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Search: Posts Made By: rdrast
Forum: LIVE PLC Questions And Answers July 13th, 2018, 04:47 AM
Replies: 18
Views: 668
Posted By rdrast
The point is, if you cannot control physical...

The point is, if you cannot control physical access to [The PLC, The Server, The Core Network Switch], you cannot control access at all, and your system is completely vulnerable to any form of attack.
Forum: LIVE PLC Questions And Answers July 12th, 2018, 07:05 AM
Replies: 10
Views: 279
Posted By rdrast
Could be a backplane issue. Have you changed the...

Could be a backplane issue. Have you changed the backplane?
Forum: LIVE PLC Questions And Answers July 12th, 2018, 07:02 AM
Replies: 18
Views: 668
Posted By rdrast
Put the keyswitch in RUN mode, and remove the...

Put the keyswitch in RUN mode, and remove the key.
And prevent physical access to the processor (cabinet door locks for example).
Forum: LIVE PLC Questions And Answers July 8th, 2018, 11:42 PM
Replies: 2
Views: 260
Posted By rdrast
Use a UDT to hold your messages. Make a member...

Use a UDT to hold your messages.
Make a member of the UDT an index.
The sending controller sends out a message with the target index, the receiver can check the index and handle it appropriately. ...
Forum: LIVE PLC Questions And Answers June 29th, 2018, 04:01 AM
Replies: 2
Views: 261
Posted By rdrast
FTView does absolutely nothing automatically. ...

FTView does absolutely nothing automatically.
If you want a tag in the database, you must add it manually.
Forum: LIVE PLC Questions And Answers June 29th, 2018, 03:59 AM
Replies: 12
Views: 25,248
Posted By rdrast
OSR also directly and clearly exposes both the...

OSR also directly and clearly exposes both the storage and output bits, and can be easily re-triggered by resetting the storage bit elsewhere in the program.
Forum: LIVE PLC Questions And Answers June 29th, 2018, 03:30 AM
Replies: 8
Views: 332
Posted By rdrast
Same here. When setting up new equipment, we set...

Same here. When setting up new equipment, we set everything up initially just to run at 100% speed, then measure the actual speed, and scale accordingly. All of my HMI screens have a calibrations...
Forum: LIVE PLC Questions And Answers June 29th, 2018, 03:27 AM
Replies: 14
Views: 591
Posted By rdrast
/sigh. I have a two racks full of 5555's, 61's,...

/sigh.
I have a two racks full of 5555's, 61's, and 62's here. Not even worth the trade in against newer parts based on the quote I got from Rockwell, and this company doesn't resell them, so I...
Forum: LIVE PLC Questions And Answers June 29th, 2018, 03:24 AM
Replies: 2
Views: 295
Posted By rdrast
Multiturn encoders are commonly used on CNC...

Multiturn encoders are commonly used on CNC machine beds for positioning, or anywhere really you need an absolute position signal greater than one revolution of the encoder shaft. Many electronic...
Forum: LIVE PLC Questions And Answers June 28th, 2018, 07:52 AM
Replies: 19
Views: 822
Posted By rdrast
I much prefer the C-More panels to most anything...

I much prefer the C-More panels to most anything else currently.
They are simple to program, with just about any PLC, and for the cost are very reliable. I used to use a lot of Red Lion panels, but...
Forum: LIVE PLC Questions And Answers June 27th, 2018, 03:24 AM
Replies: 14
Views: 425
Posted By rdrast
Handle your analog references in the PLC as real...

Handle your analog references in the PLC as real units, and only scale them as you actually pass them off to the analog output module.


If you want 0 to 5 VDC, use a real number, and just...
Forum: LIVE PLC Questions And Answers June 26th, 2018, 08:19 AM
Replies: 4
Views: 302
Posted By rdrast
What speed is the auger running at? Could it be...

What speed is the auger running at? Could it be binding?
Have you checked to see at the drive that it is actually running at the commanded speed?
Forum: LIVE PLC Questions And Answers June 26th, 2018, 04:31 AM
Replies: 8
Views: 294
Posted By rdrast
Warning about "Test Mode"... Test mode...

