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Search: Posts Made By: Bit_Bucket_07
Forum: LIVE PLC Questions And Answers July 18th, 2018, 12:25 PM
Replies: 6
Views: 203
Posted By Bit_Bucket_07
I'd suggest climate controlled panels for the...

I'd suggest climate controlled panels for the equipment in the hot, dirty area.

I think that the fear of using fiber optics is irrational, but the fiber signals would have to be converted to...
Forum: LIVE PLC Questions And Answers July 18th, 2018, 08:23 AM
Replies: 1
Views: 60
Posted By Bit_Bucket_07
I don't know about Win 10, but I've successfully...

I don't know about Win 10, but I've successfully run that version on Win 7 Pro. Net DDE is no longer supported and there might be some other functions (such as SendKeys and MessageBox) that you'd...
Forum: LIVE PLC Questions And Answers July 14th, 2018, 07:10 PM
Replies: 3
Views: 285
Posted By Bit_Bucket_07
The Integer data type is not your problem. The...

The Integer data type is not your problem. The low resolution electronics on the 1769-IF4XOF2 analog input module is your problem. That particular module only offers 8 bit resolution.
Forum: LIVE PLC Questions And Answers June 29th, 2018, 09:13 AM
Replies: 19
Views: 835
Posted By Bit_Bucket_07
In an application that genuinely requires...

In an application that genuinely requires trending, I'd prefer to go with a full blown, PC based HMI. The C-More panels are an excellent choice for the smaller, simpler applications for which they...
Forum: LIVE PLC Questions And Answers June 29th, 2018, 09:10 AM
Replies: 5
Views: 236
Posted By Bit_Bucket_07
ControlLogix isn't a "PLC family" in the old...

ControlLogix isn't a "PLC family" in the old sense of the word. If it were, it would have long since been replaced with a newer platform. Every major Revision of ControlLogix is a new and different...
Forum: LIVE PLC Questions And Answers June 28th, 2018, 08:09 PM
Replies: 8
Views: 346
Posted By Bit_Bucket_07
+1

+1
Forum: LIVE PLC Questions And Answers June 28th, 2018, 12:07 PM
Replies: 28
Views: 694
Posted By Bit_Bucket_07
Periodic tasks are useful for functions that are...

Periodic tasks are useful for functions that are time critical, such as totalization. A periodic task that operates once per second will be far more accurate than would a 1 Second timer pulse driving...
Forum: LIVE PLC Questions And Answers June 28th, 2018, 12:02 PM
Replies: 28
Views: 694
Posted By Bit_Bucket_07
Yes. If one branch transitions Off in the same...

Yes. If one branch transitions Off in the same sweep as another branch transitions On, the ONS will never see the Off state.
Forum: LIVE PLC Questions And Answers June 27th, 2018, 05:51 PM
Replies: 28
Views: 694
Posted By Bit_Bucket_07
Based upon what you are saying, it should work,...

Based upon what you are saying, it should work, but I would NEVER parallel multiple branches to a single one shot. You're just begging for trouble when you do that. The one shot requires a transition...
Forum: LIVE PLC Questions And Answers June 27th, 2018, 05:43 PM
Replies: 19
Views: 835
Posted By Bit_Bucket_07
I have no complaints. That said, I've only used...

I have no complaints. That said, I've only used them with AD PLCs.
Forum: LIVE PLC Questions And Answers June 12th, 2018, 07:51 PM
Replies: 10
Views: 418
Posted By Bit_Bucket_07
So, did everything return to normal after this...

So, did everything return to normal after this event occurred? If it was a one time glitch, then perhaps it was due to a transient brownout in your power. Are the computers running on separate...
Forum: LIVE PLC Questions And Answers June 12th, 2018, 04:22 PM
Replies: 31
Views: 1,725
Posted By Bit_Bucket_07
355/113 is a very close approximation of Pi, much...

355/113 is a very close approximation of Pi, much closer than is 22/7.
Forum: LIVE PLC Questions And Answers June 11th, 2018, 10:15 PM
Replies: 10
Views: 418
Posted By Bit_Bucket_07
Obviously, your Historical Logging stopped. DST...

