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Search: Posts Made By: James Mcquade
Forum: LIVE PLC Questions And Answers Yesterday, 06:33 PM
Replies: 6
Views: 155
Posted By James Mcquade
i will admit that i am no expert, any device of...

i will admit that i am no expert, any device of good size in motion must have a slow down curve before it stops.
you have a large steel disk, lets say 500 pounds rotating at 200 rpm.
you cannot...
Forum: LIVE PLC Questions And Answers Yesterday, 06:20 PM
Replies: 18
Views: 528
Posted By James Mcquade
I agree with ASF and rdrast. Not only would i...

I agree with ASF and rdrast.
Not only would i get that in writing and signed off by the local rep manager, i would also get the regional manager to sign off on it as well.

WARNING !
do not tell...
Forum: LIVE PLC Questions And Answers April 13th, 2021, 09:33 PM
Replies: 9
Views: 896
Posted By James Mcquade
do not do as instructed. i agree that this will...

do not do as instructed.
i agree that this will really corrupt your hard drive.
you erase the files, then rename the folder.
when you reboot, who knows what the program in the system will do....
Forum: LIVE PLC Questions And Answers April 12th, 2021, 10:01 PM
Replies: 14
Views: 771
Posted By James Mcquade
I like the pushbutton idea. You still MUST...

I like the pushbutton idea.
You still MUST satisfy NFPA 79 - electrical standard for industrial machinery, NFPA 70 - national electric code, light curtain safety standards, AND you MUST have a fail...
Forum: LIVE PLC Questions And Answers April 10th, 2021, 11:10 AM
Replies: 7
Views: 432
Posted By James Mcquade
welcome to the forum. which plc are you...

welcome to the forum.

which plc are you trying to use?
what is your pc operating system?
adobe flashplayer reached its end of life on Dec. 31,2020
google replace flashplayer and you will get...
Forum: LIVE PLC Questions And Answers April 10th, 2021, 11:01 AM
Replies: 44
Views: 1,116
Posted By James Mcquade
i think you are on the right track. adding to...

i think you are on the right track.
adding to that i would do something like this.
move sp to a register, let's say its 65
if a hi hi warning occurs, subtract 5 from the setpoint and move into a...
Forum: LIVE PLC Questions And Answers April 10th, 2021, 10:11 AM
Replies: 11
Views: 630
Posted By James Mcquade
i think the subnet mask should be 255.255.0.0. ...

i think the subnet mask should be 255.255.0.0. this is what we do at work so we can see everything in the 192.168.xxx.xxx range. if i am incorrect, someone please correct me. i will get in touch...
Forum: LIVE PLC Questions And Answers April 10th, 2021, 09:57 AM
Replies: 44
Views: 1,116
Posted By James Mcquade
please explain what you are doing a little...

please explain what you are doing a little better.
i followed everything until you stated
"The question I had is how is the best way to
MOV the last Setpoint to the valve after the process is...
Forum: LIVE PLC Questions And Answers April 10th, 2021, 09:48 AM
Replies: 6
Views: 404
Posted By James Mcquade
please zip your program and post it so we can...

please zip your program and post it so we can look at it and make suggestions.
james
Forum: LIVE PLC Questions And Answers April 9th, 2021, 05:04 PM
Replies: 6
Views: 404
Posted By James Mcquade
Welcome to the forum. we are more than willing...

Welcome to the forum.
we are more than willing to help, but you need to post your work (zip it first, forum rules) and we will help.

For any given homework assignment or task at work, you must...
Forum: LIVE PLC Questions And Answers April 9th, 2021, 12:57 PM
Replies: 21
Views: 700
Posted By James Mcquade
The virtulization of the machine will depend on...

The virtulization of the machine will depend on what type of license file he has.
the old evris or the factory talk typ. i would try to virtualize the system if possible just to get a good backup. ...
Forum: LIVE PLC Questions And Answers April 9th, 2021, 12:48 PM
Replies: 9
Views: 313
Posted By James Mcquade
since you have that many, may i suggest the...

since you have that many, may i suggest the following.

use a cell phone or mirror to take a picture or read the reflection from the mirror of the part number.
group the drives into horsepower...
Forum: LIVE PLC Questions And Answers April 8th, 2021, 09:02 PM
Replies: 3
Views: 258
Posted By James Mcquade
we use brady wire labels and also automation...

we use brady wire labels and also automation direct plastic wire numbers that slip on wires.
regards,
james
Forum: LIVE PLC Questions And Answers April 7th, 2021, 06:20 PM
Replies: 6
Views: 367
Posted By James Mcquade
May i suggest that you add a screen with the...

