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Search: Posts Made By: cardosocea
Forum: LIVE PLC Questions And Answers May 18th, 2018, 05:54 AM
Replies: 3
Views: 106
Posted By cardosocea
You can export the code... but I'm not sure how...

You can export the code... but I'm not sure how you could import it to Twincat. The DB's could be easy actually, but the code I'm not too sure.

Is it SCL or ladder?
Forum: LIVE PLC Questions And Answers May 18th, 2018, 02:08 AM
Replies: 13
Views: 256
Posted By cardosocea
why not a timer based on the condition that the...

why not a timer based on the condition that the temperature remains stable within 1 minute instead and use the Timer.DN flag to start the sequence?

Edit:

You're not trying to calculate...
Forum: LIVE PLC Questions And Answers May 18th, 2018, 02:06 AM
Replies: 12
Views: 434
Posted By cardosocea
Three floors of office building... monitor each...

Three floors of office building... monitor each socket... 3000$ with industrial equipment... yeah, sorry to say but that will be impossible.

Did you mean socket circuit instead?
Forum: LIVE PLC Questions And Answers May 18th, 2018, 02:04 AM
Replies: 23
Views: 800
Posted By cardosocea
I would just add that properly named variables go...

I would just add that properly named variables go an awful long way in understanding code... not the overall sequence or process, but the nitty gritty of the implementation.
Forum: LIVE PLC Questions And Answers May 18th, 2018, 02:01 AM
Replies: 5
Views: 145
Posted By cardosocea
Why are you using retentive timers?

Why are you using retentive timers?
Forum: LIVE PLC Questions And Answers May 17th, 2018, 09:40 AM
Replies: 1
Views: 59
Posted By cardosocea
We would probably need to see how RealTerm is...

We would probably need to see how RealTerm is configured, however I would risk saying that this is not a string but binary.

If it is binary, it won't have spaces.

We don't know which PLC you...
Forum: LIVE PLC Questions And Answers May 17th, 2018, 09:37 AM
Replies: 15
Views: 487
Posted By cardosocea
Additionally, some managers that need to be...

Additionally, some managers that need to be massive stakeholders of the project won't want his managers digging through the data and questioning them.



I would say three networks......
Forum: LIVE PLC Questions And Answers May 17th, 2018, 07:32 AM
Replies: 13
Views: 313
Posted By cardosocea
So you're looking at a weighed average? If you...

So you're looking at a weighed average? If you calculate your rate of change once a minute and add that to a weighed average consistently and map both current level and the weighed average side by...
Forum: LIVE PLC Questions And Answers May 17th, 2018, 07:27 AM
Replies: 12
Views: 434
Posted By cardosocea
The software is free, but there is talk that a...

The software is free, but there is talk that a paid version with proper support will come out. The differences aren't that clear to me, but being Rockwell I can see it becoming a smart relay as the...
Forum: LIVE PLC Questions And Answers May 17th, 2018, 07:06 AM
Replies: 4
Views: 113
Posted By cardosocea
Actually it's not a bit, but a value in the OB1...

Actually it's not a bit, but a value in the OB1 parameters.

Check this forum post:

https://support.industry.siemens.com/tf/WW/en/posts/ob1-first-scan/20376?page=0&pageSize=10
Forum: LIVE PLC Questions And Answers May 17th, 2018, 02:12 AM
Replies: 15
Views: 487
Posted By cardosocea
Hi, I think perhaps I didn't pass my message...

Hi, I think perhaps I didn't pass my message across.

All the points you raise are valid and I agree with you. My pet peeve is that companies are pushing this wave of IOT for something that has...
Forum: LIVE PLC Questions And Answers May 17th, 2018, 02:03 AM
Replies: 13
Views: 735
Posted By cardosocea
Odd, mine comes within minutes and I'm in the UK.

Odd, mine comes within minutes and I'm in the UK.
Forum: LIVE PLC Questions And Answers May 17th, 2018, 02:02 AM
Replies: 4
Views: 113
Posted By cardosocea
You'll have to dig this a bit more, but the first...

