You are not registered yet. Please click here to register!


 
 
plc storereviewsdownloads
This board is for PLC Related Q&A ONLY. Please DON'T use it for advertising, etc.
 
Try our online PLC Simulator- FREE.  Click here now to try it.

---------->>>>>Get FREE PLC Programming Tips

New Here? Please read this important info!!!


Go Back   PLCS.net - Interactive Q & A > Search Forums

Showing results 1 to 25 of 500
Search took 0.10 seconds.
Search: Posts Made By: Bit_Bucket_07
Forum: LIVE PLC Questions And Answers February 20th, 2018, 08:24 PM
Replies: 10
Views: 278
Posted By Bit_Bucket_07
Perhaps you should consider hiring a professional...

Perhaps you should consider hiring a professional to assist you with this project.
Forum: LIVE PLC Questions And Answers February 20th, 2018, 08:11 PM
Replies: 20
Views: 7,808
Posted By Bit_Bucket_07
That's the only way to reset outputs when...

That's the only way to reset outputs when communications are lost. The processor can't do it.
Forum: LIVE PLC Questions And Answers February 19th, 2018, 10:38 AM
Replies: 10
Views: 278
Posted By Bit_Bucket_07
Why would you want to write logic in drives that...

Why would you want to write logic in drives that are controlled by a PLC? It seems to me that it would be much easier to simply write this logic in the PLC program.
Forum: LIVE PLC Questions And Answers February 15th, 2018, 11:36 AM
Replies: 18
Views: 304
Posted By Bit_Bucket_07
Yeah, I prefer using the "word" data type for...

Yeah, I prefer using the "word" data type for such data moves, since that will result in copying the exact bit pattern without regard for decoding two's complement representations of signed numbers.
Forum: LIVE PLC Questions And Answers February 14th, 2018, 04:20 PM
Replies: 9
Views: 205
Posted By Bit_Bucket_07
That is an option that may be selected when...

That is an option that may be selected when configuring an Access Name. The choices are: "Advise all items" or "Advise only active items".
Forum: LIVE PLC Questions And Answers February 14th, 2018, 03:46 PM
Replies: 18
Views: 304
Posted By Bit_Bucket_07
Sure. Is there a question, or are you simply...

Sure. Is there a question, or are you simply letting us know that you plan to do this?

I haven't worked with an RX3i PLC, but in a Series 90 PLC, I'd just do a MOVE with data type WORD.

Of...
Forum: LIVE PLC Questions And Answers February 14th, 2018, 11:33 AM
Replies: 9
Views: 205
Posted By Bit_Bucket_07
It's not terribly complicated to only send a PLC...

It's not terribly complicated to only send a PLC to PLC message upon exception. You simply need to copy the contents of your message data register to a holding register each sweep and then only...
Forum: LIVE PLC Questions And Answers February 12th, 2018, 10:21 PM
Replies: 13
Views: 370
Posted By Bit_Bucket_07
Looks like the drive isn't yet configured...

Looks like the drive isn't yet configured properly. What do you find under the other tabs?
Forum: LIVE PLC Questions And Answers February 12th, 2018, 10:17 PM
Replies: 55
Views: 19,709
Posted By Bit_Bucket_07
I learned to program PLCs with a handheld Boolean...

I learned to program PLCs with a handheld Boolean keypad, so I've always thought of the NO and NC relay contact symbols in RLL as "ANDs" or "AND NOTs" when in series and "ORs" or "OR NOTs" when in...
Forum: LIVE PLC Questions And Answers February 3rd, 2018, 06:32 PM
Replies: 17
Views: 422
Posted By Bit_Bucket_07
It may be easier and less expensive to route...

It may be easier and less expensive to route plastic tubing than to run armored cable or conduit, but you can't do that with NG. Ask your distributor about instruments rated for use with NG. They...
Forum: LIVE PLC Questions And Answers February 3rd, 2018, 06:11 PM
Replies: 17
Views: 422
Posted By Bit_Bucket_07
It's not a problem to obtain an instrument rated...

It's not a problem to obtain an instrument rated for use with NG, but I personally wouldn't bring gas lines into my PLC cabinet. What is gained by doing that? It's easier and more effective to...
Forum: LIVE PLC Questions And Answers February 3rd, 2018, 06:06 PM
Replies: 23
Views: 753
Posted By Bit_Bucket_07
The problem lies in getting an exact replacement...

