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Search: Posts Made By: Firejo
Forum: LIVE PLC Questions And Answers Today, 03:56 PM
Replies: 3
Views: 97
Posted By Firejo
The CIP paths have changed and that (with my...

The CIP paths have changed and that (with my experience, as little as it is) sometimes causes problems and sometimes doesn't. The other big change for me is the way the discrete I/O is structured...
Forum: LIVE PLC Questions And Answers December 6th, 2019, 01:19 PM
Replies: 12
Views: 976
Posted By Firejo
Posting a question on someone else's thread is...

Posting a question on someone else's thread is frowned upon. I would encourage you to start your own thread. You're liable to get a better response.
Forum: LIVE PLC Questions And Answers December 6th, 2019, 01:14 PM
Replies: 15
Views: 787
Posted By Firejo
I like the "functional test" option. First,...

I like the "functional test" option.
First, regardless of how the test is done, if there is a failure, the first part of the diagnosis is the same, check the bulb first then go from there. ...
Forum: LIVE PLC Questions And Answers December 6th, 2019, 12:33 PM
Replies: 22
Views: 1,046
Posted By Firejo
I was thinking more along the lines of being able...

I was thinking more along the lines of being able to separate the 600VAC lines from the 24VDC system. If you use a transformer to bring the 600VAC down to 120VAC you could then run the 120VAC lines...
Forum: LIVE PLC Questions And Answers December 5th, 2019, 03:58 PM
Replies: 22
Views: 1,046
Posted By Firejo
The amount of isolation needed vs. the demand (or...

The amount of isolation needed vs. the demand (or lack there of) probably means stepping down with a transformer to 120 or 240 is your best bet. I could make an argument that for safety reasons...
Forum: LIVE PLC Questions And Answers December 5th, 2019, 03:54 PM
Replies: 11
Views: 3,009
Posted By Firejo
Tacking on to the end of someone else's thread is...

Tacking on to the end of someone else's thread is frowned upon plus this thread is over 6 years old so a lot of people will ignore it. You need to start your own thread with your question.
Good...
Forum: LIVE PLC Questions And Answers November 26th, 2019, 06:48 PM
Replies: 8
Views: 579
Posted By Firejo
One of the pieces of the puzzle that's still...

One of the pieces of the puzzle that's still missing is what is providing the analog feedback I.E. where does the analog signal that is connected to the IE2C come from? If it is a mechanical "sweep...
Forum: LIVE PLC Questions And Answers November 26th, 2019, 06:26 PM
Replies: 7
Views: 461
Posted By Firejo
It sounds like you are looking for someone to do...

It sounds like you are looking for someone to do the work for you and/or just show you what to do step by step. This site frowns on that. We would rather help you learn how to do the work...
Forum: LIVE PLC Questions And Answers November 26th, 2019, 09:43 AM
Replies: 8
Views: 579
Posted By Firejo
It doesn't really tell us anything without...

It doesn't really tell us anything without knowing what we are looking at I.E. what is the oscilloscope attached to?
Forum: LIVE PLC Questions And Answers November 25th, 2019, 10:34 AM
Replies: 7
Views: 467
Posted By Firejo
Adding a relay to cycle power can actually cause...

Adding a relay to cycle power can actually cause more problems down the road. Most devices that have "chips" in them have limited life cycles and constantly cycling power shortens their life. ...
Forum: LIVE PLC Questions And Answers November 25th, 2019, 10:29 AM
Replies: 7
Views: 467
Posted By Firejo
Is it communicating through a switch? I've got a...

Is it communicating through a switch? I've got a switch on a test panel with several gateway's (including an RTA) and they all stop communicating after several hours. I found the switch I was using...
Forum: LIVE PLC Questions And Answers November 25th, 2019, 10:21 AM
Replies: 8
Views: 579
Posted By Firejo
Without knowing anything about the sensor...

Without knowing anything about the sensor reporting the valves position;
If the valve position sensor is a sweeping contact type, and if the valve being fully open (100%) is common, then I'd look to...
Forum: LIVE PLC Questions And Answers November 25th, 2019, 10:06 AM
Replies: 6
Views: 189
Posted By Firejo
Wire can wick moisture over time and eventually...

