SLC RTO Timers quick query

Outrage

Member

O

Join Date

Jul 2006

Location

Nottinghamshire

Posts

173

• Sep 11, 2008

• #1

Hi all, when using an RTO, if the rung goes false does the TT bit stay on or go off? the help in RSLogix is a bit sketchy regarding the TT bit for RTO!

Cheers,

Lee

 

Bob O

Member

B

Join Date

May 2003

Location

Posts

1,873

• Sep 11, 2008

• #2

I just tested that on a ML1100 and the TT drops out when the rung goes false.

HTH

 

Outrage

Member

OP

O

Join Date

Jul 2006

Location

Nottinghamshire

Posts

173

• Sep 11, 2008

• #3

Hi Bob, thanks for that!
Thought it made sense for the TT bit to do that - it's not finished counting (DN) but with no power its not timing either.

Cheers,

Lee

 

Bob O

Member

B

Join Date

May 2003

Location

Posts

1,873

• Sep 11, 2008

• #4

You're Welcome.

 

TConnolly

Lifetime Supporting Member

Join Date

Apr 2005

Location

Salt Lake City

Posts

6,152

• Sep 11, 2008

• #5

You can download an instruction set reference manual from AB's literature library.
http://literature.rockwellautomation.com/idc/groups/literature/documents/rm/1747-rm001_-en-p.pdf

A chart showing the various timer bit states is on page 2-12.

 

Outrage

Member

OP

O

Join Date

Jul 2006

Location

Nottinghamshire

Posts

173

• Sep 11, 2008

• #6

Nice one Alaric, i'll save that one for future reference - Rockwells website is painfully slow!

Cheers,

Lee

 

TConnolly

Lifetime Supporting Member

Join Date

Apr 2005

Location

Salt Lake City

Posts

6,152

• Sep 11, 2008

• #7

I've noticed that its been slow the last couple of days. Thats not normally the case.

 

Tharon

Member

T

Join Date

Jan 2007

Location

Other

Posts

1,430

• Sep 11, 2008

• #8

Alaric said:

I've noticed that its been slow the last couple of days. Thats not normally the case.

Click to expand...

Someone forgot to feed the hamsters over the weekend.

 

Outrage

Member

OP

O

Join Date

Jul 2006

Location

Nottinghamshire

Posts

173

• Sep 11, 2008

• #9

Glad its not down to the antique communications that we seem to still be running on over this side of the pond, At times I'm sure somewhere in the loop theres a bloke sat with a morse code set tapping away!