You'll have to dig this a bit more, but the first OB being run when the PLC starts is OB100 (or similar, I think 100 is warm restart). Inside that OB, set a bit to 1.
At the end of OB1, reset the...
Forum: LIVE PLC Questions And Answers May 17th, 2018, 02:01 AM
Replies: 12
Views: 434
Posted By cardosocea
I don't think a PLC will be the cheapest, best...

I don't think a PLC will be the cheapest, best option for this.
Forum: LIVE PLC Questions And Answers May 16th, 2018, 02:55 PM
Replies: 15
Views: 487
Posted By cardosocea
You are correct... vertical data is missing in...

You are correct... vertical data is missing in industry.

However, none of the new buzzwords like Industrie 4.0, IIOT, etc... address the fact that in a lot of places, the data is there but...
Forum: LIVE PLC Questions And Answers May 16th, 2018, 08:18 AM
Replies: 9
Views: 255
Posted By cardosocea
Daisy chaining would add to the lag of the...

Daisy chaining would add to the lag of the signal. Imagine that you have 5 PLCs communicating, the signal would make it to the 5th PLC in the chain with considerable delay compared to the first...
Forum: LIVE PLC Questions And Answers May 16th, 2018, 03:02 AM
Replies: 4
Views: 208
Posted By cardosocea
I've seen this facility before in a custom built...

I've seen this facility before in a custom built SCADA package for marine/military industry and it was great as you could track the logic directly from the value being displayed on the screen by...
Forum: LIVE PLC Questions And Answers May 15th, 2018, 10:00 AM
Replies: 12
Views: 257
Posted By cardosocea
I was thinking along the lines of a histogram per...

I was thinking along the lines of a histogram per hour for a day, but it makes sense in your case I suppose.
Forum: LIVE PLC Questions And Answers May 15th, 2018, 08:06 AM
Replies: 12
Views: 257
Posted By cardosocea
I think you have a problem in the one shot as it...

I think you have a problem in the one shot as it has to see the condition change.

The first condition remains high for the morning shift and since you are looking for a NEQ, the condition is...
Forum: LIVE PLC Questions And Answers May 15th, 2018, 06:07 AM
Replies: 8
Views: 258
Posted By cardosocea
I think the errors will be related 256.91 versus...

I think the errors will be related 256.91 versus 256.92, but I don't think the resolution will be the same. However, it may shed some light as to what the FC is supposed to do and why it can't be...
Forum: LIVE PLC Questions And Answers May 15th, 2018, 04:22 AM
Replies: 8
Views: 258
Posted By cardosocea
Does the controller have enough memory? Is...

Does the controller have enough memory?

Is it password protected?
Forum: LIVE PLC Questions And Answers May 15th, 2018, 02:25 AM
Replies: 13
Views: 735
Posted By cardosocea
I believe this is the link you are looking for: ...

I believe this is the link you are looking for:

https://support.industry.siemens.com/cs/document/109741821/trial-download-simatic-step-7-v5-5-sp4-?dti=0&lc=en-WW

The packages you mention are...
Forum: LIVE PLC Questions And Answers May 14th, 2018, 07:42 AM
Replies: 13
Views: 735
Posted By cardosocea
Off the top of my head, LOGO doesn't use STL......

Off the top of my head, LOGO doesn't use STL... so there's that. I only have version 8, does version 6 use STL? If not, perhaps it should be interesting to raise this with your school.

If you...
Forum: LIVE PLC Questions And Answers May 14th, 2018, 07:13 AM
Replies: 16
Views: 500
Posted By cardosocea
how do you detect if buttons are pressed at the...

how do you detect if buttons are pressed at the same time? I would say that you could make an array.
If button "1" is pushed (and no other is), then shift 1 into the array.
If button "2" is...
Forum: LIVE PLC Questions And Answers May 14th, 2018, 07:11 AM
Replies: 20
Views: 829
Posted By cardosocea
They don't...

They don't...
Showing results 1 to 25 of 500

 
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