Wire can wick moisture over time and eventually that will cause the resistance value to change. This typically only becomes noticeable in high humidity environments and in most applications won't...
Forum: LIVE PLC Questions And Answers November 25th, 2019, 09:59 AM
Replies: 16
Views: 534
Posted By Firejo
Not all CJC's are created equal. If the 1769-IT6...

Not all CJC's are created equal. If the 1769-IT6 is calling for a specific CJC that's the one you must use. Removing it, in some cases, will "deploy" a default value which can get you pretty close...
Forum: LIVE PLC Questions And Answers November 22nd, 2019, 01:01 PM
Replies: 25
Views: 2,374
Posted By Firejo
A view from above

A view from above
Forum: LIVE PLC Questions And Answers November 14th, 2019, 08:00 PM
Replies: 4
Views: 1,089
Posted By Firejo
You need to start another thread. This one is...

You need to start another thread. This one is two years old and most people won't even look at it.
Forum: LIVE PLC Questions And Answers November 13th, 2019, 04:18 PM
Replies: 5
Views: 373
Posted By Firejo
It also looks like the 1794-IF8H has isolated...

It also looks like the 1794-IF8H has isolated channels. It's not clear if the IE does as well but that would be worth looking up in the data sheet or manual.
Forum: LIVE PLC Questions And Answers November 13th, 2019, 02:38 PM
Replies: 5
Views: 373
Posted By Firejo
Is there a question in there somewhere?

Is there a question in there somewhere?
Forum: LIVE PLC Questions And Answers November 13th, 2019, 09:53 AM
Replies: 27
Views: 1,190
Posted By Firejo
If the remote location where you want the new...

If the remote location where you want the new "E-Stop" located is an hour away I wouldn't consider it an "E-Stop". I would imagine whatever the safety codes are in your location they probably would...
Forum: LIVE PLC Questions And Answers November 11th, 2019, 09:49 AM
Replies: 14
Views: 1,060
Posted By Firejo
Which CompactLogix? 1769's and 5069's have...

Which CompactLogix? 1769's and 5069's have different file structures and the I/O addressing is different.
Forum: LIVE PLC Questions And Answers November 7th, 2019, 10:51 AM
Replies: 28
Views: 958
Posted By Firejo
When an RS232 port is idle, its transmit line...

When an RS232 port is idle, its transmit line voltage is being held to its negative state (-3 to -15V). When it starts to transmit it switches to a positive state (3 to 15V) and then starts cycling...
Forum: LIVE PLC Questions And Answers November 7th, 2019, 10:03 AM
Replies: 5
Views: 313
Posted By Firejo
RSLinx will need an EDS file for the FANUC...

RSLinx will need an EDS file for the FANUC controller before it will recognize what it is. That doesn't mean you can't make it talk with the L32E but RSLinx won't be able to communicate with it.
Forum: LIVE PLC Questions And Answers November 6th, 2019, 12:08 PM
Replies: 28
Views: 958
Posted By Firejo
If it's truly RS232 then having multiple slave...

If it's truly RS232 then having multiple slave devices on one communications cable won't work. RS232 uses transmit and receive lines with the transmit of the master going to the receive of the slave...
Forum: LIVE PLC Questions And Answers November 5th, 2019, 03:42 PM
Replies: 28
Views: 958
Posted By Firejo
Not to be a "stickler" but that's not quite true....

Not to be a "stickler" but that's not quite true. RS232 is a communications layer and while the original standard was designed for full duplex protocols it didn't stick and there are plenty of...
Forum: LIVE PLC Questions And Answers October 28th, 2019, 10:43 AM
Replies: 16
Views: 1,685
Posted By Firejo
P.S. The hub isn't required but if you need...

P.S. The hub isn't required but if you need something in between the PC's Ethernet port and the 820 you can't use a switch as it might block the TCP traffic which is what you need to find the IP...
Showing results 1 to 25 of 500

 
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