Warning about "Test Mode"...


Test mode can only be enabled while online with a processor. It runs the program, and processes inputs, but disables all outputs.



Unless you are sure of what...
Forum: LIVE PLC Questions And Answers June 21st, 2018, 03:27 AM
Replies: 1
Views: 137
Posted By rdrast
Use the seconds part of the real time clock. As...

Use the seconds part of the real time clock.
As long as your coil is on, as whenever the seconds part of the RTC changes, increment a counter.
Forum: LIVE PLC Questions And Answers June 20th, 2018, 03:37 AM
Replies: 3
Views: 270
Posted By rdrast
Just delete the ControlNet IO, and put it back in...

Just delete the ControlNet IO, and put it back in as Ethernet/IP IO. You will have to re-address remote rack IO, but it isn't that big a deal, and if thought through, you can do global substitutions...
Forum: LIVE PLC Questions And Answers June 20th, 2018, 03:34 AM
Replies: 11
Views: 283
Posted By rdrast
Because it is much easier to do data handling in...

Because it is much easier to do data handling in Advanced (or just about any other PC based HMI) ?


---


I know .csv formats are very popular for data export, but manipulation and reporting...
Forum: LIVE PLC Questions And Answers June 17th, 2018, 10:08 PM
Replies: 2
Views: 227
Posted By rdrast
Is there an actual login for the user in the...

Is there an actual login for the user in the database?
Use SQL Management Studio to try to connect to the DB with the same username/pass you tried.
Forum: LIVE PLC Questions And Answers June 13th, 2018, 09:12 AM
Replies: 15
Views: 466
Posted By rdrast
^^^ This. This has nothing to do with...

^^^ This.


This has nothing to do with your rack, it is a communications fault between the PLC CPU and the HMI. That is all it is.


I'm actually surprised that you can even read the output...
Forum: LIVE PLC Questions And Answers June 13th, 2018, 05:30 AM
Replies: 6
Views: 312
Posted By rdrast
FTView ME is NOT equivalent to FTView SE Station,...

FTView ME is NOT equivalent to FTView SE Station, or FTView SE Network Distributed, or FTView SE Distributed. They are all vaguely similar, but different platforms.


ME and SE Station can run...
Forum: LIVE PLC Questions And Answers June 11th, 2018, 12:57 AM
Replies: 16
Views: 713
Posted By rdrast
Just saying, using a serious programming editor,...

Just saying, using a serious programming editor, rather than Excel, can make this much much simpler.


I use UltraEdit/UltraEdit Studio for all of my text, xml, csv and other files.
Forum: LIVE PLC Questions And Answers June 11th, 2018, 12:49 AM
Replies: 18
Views: 1,006
Posted By rdrast
A problem with this, is someone later on can...

A problem with this, is someone later on can re-define your always on/off bits somewhere else in the program.


It is safer to use the PLC Specific dedicated bits, such as the system "Always Off...
Forum: LIVE PLC Questions And Answers June 11th, 2018, 12:41 AM
Replies: 6
Views: 312
Posted By rdrast
Do you have a View Server? The client only acts...

Do you have a View Server? The client only acts as a glorified (and expensive) web browser that connects to a view server.
Forum: LIVE PLC Questions And Answers June 5th, 2018, 03:49 AM
Replies: 5
Views: 264
Posted By rdrast
If you must work offline, edit your program...

If you must work offline, edit your program offline, export the programs/routines you need, then just import them online.
Forum: LIVE PLC Questions And Answers June 5th, 2018, 03:44 AM
Replies: 19
Views: 1,353
Posted By rdrast
There is nothing wrong with modeling the...

There is nothing wrong with modeling the equipment. But don't do it with 3d graphic tanks and pipes and valves. Use simple lines, with arrows to indicate process directions. And don't put every...
Forum: LIVE PLC Questions And Answers June 1st, 2018, 03:26 AM
Replies: 13
Views: 481
Posted By rdrast
Put a 500 ohm resistor across the output of a...

Put a 500 ohm resistor across the output of a 4-20 sensor, read it as 2-10VDC.
Showing results 1 to 25 of 500

 
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