The problem lies in getting an exact replacement within a reasonable time frame. That's much easier with a contactor than with a drive. Many drives are likely to become obsolete models prior to the...
Forum: LIVE PLC Questions And Answers February 3rd, 2018, 05:48 PM
Replies: 23
Views: 753
Posted By Bit_Bucket_07
I agree that a soft start drive would be a...

I agree that a soft start drive would be a superior backup, but it wouldn't be quite as cost effective. As for whether starting a 100 HP motor across the line would shut down the entire plant, I...
Forum: LIVE PLC Questions And Answers February 3rd, 2018, 11:43 AM
Replies: 23
Views: 753
Posted By Bit_Bucket_07
Bypass contactor schemes wouldn't be so popular...

Bypass contactor schemes wouldn't be so popular were they not a cost effective backup plan for mission critical motors.
Forum: LIVE PLC Questions And Answers February 3rd, 2018, 10:47 AM
Replies: 2
Views: 205
Posted By Bit_Bucket_07
It sounds like a reasonable assumption. The rated...

It sounds like a reasonable assumption. The rated value would need to reflect the output capability in order to be valid, and energy lost is energy lost.
Forum: LIVE PLC Questions And Answers February 3rd, 2018, 08:54 AM
Replies: 9
Views: 463
Posted By Bit_Bucket_07
I want to preface my response by admitting that I...

I want to preface my response by admitting that I don't consider myself to be a drive expert, but what you are failing to consider is that these drives utilize closed loop control by monitoring their...
Forum: LIVE PLC Questions And Answers February 1st, 2018, 09:39 PM
Replies: 21
Views: 1,041
Posted By Bit_Bucket_07
I've always insisted upon early break auxiliary...

I've always insisted upon early break auxiliary contacts on a local disconnect even for an across the line starter. As has already been mentioned, the disconnect stabs are designed to carry a load --...
Forum: LIVE PLC Questions And Answers February 1st, 2018, 08:12 PM
Replies: 11
Views: 483
Posted By Bit_Bucket_07
+1

+1
Forum: LIVE PLC Questions And Answers February 1st, 2018, 08:06 PM
Replies: 3
Views: 123
Posted By Bit_Bucket_07
This is a link to a user manual:...

This is a link to a user manual: https://www.logic-control.com/media/IOSrv_GESNP.pdf

You'll need to configure your IO Server to communicate with your PLC, configure an Access Name in InTouch to...
Forum: LIVE PLC Questions And Answers February 1st, 2018, 07:57 PM
Replies: 11
Views: 483
Posted By Bit_Bucket_07
I agree that "normal" can be a confusing bit of...

I agree that "normal" can be a confusing bit of terminology sometimes.

For instance, I've seen normally open micro-switches operated by cams in conveyor e-stop enclosures that provide a closed...
Forum: LIVE PLC Questions And Answers January 31st, 2018, 10:40 PM
Replies: 11
Views: 483
Posted By Bit_Bucket_07
Ideally, all switches should be NC, and open in a...

Ideally, all switches should be NC, and open in a fault condition, but we don't live in a perfect world. Sometimes, you just have to deal with what you have.
Forum: LIVE PLC Questions And Answers January 30th, 2018, 07:40 PM
Replies: 13
Views: 326
Posted By Bit_Bucket_07
Remember that files burned to a CD get a "read...

Remember that files burned to a CD get a "read only" file attribute set when they are burned to the disk. It would be worthwhile to check file attributes and make sure that the file is read-write...
Forum: LIVE PLC Questions And Answers January 30th, 2018, 07:34 PM
Replies: 5
Views: 170
Posted By Bit_Bucket_07
It wouldn't be as simple as just clicking the...

It wouldn't be as simple as just clicking the address bar in the dialog box and browsing to a different folder while creating a project, would it?
Forum: LIVE PLC Questions And Answers January 30th, 2018, 07:25 PM
Replies: 15
Views: 614
Posted By Bit_Bucket_07
I would guess that the majority of the numerical...

I would guess that the majority of the numerical discrepancy is due to rounding errors in the Floating Point math. If so, the system will be quite accurate when started from zero, and will become...
Forum: LIVE PLC Questions And Answers January 29th, 2018, 06:02 PM
Replies: 4
Views: 225
Posted By Bit_Bucket_07
Situations like this one are why I would...

Situations like this one are why I would recommend implementing a heartbeat based loss of PLC communications alarm on any HMI system, so that operators can be made aware that the data being received...
Showing results 1 to 25 of 500

 
Forum Jump

All times are GMT -5. The time now is 09:09 AM.


.