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Search: Posts Made By: OkiePC
Forum: LIVE PLC Questions And Answers July 18th, 2018, 03:12 AM
Replies: 3
Views: 191
Posted By OkiePC
I don't think all the wires you need are present...

I don't think all the wires you need are present in the 1761-CBL-PM02 if you intend to use RS-485. Buy a 1761-NC01 and make life easy.

Also when you set up the channel, pick the option RS-485 No...
Forum: LIVE PLC Questions And Answers July 16th, 2018, 01:52 PM
Replies: 2
Views: 141
Posted By OkiePC
f2 - f1 would be differential pressure. (f1 +...

f2 - f1 would be differential pressure. (f1 + f2) / 2 would be average pressure
Forum: LIVE PLC Questions And Answers July 16th, 2018, 12:20 PM
Replies: 8
Views: 247
Posted By OkiePC
What PLC?

What PLC?
Forum: LIVE PLC Questions And Answers July 12th, 2018, 12:27 PM
Replies: 10
Views: 302
Posted By OkiePC
Probably not, but I suppose if there is a card...

Probably not, but I suppose if there is a card that only acts up when called to do something by the program it could be a factor. Backplane failures are pretty rare, but hard to figure out and they...
Forum: LIVE PLC Questions And Answers July 12th, 2018, 08:36 AM
Replies: 6
Views: 213
Posted By OkiePC
Is the devicenet cable possibly picking up noise?...

Is the devicenet cable possibly picking up noise? When I have seen this with bucket mounted drives on D-net, it usually affected multiple drives.

I have also seen problem crop up when there is a...
Forum: LIVE PLC Questions And Answers July 12th, 2018, 08:26 AM
Replies: 6
Views: 135
Posted By OkiePC
It is always a good idea to share the complete...

It is always a good idea to share the complete catalog number when dealing with Panelview problems. That error is common when communication is lost but may or may not be due to an issue with the...
Forum: LIVE PLC Questions And Answers July 11th, 2018, 05:22 PM
Replies: 7
Views: 327
Posted By OkiePC
That reminds me of the time I de-greased my Fluke...

That reminds me of the time I de-greased my Fluke with Solvent Flux Remover. The can looked just like the contact cleaner I thought I was using. It melted the buttons and the dial and stuck them to...
Forum: LIVE PLC Questions And Answers July 11th, 2018, 10:01 AM
Replies: 1
Views: 109
Posted By OkiePC
You can export, modify and then import. The...

You can export, modify and then import. The System ID field, is where you want to be careful not to overwrite one already in use. If I remember right, when I did this, I just used numbers for the...
Forum: LIVE PLC Questions And Answers July 9th, 2018, 05:55 PM
Replies: 25
Views: 881
Posted By OkiePC
I didn't think to mention it, but Helliana...

I didn't think to mention it, but Helliana reminds me that you will need a DH485 adapter to communicate with that old SLC. The RJ45 port is NOT Ethernet and can fry your PC NIC if you plug it into...
Forum: LIVE PLC Questions And Answers July 9th, 2018, 02:13 PM
Replies: 5
Views: 172
Posted By OkiePC
What model is your Micrologix? It should...

What model is your Micrologix?

It should support the SCP instruction which can let you take the raw analog values and rescale and invert the slope all in one easy to understand instruction.

For...
Forum: LIVE PLC Questions And Answers July 9th, 2018, 02:12 PM
Replies: 25
Views: 881
Posted By OkiePC
Your best bet is going to be to "rent" someone...

Your best bet is going to be to "rent" someone with RSLogix500 software to perform the download. If you have a memory module they can also perform the Store to EPROM function needed. I would also...
Forum: LIVE PLC Questions And Answers July 7th, 2018, 08:15 AM
Replies: 10
Views: 483
Posted By OkiePC
There was a situation that could generate that...

There was a situation that could generate that alarm if the CPU was originally programmed with a certain 3rd party software...I forget the details.
Forum: LIVE PLC Questions And Answers July 6th, 2018, 05:24 PM
Replies: 10
Views: 483
Posted By OkiePC
If the Panelview can talk to it serially, then...