May i suggest that you add a screen with the details on it in regards to the information you need that is accessible.
james
Forum: LIVE PLC Questions And Answers April 7th, 2021, 06:17 PM
Replies: 14
Views: 926
Posted By James Mcquade
when you say it bonces, just how much? just...

when you say it bonces, just how much?
just because the process is down does not mean that a water valve may not open and allow water flow, that's why i asked how much.
it may be a small valve...
Forum: LIVE PLC Questions And Answers April 7th, 2021, 11:11 AM
Replies: 7
Views: 1,331
Posted By James Mcquade
several issues to deal with. the original...

several issues to deal with.
the original contract, exactly what was in the contract? be very detailed, you don't have to tell us, just be detailed in your reading.
change orders, for past change...
Forum: LIVE PLC Questions And Answers April 6th, 2021, 08:56 PM
Replies: 3
Views: 222
Posted By James Mcquade
i cannot say about UL508, but i can say that NEC...

i cannot say about UL508, but i can say that NEC 70, NFPA79 probably does not allow this.

Now then, what is the purpose of panel c?
what is in panel c?
how do you determine where panel A power...
Forum: LIVE PLC Questions And Answers April 6th, 2021, 08:42 PM
Replies: 14
Views: 771
Posted By James Mcquade
Welcome to the forum. Sorry, i don't think...

Welcome to the forum.

Sorry, i don't think what you suggest is allowed.
a safety light curtain cannot be used to start an automatic cycle, it requires human intervention. i got into the same...
Forum: LIVE PLC Questions And Answers April 6th, 2021, 02:10 PM
Replies: 14
Views: 926
Posted By James Mcquade
i have had this issue before. is the analog...

i have had this issue before.

is the analog cable shielded and the drain wire grounded at the analog input card only?
check ALL wire terminations, from the source terminals to the input card...
Forum: LIVE PLC Questions And Answers April 5th, 2021, 08:51 AM
Replies: 11
Views: 661
Posted By James Mcquade
Saffa, we don't put fuses inside the drive. ...

Saffa,

we don't put fuses inside the drive.
from the main power strip > fuses or circuit breakers (fused disconnects) > wire to vfd > vfd > fuses > wire to motor> field disconnect > wire to motor...
Forum: LIVE PLC Questions And Answers April 3rd, 2021, 11:45 PM
Replies: 11
Views: 661
Posted By James Mcquade
at my last plant, we used hundreds of AB vfd's...

at my last plant, we used hundreds of AB vfd's with a non fused disconnect and an aux contact that went to the plc to tell us when it was in the off position. it was on the load side. fuses were...
Forum: LIVE PLC Questions And Answers April 3rd, 2021, 11:40 PM
Replies: 18
Views: 797
Posted By James Mcquade
Patience, it is the weekend. james

Patience,
it is the weekend.
james
Forum: LIVE PLC Questions And Answers April 3rd, 2021, 06:34 PM
Replies: 15
Views: 1,018
Posted By James Mcquade
older systems may not have the guided safety...

older systems may not have the guided safety relays, BUT newer systems Must have a safety relay. i don't have my books available with me.
the safety relay which has guided contacts helps prevent...
Forum: LIVE PLC Questions And Answers April 3rd, 2021, 06:23 PM
Replies: 8
Views: 514
Posted By James Mcquade
i do not recommend putting your license on a...

i do not recommend putting your license on a server if there is ANY possibility of you not seeing the network on your WIFI system.
also, if the server is down for maintenance or has to be rebooted,...
Forum: LIVE PLC Questions And Answers April 1st, 2021, 03:24 PM
Replies: 5
Views: 333
Posted By James Mcquade
is this an out of the box plc or has the system...

is this an out of the box plc or has the system been powered off for a while?
the blinking light may mean that the internal capacitors are not charged up.
if that is the issue, i cannot remember...
Showing results 1 to 25 of 500

 
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