementing a new calculator component in Ignition-flavored Java Swing? Because we can. And with a Reverse Polish Notation mode too, cause we're also engineers.

Sigh. You're supposed to do this on a Monday, so we can pretend to be writing important code while we futz along for the whole week. And definitely not do this when a vacation is coming up soon, like for me. Heavy, drawn-out sigh.

Actually i'm designing a PFC CCM using the UCC28180 IC. I have the calculator tool and the datasheet that are both provided by TI. the probelem is that on the calculator there is so many parameters that are calculated (expl: favg, heat sink sizing, ...) without giving the corresponding formulas in the datasheet. And there's other parameters that are taken in account without given them values such as the input RMS voltage.

The design calculator defaults to the average input line voltage in order to optimize the loop at the mid point of operation whereas the data sheet uses 115Vrms (nominal low line input). Please note that the design calculator enalbles the user to input any desirable line voltage in cell J180 to calculate the VCOMP value at full load at that specific desirede line voltage as well as any percentage of full load at that specific desired line voltage.

Can you please tell me what is the frequency of the current/voltage ripple at the output of the Boost converter? is it equal to the frequency switching or does it change with respect to other parameters?

The output will have a high frequency ripple that is at the switching frequency that will be "riding" on top of ripple that is at a lower frequency equal to the full-wave rectified line-frequency (which is why it's at 2 X fline).

If you look at the Users guide for the UCC28180EVM-573, Figure 13 shows the AC coupled output voltage with the board set to full load and the time scale is 2 ms per division. The input is 115Vac, 60 Hz. You can see there is a 119 Hz or so sine wave of 10 V peak to peak on the output (signal is AC coupled so this is on top of the 390VDC output). So this is the 2 x fline that is coming through to the output.

And then if you look at Figure 15 in the users Guide, under the same input conditions and same load, looking at the output much closer, on a 4 us per division scale, you can see the switching frequency ripple...about a 1 V pulse with noise that's at approximately 120 kHz. This is the switching frequency ripple that is coming through (and makes the trace in Figure 13 look a bit thick).

You can see the same thing for the 230VAc onput at 50 Hz by looking at Figures 14 and 16: a 100 Hz low frequency "wave" of output ripple at approx 12 V peak to peak and a 120 kHz ripple/noise that is approx 1 V.

If you notice the traces shown in fig 15 and 16 are also ac-coupled but because they are riding on top of the bigger ripple at the lower frequency I couldn't get the traces to be right in the middle of the scope plot...a moving target on a moving target.

The Developing an Embodied Carbon Policy Reduction Calculator report summarizes findings from the development of a proof-of-concept calculator and pilot study focused on estimating the carbon savings potentials of city-wide embodied carbon policies.

A growing number of cities are committed to tackling the urgent challenge of their built environment carbon footprint through their policies and programs. 110 cities took the Cities Race to Zero Clean Construction pledges to reduce embodied emissions in their policies and programmes in 2021, and 40 leading cities are participating in the C40 Clean Construction programme and mayors are setting the direction of travel by signing the Clean Construction Declaration, which requires collective action to halve embodied emissions by 2030.

However, embodied carbon is a new policy area for many cities and the lack of city-level data on embodied carbon is a significant barrier for policymakers to gain political support and make informed decisions. The goal of developing an embodied carbon policy reduction calculator is to address these challenges by:

The Carbon Leadership Forum and C40 Clean Construction teams collaborated in 2021 to develop a proof-of-concept for an embodied carbon policy reduction calculator, described in this report. The goal of this study was to:

The team developed four prototype calculators to estimate emissions from four types of embodied carbon policies using urban growth projections (floor area, building type, etc.) to 2050. The calculators provide a baseline estimate of embodied carbon emissions by 2050 alongside the carbon savings potentials of the selected reduction targets and policies.

The calculators described in this report are proof-of-concept: they are still limited in their ability for comparative decision-making at this time due to the gaps in data identified through this initial phase. Appendix B lists the priorities identified by the authors, contributors, and pilot cities necessary for their future development.

The team worked with New York City, Portland, and Austin (focusing on the South Central Waterfront neighborhood) to assess the total embodied carbon by 2050 for a baseline scenario and 3-6 reduction scenarios that correlated with the evaluated policy type.

Overall, policies requiring reductions in whole building embodied carbon were found to have the largest impact. The second-most impactful policy type based on the findings from the prototype calculators was incentivizing adaptive reuse, followed by low-carbon concrete and housing size policies. These findings highlight the need for better research and benchmarks on the whole buildings of different building typologies to support more robust estimates of total carbon savings potentials associated with each, but also to enable cities to pass these policies.

This study was commissioned by and co-developed with C40, thanks to the support of the City of Oslo and Ingka Retail (Ingka Group). The work is independent and has not been commissioned by any business, government, or other institutions. We would like to thank the following individuals from the pilot cities for contributing their time and feedback:

We would like to thank EskewDumezRipple (EDR), GGLO, Kieran Timberlake, LMN Architects, Miller Hull, and Mithun for contributing LCA reference models and time to provide the collection of reference models that informed our research.

I have a deal sheet and would love to see if someone can assist in plugging into a LH calculator for me(not sure due to the crazy lingo).

Your assistance is really appreciated

This is located for NY. My credit score is not the greatest, tier 3

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I would like to make one or more calculator-like pages in my wiki to, say, do some physics calculation using some forms. Is there a way to make these dynamic pages which perhaps execute a script to perform computation?

I drop in on the question for giving it some more momentous.? Being able to do some basic calculations, with complexity not exceeding highschool maths, would be a real handy feat for my use case (internal knowledgebase for a technical team), avoiding switching back and forth between DW and Excel.

I'm not quite sure what you are wanting. Are you wanting an embedded calculator that the reader can use, or are you just wanting to populate tables using formulae? If the latter, have a look at tablecalc:

Because I know every single function on it (it is easy to learn them all and actually remember them), it is extremely portable, is not very expensive, looks a little bit retro, and it is programmable.

Well it's an old thread but I'll try. Originally, I was looking for a scientific pocket calculator that was both programmable and graphics-capable with a colour display. However, since some models from other manufacturers require the installation of special software in order to connect the calculator to the PC, I decided to look for something simpler, but no less powerful. The decision was therefore not an easy one, as the corresponding device, among other things, should also be operated with alkaline batteries and not just with a proprietary accumulator. For this reason, the CASIO fx-CG50 was chosen!

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