TLDR: I have a UDT that I am using to write/read recipes for a process we run. Each part we make has its own recipe, and they have been manually confirming that the recipe matches our documented recipes. This has led to errors and scraped out parts. And it is surprisingly difficulted to maintain ch…

We use DigestBuilder for this sort of task internally. So your snippet becomes: from com.inductiveautomation.ignition.common.util import DigestBuilder segmentTagPath = ["[default]Folder/Tag_A","[default]Folder/Tag_B"] values = system.tag.readBlocking(segmentTagPath) digest = DigestBuilder.sha256(…

import org.apache.commons.codec.digest.DigestUtils.sha256Hex as sha256Hex data = "example-data-structure" print(sha256Hex(data)) ChatGPT for the win But it only works on strings

If the tags are all either strings or numbers, they should be hashable. So in theory you should be able to iterate through the master recipe, and the selected recipe, and compare the results of the python builtin hash() function. Something like this: def chunker(seq,size): return (seq[pos:pos + s…

import org.apache.commons.codec.digest.DigestUtils.sha256Hex as sha256Hex segmentTagPath = ["[default]Folder/Tag_A","[default]Folder/Tag_B"] values = system.tag.readBlocking(segmentTagPath) valueList = '' for x in values: valueList + str(x.value) print(sha256Hex(valueList)) I ended up doing so…

I think that PDriffith solution will work and thus he gets the solution point. Altho i might just use 16 bits to keep it short. But then I started to wonder if sha256 was the absolute best function to use. I went down a rabbit hole. Not knowing too much about cryptography, it took me some time to …

Short and reversible are literally mutually incompatible. Also, short increases the risk of collisions significantly. You may be interested in sidestepping the problem: [image] Tag Version Control Module Ignition Hello All, A while back I published (A bit quietly) a mod…

unfortunately, Pigeonhole principle - Wikipedia causes you suffering. What you could do is 'reversible compression, but operators check the first 6 bits of the hash', git style