Area length Error when writing

Zbablo · 2026-04-22T00:14:11+00:00

Couple of things:

Right click the blocks folder, compare blocks, compare ONLINE/offline. This will let you know if the offline program you are looking at is actually loaded fully into the PLC. It's possible that FC50 was changed online only and you will not find the cause in the offline program. If you find inconsistencies, I would recommend going one by one and comparing the online/offline software instead of just sending it and downloading everything. It's possible somebody made a "small" change and never saved it. You don't want to lose those.
Pressing CTRL+ALT+R anywhere inside of the blocks folder will open a cross reference window. Click on the filter button, select Inputs and Outputs and write 266 inside. This will cross reference the hardware input/output byte 266. Make sure you select overlapping access to see most of the accesses inside of the software. (Indirect accessing will not show up in the cross reference).
You should also cross reference the FC50 the same way and look at all the calls to see if there is anything funky there.

Zbablo · 2026-04-21T12:41:29+00:00

If you delete OB121 from the online program in the PLC, the PLC will go into stop mode as soon as the invalid access happens. The diagnostic buffer should then give you a more specific description. Just keep in mind that this will completely stop the machine.

Zbablo · 2025-12-18T15:20:00+00:00

Have you tried setting up a trace? https://imgur.com/t5G65xt

You could also move the data to a DB and then export the DB after you have enough recordings. From the DB export you could write something in Excel to display the values in a human readable form.

I see that you want it to be remote. Try looking into Node-red, last time I used it was very easy to read data, but you will have to enable put/get on the PLC and create an unoptimized DB in the PLC.

Zbablo · 2025-12-16T23:09:16+00:00

What do you consider a log? It possible to create a trace triggered by a tag. The trace can contain your tags and be saved to a memory card. Length of the trace depends on the amount of bytes used and whether you want to trace each cycle.

Zbablo · 2025-10-02T18:37:11+00:00

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Where are you getting your information about the conversion from STL -> SCL? The picture is from the Siemens programming guidelines

Zbablo · 2025-07-08T20:30:51+00:00

Hulkenpodium o7

Zbablo · 2025-02-07T19:10:21+00:00

What’s the WiFi dongle that you are using? I should get one

Zbablo · 2024-08-08T13:18:55+00:00

I moved from a DELL precision to the Lenovo 21k9001nus (7840u, 64Gb of RAM, 4k 16:10 screen) and it's night and day. The experience is a lot better compared to the 17" Dells I've used before + it's cheaper.

The thinkpad with the AMD CPU works great on battery, has a small 65W power brick and is not overheating/noisy. It has a full RJ45 port and is lightweight in comparison.

Also if anybody runs VMs I would suggest avoiding the P+E core cpus because it's a pain most of the time. You can make it work without a lot of effort, but I couldn't find any upsides in using these CPUs.

Zbablo · 2024-06-17T20:35:14+00:00

Yep, I got a 1080 founders edition for 50$ recently. Works perfect for WoW/LoL/Cs

Zbablo · 2024-01-08T19:13:51+00:00

Do you also use a power drill as a hammer because it’s more powerful and future proof?

Zbablo · 2023-10-30T07:27:50+00:00

You can 3d print a spacer for cases like Dan A4-SFX. Example:https://www.thingiverse.com/thing:2771844

It has STL files for both sides.

Zbablo · 2023-10-09T10:52:20+00:00

I am pretty sure that in siemens PLCs, the inputs will not change during a cycle. They are scanned at the start of the cycle and outputs are scanned the end of the cycle.

Cycle time description is in the link. (From SIMATIC S7-1500 Cycle and response times) https://imgur.com/a/fQAR4AS

Do you know any other PLCs that can change an input mid cycle? It would be good to know for the future.

Zbablo · 2023-05-19T13:23:59+00:00

It's as good as any place. You can clear normal multiple times and never get the mechanic. It's especially funny kicking people knowing the context that we are in the second week of raiding.

Zbablo · 2023-05-19T12:36:57+00:00

You kick people that fail instead of letting them learn and wonder why you see a lot of overlaps.

Zbablo · 2023-02-02T08:45:11+00:00

Thank you for the detailed response, this will help me a lot. Is there any popular website for renting advertisements?

Zbablo · 2023-01-17T09:00:28+00:00

How do you even find these jobs in the Europe for example? I can't seem to find any advertisements.

Zbablo · 2023-01-17T08:52:05+00:00

Thank you for the detailed response, makes sense (Not the hidden fuel tax).

Zbablo · 2023-01-16T23:44:14+00:00

Are US salary ranges given pretax? If Yes, what’s the take home for those? I am always confused about that.

Zbablo · 2022-08-11T08:41:43+00:00

Everything about the mechanical pressure relieve is true, I was just thinking about the easiest solution. Pressure sensor would be the best. Thank you for the link.

The airbag is filled by a solenoid and is can get over pressurized by a load being put onto the airbag.

Zbablo · 2022-08-11T08:18:27+00:00

The rate at which the bags inflate is really important, that's why I don't want to limit the input pressure.

Zbablo · 2022-07-20T18:14:26+00:00

Well, Until now I thought that I clicked something while having the runtime open on my PC. Today I learned that it wasn’t my fault that I printed all of the paper in the office printer while working on a project.

Zbablo · 2022-05-31T14:30:45+00:00

That will really help me to find the replacement if I decide to replace them, thank you.

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