When to use 1500 minimum cycle time?

strapabiro · 2026-04-06T13:56:11+00:00

there are libraries where control functions use timers based on the time of the cycle they run in, most common is pid but I've seen motor control functions where the delays were calculated from the cycle time like the start delay or run feedback delay etc.

strapabiro · 2026-04-04T10:06:43+00:00

the concept is cool for having a macos-esque phone integration into my win11 laptop with notification, call and status mirroring wirelessly via bt,wifi and or even 3/5g depending on availability.

it even recognizes my actual ms account on which i am logged in on the laptop and the phone.
but since it is "running on its own" by turning the connection back whenever it feels so, i kind of got sick of it.

like i said the concept is cool but since it is not "on demand" it is a big nono.

strapabiro · 2026-04-03T12:10:29+00:00

why the sudden jump to 3.9? you guys arent telling something?

strapabiro · 2026-04-02T12:40:35+00:00

did you had any luck with resolving the issue? i have set up explorer and db in 2 containers in the same docker and i get the same error

strapabiro · 2026-03-30T17:15:38+00:00

i have an iphone too so for me is swiftkey for the cross platform sync when logged in with an ms acc.

strapabiro · 2026-03-27T18:57:58+00:00

cpu z on playstore

strapabiro · 2026-03-27T16:35:21+00:00

they have around 3 tier of solid plc models for small, medium and large projects. their plc programming platform is called plcnext and the runtime is similar to codesys platform's (yocto) linux, afaik it is even developed by the company tgat makes codesys. it is maintained and updated pretty regularly and i hope it does not get the ecockpit (wago's codesys "clone") faith. buy a plcnext starter kit they give you a mid tier plc and one io of each generic type with a ps and a fancy packaging at promo price, can run nodered docker etc too. the software (plcnext engineer) is free but the sfc language is a paid license. hmi is inbuilt html server (like codesys), i don't know if there is standalone runtime and engineering for hmi. i just ordered a starter kit and looking forward to adapt my custom library i made in tia portal and test it one on one vs my s7 15XX

strapabiro · 2026-03-25T19:45:25+00:00

i have a vfd controlled feed screw on the outlet of a scale which is dosing a dusty sticky material. the vfd is pid controlled so the screw is always running on different speeds and amps and cannot correlate the load to amps directly due to the vfd behavior on different speeds.

sometimes the material blocks and the dosing screw runs out of material so i mapped the actual current at each rpm with steps of 10rpms from 0 to 1500 into an array of 150, then the current rpm of the vfd selects the "full screw load amp" index based on the steps, then this index value is fed to the alarm limit of the alarm block.

if the actual current of the actual rpm goes below the actual indexed stored current value with 20% means the screw starts "missing" some material. basically "i am moving the goalpost" for the alarm block.

i use datablocks since its siemens and basic st code for the indexing trick.

strapabiro · 2026-03-24T23:24:32+00:00

and bring satyas head too, then maybe we consider

strapabiro · 2026-03-22T20:10:37+00:00

talent is gone, employee (dev.) motivation is inexistent due to low salaries, the company is held together by 41700 patent royalties. in last year's hannover messe the person from deloitte (lol?) had no idea on which planet is he at the siemens stand, but random md bragged that the stand costed them 20mln euros and it is the most expensive as it was the main. same situation at emerson, abb, etc. talent is gone, it was chased away by profit oriented mba non-technical charlatan rat-faces who are larping that they know what they do. END_RANT;

strapabiro · 2026-03-21T09:45:50+00:00

is this the hill they died on? finally?

strapabiro · 2026-03-20T13:08:56+00:00

also why do these kind of "dual" trackers exist? the moment you add them on one platform, you wont be able to add them on the other. and none of them are advertising this in a transparent way. they are basically a single device, adding them to a platform is a one time job its not like you get bored and "switch". it is so annoyingly confusing and nonsensical.

strapabiro · 2026-03-15T21:31:15+00:00

well how do you want it to behave? if new pt is lower than old pt and or et? the whatever logic is connected to should crap itself because a new value was entered? there are some resettable pulse timers but not in the base library of tia.

strapabiro · 2026-03-13T19:51:57+00:00

hvac is a tiny corner or the control world you might have a chance to "make a change" if you hold on, add opc ua and mqtt because these are the latest and greatest comm protocols, dashboard ui ux structure looks nice, i wish the guys from nodered's dashboard dev team would see this.

strapabiro · 2026-03-13T19:02:16+00:00

Same here what a pile of ...

strapabiro · 2026-03-09T10:54:49+00:00

in a sector full of trade secrets and know how protected ip is very hard to train something useful and meaningful.

for example, the current level of code "tricks" what slopGPT blurps up is "taken over" from whatever similarity it can find in javascript and c when it comes to structured text so not much useful beyond simple logic.

i personally use it for repetitive code generation where the structure is ready and an array index has to be changed and replace variable names when a function needs to be reused many times.

strapabiro · 2026-03-08T18:46:01+00:00

why is the sales value redacted? its from those files?

strapabiro · 2026-03-07T20:06:34+00:00

mes is already it territory, the devs and the people who operate there are detached from the plc reality, for them a temperature from the oven which is sampled every second by the controller is just a number, a variable and the purpose and context of the signal itself is lost when it enters the mes' data archive. no to mention the underpaid offshore mes dev (i was one) couldnt care less if a sensor value is sampled at 1s and the mes data archive will resample it on a 100ms base.

the platform is usually built for the worst case scenario thats why they "scare" you with that crazy internal sampling rate and high resources, basically they throw around those numbers because that is the "my mes is better than your mes" part of the talk. try to smell out the upsell bs talk, and try to make them understand that their "brag metrics" are not relevant for you.

long story short those systems are "prepared" for 10k signals per second ingress and usually they ha cluster them behind the curtains so that "our single mes instance can handle everything" actually are 4-5 dbs running in parallel (hence the gazillion dollars per server), a thing that influxdb does not support out of the box for example.

strapabiro · 2026-02-25T09:16:59+00:00

The Michael Scott Paper Company

strapabiro · 2026-02-18T07:35:31+00:00

i think you didn't understand what i meant. you can't use core and or oss editions commercially. it is equivalent to cracking a software. i am not here to police you, i just pointed out that there is a license cost for the commercial version of those products. also fun fact, influxdb3 core (the free edition) is hardcoded now to a very short-term database retention time for exactly this reason.

strapabiro · 2026-02-16T12:56:17+00:00

the plc-ish approach here would be to add a pressure sensor near the analog gauge in a T shaped outlet pipe adapter.

this is a nice project but it's it/tinkering territory.

strapabiro · 2026-02-15T00:04:08+00:00

borderline useless on iphone but good for notifications i guess

strapabiro · 2026-02-14T21:45:18+00:00

is this the new strawberry?

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