Obviously, your Historical Logging stopped. DST can cause this, when the clock is set back an hour, as can lack of disk space, although that is an issue that I haven't seen lately.
Forum: LIVE PLC Questions And Answers June 9th, 2018, 10:23 PM
Replies: 18
Views: 1,024
Posted By Bit_Bucket_07
Yep. "AND the output AND NOT the output" works...

Yep. "AND the output AND NOT the output" works for AlwayOff, while "Not AlwaysOff" works for AlwaysOn.
Forum: LIVE PLC Questions And Answers June 9th, 2018, 05:23 PM
Replies: 18
Views: 1,024
Posted By Bit_Bucket_07
Not every PLC has an AlwaysOn or AlwaysOff bit....

Not every PLC has an AlwaysOn or AlwaysOff bit. Besides, there's no confusion as to why my run permissive bit is programmed to be always on. The rung comment clearly states that there are no...
Forum: LIVE PLC Questions And Answers June 8th, 2018, 10:29 PM
Replies: 14
Views: 449
Posted By Bit_Bucket_07
Maybe not "elegant", but simple and effective. A...

Maybe not "elegant", but simple and effective. A load resistor on the DI would also work.
Forum: LIVE PLC Questions And Answers June 8th, 2018, 05:29 PM
Replies: 18
Views: 1,024
Posted By Bit_Bucket_07
I've done this is motor logic. I have a template...

I've done this is motor logic. I have a template that includes a "Run Permissive" output both for interlocks and for displaying "Ready" status on an HMI. For motors that have no required interlocks,...
Forum: LIVE PLC Questions And Answers June 8th, 2018, 11:51 AM
Replies: 2
Views: 237
Posted By Bit_Bucket_07
As a general rule, I try to avoid doing any logic...

As a general rule, I try to avoid doing any logic in an HMI that could instead be done in the PLC. That said, I'm not obsessive about it when HMI scripting obviously offers the most efficient method...
Forum: LIVE PLC Questions And Answers June 8th, 2018, 10:19 AM
Replies: 20
Views: 778
Posted By Bit_Bucket_07
The only problem I see with inferring air flow...

The only problem I see with inferring air flow due to normal current draw is that a mechanical issue (such as a failing bearing) could be restricting airflow without dropping the fan amps.
Forum: LIVE PLC Questions And Answers June 7th, 2018, 12:09 AM
Replies: 2
Views: 270
Posted By Bit_Bucket_07
VPNFilter attacks SCADA systems

VPNFilter (https://en.wikipedia.org/wiki/VPNFilter)

Rebooting alone isn't adequate. Update your firmware. Reset your router. This Russian malware might have already infected as many as 1,000,000...
Forum: LIVE PLC Questions And Answers June 6th, 2018, 01:28 PM
Replies: 7
Views: 405
Posted By Bit_Bucket_07
Seems like a bad idea to fuse the primary side of...

Seems like a bad idea to fuse the primary side of the transformer with fast acting Type J fuses. I'd put those on the secondary side. Ideally, you'd want to limit the primary side fuses to 125% of...
Forum: LIVE PLC Questions And Answers June 6th, 2018, 08:56 AM
Replies: 3
Views: 219
Posted By Bit_Bucket_07
With some Wonderware Servers, a special item name...

With some Wonderware Servers, a special item name is required in order to access Real data types. I know that this is true of GE and Modicon Servers.
Forum: LIVE PLC Questions And Answers June 5th, 2018, 11:37 AM
Replies: 5
Views: 405
Posted By Bit_Bucket_07
Memorizing resistor color codes is what led me to...

Memorizing resistor color codes is what led me to always choose violet over purple. Violet gives willingly. ;)
Forum: LIVE PLC Questions And Answers June 5th, 2018, 11:32 AM
Replies: 4
Views: 168
Posted By Bit_Bucket_07
Corning UniCam...

Corning UniCam (https://www.corning.com/worldwide/en/products/communication-networks/products/unicam-connectors-resource-center.html) connectors don't require glue or polishing.
Forum: LIVE PLC Questions And Answers June 4th, 2018, 09:43 PM
Replies: 5
Views: 405
Posted By Bit_Bucket_07
I don't know about the standards, but I've always...

I don't know about the standards, but I've always used BK and BU, just to avoid using BL.
Showing results 1 to 25 of 500

 
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