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Search: Posts Made By: Steve Kemp
Forum: LIVE PLC Questions And Answers November 7th, 2006, 03:42 AM
Replies: 11
Views: 1,831
Posted By Steve Kemp
Nice little earner or shortcut to court?

One for the safety gurus...
I've been asked to design and build the controls for a hydraulic shear. It's a floor-mounted, foot-pedal operated machine using a cylinder to operate a single (upper)...
Forum: LIVE PLC Questions And Answers October 3rd, 2006, 03:45 AM
Replies: 1
Views: 943
Posted By Steve Kemp
Omron servos

Hi all. Currently trying to breathe some life into a new R7M series servo connected to a Smartstep drive. It's the 750W version (no brake). "Out of the carton" the rotor was locked (with no...
Forum: LIVE PLC Questions And Answers September 29th, 2006, 07:07 AM
Replies: 4
Views: 2,702
Posted By Steve Kemp
Sounds right to me. If I follow you, I'd need to...

Sounds right to me. If I follow you, I'd need to latch the "on" state for the process stage in question and then gate that state via a difu (when the shift operation is required) into the appropriate...
Forum: LIVE PLC Questions And Answers September 29th, 2006, 05:20 AM
Replies: 4
Views: 2,702
Posted By Steve Kemp
Parallel loading Omron CJ1 shift register

Hi all. Say I'm using address W1 as my starting (and end) words in the SFT(010) instruction; does anyone know whether it's ok to "parallel load" W1 from other sources in the program (set a bit or...
Forum: LIVE PLC Questions And Answers September 22nd, 2006, 04:19 AM
Replies: 79
Views: 6,111
Posted By Steve Kemp
A colleague went to the hospital a couple of days...

A colleague went to the hospital a couple of days back. "What's up?" I asked. "Oh, not much, it's only an explanatory." Well, I guess that -in a subtle way- it probably was, but I don't think that...
Forum: LIVE PLC Questions And Answers July 31st, 2006, 07:36 AM
Replies: 2
Views: 2,290
Posted By Steve Kemp
Thumbs up Thanks, P.d.l. ...and good old Mr. PLC! Steve.

Thanks, P.d.l. ...and good old Mr. PLC! Steve.
Forum: LIVE PLC Questions And Answers July 31st, 2006, 05:03 AM
Replies: 2
Views: 2,290
Posted By Steve Kemp
Question Memory card type for Omron NS HMIs?

Omron offers an "industrial grade" memory card for their NS terminals, (thermal-shock-proof and vibration resistant) but for a single firmware upgrade it's an unnecessary expense, so I want to buy an...
Forum: LIVE PLC Questions And Answers July 27th, 2006, 02:26 AM
Replies: 13
Views: 2,307
Posted By Steve Kemp
Wow, has it really been two years?! BTW, It all...

Wow, has it really been two years?! BTW, It all worked well, complete with dynamic brake module- stops "on a dime"! You can vault through the light guard and safely grab at the two metre belt-driven...
Forum: LIVE PLC Questions And Answers July 17th, 2006, 05:19 AM
Replies: 3
Views: 1,519
Posted By Steve Kemp
SLC data files to Excel?

Hi all. I have 30 "N" files (250 words each) that I'd like to view in an intelligible format. Is there any way of copying the data directly from RSLogix into say, Excel? Thanks, Steve.
Forum: LIVE PLC Questions And Answers July 5th, 2006, 07:27 AM
Replies: 3
Views: 1,808
Posted By Steve Kemp
AJZ, Very good point. Thankyou.

AJZ, Very good point. Thankyou.
Forum: LIVE PLC Questions And Answers July 5th, 2006, 06:33 AM
Replies: 3
Views: 1,808
Posted By Steve Kemp
Monitoring dump valves (pneumatic safety)

Any thoughts on this one? I'm designing the controls for an operator-loaded, light-guard protected hydro-pneumatic press (pneum approach stroke/intensified press stroke). It's a category 4 machine,...
Forum: LIVE PLC Questions And Answers June 15th, 2006, 09:25 AM
Replies: 48
Views: 11,663
Posted By Steve Kemp
Crntlfrk, you're not alone: Poll: 24 Volt...

Crntlfrk, you're not alone:

Poll: 24 Volt Inputs and Grounds (http://www.plctalk.net/qanda/showthread.php?t=13249&highlight=ground+24V)
Steve.

Sorry, that should be cntrlfrk...
Forum: LIVE PLC Questions And Answers May 23rd, 2006, 05:13 AM
Replies: 153
Views: 17,778
Posted By Steve Kemp
Allscott, Mate, look around; read the news;...