If the Panelview can talk to it serially, then you should be able to do it that way too. Can you dig into the details of the Panelview comms settings. Maybe there is a difference between what is...
Forum: LIVE PLC Questions And Answers July 6th, 2018, 05:22 PM
Replies: 5
Views: 266
Posted By OkiePC
You should interlock the messages so that they...

You should interlock the messages so that they occur as fast as possible but not at the same time. Some additional delay may be useful too, since some Modbus RTU slave devices could still be...
Forum: LIVE PLC Questions And Answers July 5th, 2018, 06:04 PM
Replies: 13
Views: 669
Posted By OkiePC
FTP is simple and efficient and can be handled...

FTP is simple and efficient and can be handled all within a company LAN. Red Lion HMIs support FTP for storage and retrieval of logged data and that is how I most often use it.
Forum: LIVE PLC Questions And Answers July 3rd, 2018, 11:08 PM
Replies: 39
Views: 3,358
Posted By OkiePC
I've used both, and will use the Stridelinx going...

I've used both, and will use the Stridelinx going forward. It's less expensive and does everything we need. I noticed the latest firmware update allowed me to access the devices behind it without...
Forum: LIVE PLC Questions And Answers July 3rd, 2018, 04:06 PM
Replies: 7
Views: 306
Posted By OkiePC
Just guessing, but it looks like your device type...

Just guessing, but it looks like your device type is an Allen Bradley PLC based on the bottom section of that dialog box. Since you are using a memory type "N", the software may not let you pick...
Forum: LIVE PLC Questions And Answers July 3rd, 2018, 04:01 PM
Replies: 2
Views: 115
Posted By OkiePC
Is this it? ...

Is this it?

http://www.autotechcontrols.net/resolvers/resolvers-size40.htm

A resolver is a transformer with a rotating winding and a fixed winding and uses an ac voltage to measure the angle......
Forum: LIVE PLC Questions And Answers July 3rd, 2018, 05:15 AM
Replies: 3
Views: 255
Posted By OkiePC
In my opinion, it would be very worthwhile to...

In my opinion, it would be very worthwhile to edit the PLC code to get your HMI data organized into compact groups.

It has been my experience that if these alarm tags are held on for more than...
Forum: LIVE PLC Questions And Answers July 1st, 2018, 12:52 PM
Replies: 19
Views: 835
Posted By OkiePC
The trending on a Red Lion is the best imho. ...

The trending on a Red Lion is the best imho.

Nobody makes a worse HMI than A/B imho.

I would certainly choose C-More over PainelView, but my preference is always Red Lion.
Forum: LIVE PLC Questions And Answers July 1st, 2018, 12:40 PM
Replies: 3
Views: 255
Posted By OkiePC
Yes, the built in logging utilizes a caching...

Yes, the built in logging utilizes a caching feature to minimize the number of writes to the SD card and improve its longevity.

If you "roll your own" logging, the caching does not take effect.
...
Forum: LIVE PLC Questions And Answers June 30th, 2018, 08:59 PM
Replies: 9
Views: 355
Posted By OkiePC
Relays are good for about a half million cycles...

Relays are good for about a half million cycles under normal loads and then they will stick, or hesitate.

You should be able to test the relay in question to ensure it is working right. I once...
Forum: LIVE PLC Questions And Answers June 29th, 2018, 05:08 AM
Replies: 8
Views: 346
Posted By OkiePC
I agree with all of the above. Also, if I...

I agree with all of the above.

Also, if I simplify the calculation in a PLC by using a simple scale factor, I like to put the formula in a rung comment so future readers (usually me) will know...
Forum: LIVE PLC Questions And Answers June 29th, 2018, 05:06 AM
Replies: 28
Views: 694
Posted By OkiePC
I never use continuous tasks except for my very...

I never use continuous tasks except for my very first one back around 2001. I make all of the normal tasks periodic. I never had an issue with a oneshot not working right. I have only done less...
Forum: LIVE PLC Questions And Answers June 28th, 2018, 06:11 AM
Replies: 6
Views: 318
Posted By OkiePC
+1 for Filezilla. They have a server and a...

+1 for Filezilla. They have a server and a client (separate downloads). With their server, you get really good detailed diagnostics. I haven't used the Filezilla Client enough to know what it...
Showing results 1 to 25 of 500

 
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