You are not registered yet. Please click here to register!


 
 
plc storereviewsdownloads
This board is for PLC Related Q&A ONLY. Please DON'T use it for advertising, etc.
 
Try our online PLC Simulator- FREE.  Click here now to try it.

---------->>>>>Get FREE PLC Programming Tips

New Here? Please read this important info!!!


Go Back   PLCS.net - Interactive Q & A > Search Forums

Showing results 1 to 5 of 5
Search took 0.00 seconds.
Search: Posts Made By: Pete.S.
Forum: LIVE PLC Questions And Answers December 18th, 2017, 09:32 PM
Replies: 50
Views: 2,803
Posted By Pete.S.
@Daba, Some of what you say is true and some used...

@Daba, Some of what you say is true and some used to be true but isn't anymore.

"Control system" is ambiguous because nowadays we have safety PLCs that can do both the actual control and the...
Forum: LIVE PLC Questions And Answers December 18th, 2017, 06:39 PM
Replies: 50
Views: 2,803
Posted By Pete.S.
I did also try to make that point because it's...

I did also try to make that point because it's important.

OP says specialty chemical industry and almost all process industry I've done projects in have both machine safety and process safety to...
Forum: LIVE PLC Questions And Answers December 17th, 2017, 04:41 PM
Replies: 50
Views: 2,803
Posted By Pete.S.
Yes, it's nice to have to have for those reasons,...

Yes, it's nice to have to have for those reasons, I agree, but it has nothing to do with what the e-stop (and other safety functions) must do - protect humans.

The risk assessment that determines...
Forum: LIVE PLC Questions And Answers December 17th, 2017, 03:55 PM
Replies: 50
Views: 2,803
Posted By Pete.S.
Not when it comes to what you need to have. ...

Not when it comes to what you need to have.

In UK/Europe there is the machinery directive and if you look at the EN 13849 standard you'll see that it's all about risk for the human and not the...
Forum: LIVE PLC Questions And Answers December 17th, 2017, 12:12 PM
Replies: 50
Views: 2,803
Posted By Pete.S.
Emergency stops can't be done on the screen. Have...

Emergency stops can't be done on the screen. Have to be real E-stop buttons (not any kind of button). And it has to be hardwired but not just to regular inputs to the PLC. Either a dedicated safety...
Showing results 1 to 5 of 5

 
Forum Jump

All times are GMT -5. The time now is 11:27 AM.


.