Allscott, Mate, look around; read the news; think (if you dare) of the most dispicable, evil thing that could be done to any living thing (including the Earth) and it's been done so many times...
Forum: LIVE PLC Questions And Answers May 12th, 2006, 08:05 AM
Replies: 11
Views: 1,445
Posted By Steve Kemp
Recipe for disaster:

OK, if you insist...

We used to keep a Californian King snake. Fed it ikkle mice (including thawed, frozen ones). One evening: "Oops, forgot to thaw the mice." Snake restless. Pop next door,...
Forum: LIVE PLC Questions And Answers May 3rd, 2006, 08:28 AM
Replies: 3
Views: 1,582
Posted By Steve Kemp
OT from the OT

As LED traffic lights spread across the land, I can't be the only one to notice the appalling sync at the transitions (red-to-amber etc). I could see why a bit of anticipatory craftiness would give...
Forum: LIVE PLC Questions And Answers April 27th, 2006, 01:34 AM
Replies: 5
Views: 1,198
Posted By Steve Kemp
Red face Oops! I'd forgotten to load the "days in the...

Oops! I'd forgotten to load the "days in the month" into the N255 registers...

EDIT: ...or in my case, N10s...
BTW, it must have clearly been an engineering -and not management- decision to...
Forum: LIVE PLC Questions And Answers April 26th, 2006, 11:02 AM
Replies: 5
Views: 1,198
Posted By Steve Kemp
Thumbs up Alaric: Brilliant, thanks. Edit: Hang...

Alaric: Brilliant, thanks.

Edit:

Hang on, are you sure?
Forum: LIVE PLC Questions And Answers April 26th, 2006, 10:01 AM
Replies: 5
Views: 1,198
Posted By Steve Kemp
Mr. Bloke, thanks for the link. Whilst it does...

Mr. Bloke, thanks for the link. Whilst it does deal with power cycling issues in more than one post, I think what I'm after may be buried in there somewhere but beyond my sleuthing abilities! Steve.
Forum: LIVE PLC Questions And Answers April 26th, 2006, 03:21 AM
Replies: 5
Views: 1,198
Posted By Steve Kemp
Week number from SLC status registers??

Hi All. I've got to print a label that includes the current week number as part of the information. My brain's turned to sludge... If I use an incremental system, it's not power-cycle proof, but...
Forum: LIVE PLC Questions And Answers April 25th, 2006, 09:53 AM
Replies: 19
Views: 3,738
Posted By Steve Kemp
Quote: "Where did you get the info for the roof...

Quote: "Where did you get the info for the roof mounted solar unit? Do you like it? Down here in lower AL we have plenty solar heat, just nobody taking advantage of it."

It was already installed...
Forum: LIVE PLC Questions And Answers April 25th, 2006, 07:41 AM
Replies: 19
Views: 3,738
Posted By Steve Kemp
It all started when I drove a nail into an...

It all started when I drove a nail into an upstairs water pipe (honest!). So while the insurance guys had the living room ceiling down, I thought it the ideal time to install some "universal" wiring,...
Forum: LIVE PLC Questions And Answers April 21st, 2006, 06:09 AM
Replies: 3
Views: 1,028
Posted By Steve Kemp
BS-EN Standards for light guarding

Hello All. I'm trying to fight my way through the maze that is health & safety legislation with regard to the automatic re-start of a machine's operation following a light guard breach. Does anyone...
Forum: LIVE PLC Questions And Answers April 7th, 2006, 02:14 AM
Replies: 8
Views: 2,407
Posted By Steve Kemp
Mr. Mode, you're right. We're using the SL-C...

Mr. Mode, you're right. We're using the SL-C range of light guards by Keyence. Both o/p types are present at the receiver connector, making it universal. Buying the appropriate cable (n or p type)...
Forum: LIVE PLC Questions And Answers April 6th, 2006, 10:01 AM
Replies: 8
Views: 2,407
Posted By Steve Kemp
Bob, I've had a print of Jim Rowell's article in...

Bob, I've had a print of Jim Rowell's article in my desk for some time now; yes, it's a good reminder.
Forum: LIVE PLC Questions And Answers April 6th, 2006, 08:32 AM
Replies: 8
Views: 2,407
Posted By Steve Kemp
Light guards: PNP vs NPN & safety

Hi all. It would appear that the japanese "standard" is to use npn devices. I've always used pnp and grounded the 0V of the DC psu at source. However, if these guys are used to everything being...
Showing results 1 to 25 of 122

 
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