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Search: Posts Made By: mendonsy
Forum: LIVE PLC Questions And Answers Today, 09:40 AM
Replies: 12
Views: 216
Posted By mendonsy
I have done something similar using Omron CP1L...

I have done something similar using Omron CP1L PLC's and a Maple Systems touchscreen. The copy and paste screen function isn't quite that simple using that combination because each object on the...
Forum: LIVE PLC Questions And Answers February 22nd, 2018, 10:34 AM
Replies: 18
Views: 285
Posted By mendonsy
I use /F(457) all the time in CJ's a CP's and...

I use /F(457) all the time in CJ's a CP's and never had a problem with it. Is something else writing to either D256 or D257?? The result from /F will be a floating point number which uses two...
Forum: LIVE PLC Questions And Answers February 21st, 2018, 08:49 AM
Replies: 9
Views: 211
Posted By mendonsy
Another possibility would be to set your screen...

Another possibility would be to set your screen button to the "display popup window" option and turn on the "notification" option to set the bit ON in your PLC.
Forum: LIVE PLC Questions And Answers February 17th, 2018, 08:32 PM
Replies: 13
Views: 332
Posted By mendonsy
You could use a VFD directly off of single phase...

You could use a VFD directly off of single phase power to run the lathe, but you normally have to double the rating when using single phase power so it would require something like a 10 hp VFD. Most...
Forum: LIVE PLC Questions And Answers February 7th, 2018, 03:06 PM
Replies: 13
Views: 262
Posted By mendonsy
Would a safety floor mat work?? Those are made in...

Would a safety floor mat work?? Those are made in a lot of different sizes.
Forum: LIVE PLC Questions And Answers February 3rd, 2018, 04:04 PM
Replies: 6
Views: 270
Posted By mendonsy
Doesn't your NVR include motion detection?? Most...

Doesn't your NVR include motion detection?? Most of them do.
Forum: LIVE PLC Questions And Answers February 2nd, 2018, 09:27 PM
Replies: 7
Views: 401
Posted By mendonsy
The charge capacitors in the rectifier have a...

The charge capacitors in the rectifier have a fixed lifespan, usually about 5-10 years. If the drive is old enough they might be going bad.
Forum: LIVE PLC Questions And Answers January 25th, 2018, 12:39 PM
Replies: 12
Views: 296
Posted By mendonsy
If you have one of those you have a "serious"...

If you have one of those you have a "serious" problem?
Forum: LIVE PLC Questions And Answers January 9th, 2018, 09:38 AM
Replies: 5
Views: 391
Posted By mendonsy
The Cooper Industries (Bussman) data sheet says 1...

The Cooper Industries (Bussman) data sheet says 1 or 2 wires per terminal depending on wire size. I doubt that the other manufacturers would be any different.
Forum: LIVE PLC Questions And Answers January 6th, 2018, 07:19 PM
Replies: 5
Views: 423
Posted By mendonsy
I have a (cheap) DVR which has digital 8 alarm...

I have a (cheap) DVR which has digital 8 alarm inputs. Each input can cause one or more PTZ cameras to move to any of their preset positions. I'm sure that there are better units around than the one...
Forum: LIVE PLC Questions And Answers January 5th, 2018, 02:16 PM
Replies: 7
Views: 365
Posted By mendonsy
These will work....

These will work....
Forum: LIVE PLC Questions And Answers January 5th, 2018, 02:13 PM
Replies: 14
Views: 641
Posted By mendonsy
The most common use on a DI is to protect the PLC...

The most common use on a DI is to protect the PLC input from voltage spike or change voltage levels such as using a 120 volt device on a 24vdc input. For a DO the external relay is generally used to...
Forum: LIVE PLC Questions And Answers January 5th, 2018, 11:20 AM
Replies: 7
Views: 365
Posted By mendonsy
That power supply only draws less than 1 amp...

That power supply only draws less than 1 amp while running, but the inrush current at startup is 20 amps. I would use something like a 5 amp D curve UL1077 circuit breaker for it.
Forum: LIVE PLC Questions And Answers December 19th, 2017, 04:41 PM
Replies: 13
Views: 498
Posted By mendonsy
One issue you have to consider is what happens...

One issue you have to consider is what happens when a pump is replaced. If you were to reset the run time to zero then that one would need to run until it catches up with the others.
What I have...
Forum: LIVE PLC Questions And Answers December 17th, 2017, 03:17 PM
Replies: 142
Views: 13,236
Posted By mendonsy
Yeah, that sound about right. HR people don't...

Yeah, that sound about right. HR people don't have a clue what the job entails.
Forum: LIVE PLC Questions And Answers December 15th, 2017, 09:25 AM
Replies: 14
Views: 596
Posted By mendonsy
You might also want to look at some of the PLR's...

You might also want to look at some of the PLR's that are available. I have had good luck with the Teco SG2 for small systems and there are several similar devices.
Forum: LIVE PLC Questions And Answers December 13th, 2017, 07:56 PM
Replies: 8
Views: 313
Posted By mendonsy
Edwards Signaling has a large range of products...

Edwards Signaling has a large range of products that will probably work.
Forum: LIVE PLC Questions And Answers December 9th, 2017, 08:27 AM
Replies: 50
Views: 2,625
Posted By mendonsy
I have to agree with BobB about the Omron. The...

I have to agree with BobB about the Omron. The CX-One package is clean, flexible, and can be anything from simple to complex depending on how you elect program it.
Forum: LIVE PLC Questions And Answers December 6th, 2017, 11:24 AM
Replies: 25
Views: 813
Posted By mendonsy
Lower ambient temperature = higher efficiency =...

Lower ambient temperature = higher efficiency = less current draw
Forum: LIVE PLC Questions And Answers December 2nd, 2017, 01:04 PM
Replies: 19
Views: 967
Posted By mendonsy
Is there any way that you could lock it?? I have...

Is there any way that you could lock it?? I have seen one somewhere that had a key lock.

Found it!! Mencom makes a locking bar for their panel interface connectors.
Forum: LIVE PLC Questions And Answers November 8th, 2017, 08:01 PM
Replies: 24
Views: 1,350
Posted By mendonsy
Sooo ... they are losing $100K per day and they...

Sooo ... they are losing $100K per day and they don't have a backup system??? That's a new level of stupid!!
Forum: LIVE PLC Questions And Answers November 6th, 2017, 09:11 PM
Replies: 3
Views: 182
Posted By mendonsy
1-5 volts and 4-20ma are essentially the same...

1-5 volts and 4-20ma are essentially the same signal so there should be no effect at all.
Forum: LIVE PLC Questions And Answers November 6th, 2017, 04:34 PM
Replies: 13
Views: 937
Posted By mendonsy
Sorta.... I had a customer with one of those who...

Sorta.... I had a customer with one of those who wanted some changes made about 3 years ago. We decided it just wasn't practical to work on it and replaced it with a modern PLC.
Forum: LIVE PLC Questions And Answers November 4th, 2017, 08:29 PM
Replies: 5
Views: 428
Posted By mendonsy
I saw a somewhat similar case many years ago. ...

I saw a somewhat similar case many years ago.
An electrician took the cover off of a 100 kva transformer to change the taps. He left the cover bolts and his wrench lying in the bottom of the...
Forum: LIVE PLC Questions And Answers November 3rd, 2017, 10:23 AM
Replies: 7
Views: 434
Posted By mendonsy
The answer depends on a lot of external factors...

The answer depends on a lot of external factors like the type of sensors being used and the ambient conditions, but adding a suitable MOV certainly can't hurt. They should at least be able limit the...
Showing results 1 to 25 of 500

 
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