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u/cheeseshcripes

▲ 64 r/PLC

RS232 and Other Serial, There Has To Be An Easier Way

I work on a lot of 90s equipment, and I always find myself struggling to connect to serial ports, there's all the different configurations and speeds and protocols, there must be a way to sniff or brute force the connection I haven't figured out yet, looking through crusty old manuals or guessing is super time consuming. I understand some parts of the connection, but is there a way to use PuTTY or RealTerm or something like that to simply determine the active configuration?

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u/cheeseshcripes — 2 days ago
▲ 1 r/ElectricalEngineering

Got a Power Quality Analysis, Now What?

I know the rules say no building electrical but this is a little different and I'm just looking for guidance. r/electricians just says I need an EE.

So I have a building (factory) with a weird set of symptoms, but in just broad strokes the power quality analysis is "fine". Obviously, if you look at the charts, there are some strange dips and bumps and drops in the various parameters, but I can't tell if this is coming off the street or being produced in the building. There's no real crazy loads in the building and things generally look good going from equipment standpoints, nothing crazy yet like tripping motor starters or burning up cables, but weird shit happens seemingly spontaneously, like control boards or relays exploding, compressor motors going into overheat when they are medium loaded, MUA and HVAC just turning off.

Is there any guides to analyzing this data or does anyone have a sequence of testing or elimination and what to look for? The power quality analyzer is pretty expensive so we don't really want to keep it hooked up for months on end without a real plan. Is there a trade or profession that deals with this?

u/cheeseshcripes — 11 days ago
▲ 2 r/electricians

Got a Power Quality Analysis, Now What?

So I have a building (factory) with a weird set of symptoms, but in just broad strokes the power quality analysis is "fine". Obviously, if you look at the charts, there are some strange dips and bumps and drops in the various parameters, but I can't tell if this is coming off the street or being produced in the building. There's no real crazy loads in the building and things generally look good going from equipment standpoints, nothing crazy yet like tripping motor starters or burning up cables, but weird shit happens seemingly spontaneously, like control boards or relays exploding, compressor motors going into overheat when they are medium loaded, MUA and HVAC just turning off.

Is there any guides to analyzing this data or does anyone have a sequence of testing or elimination and what to look for? The power quality analyzer is pretty expensive so we don't really want to keep it hooked up for months on end without a real plan.

u/cheeseshcripes — 11 days ago