RE: Accumulator Block

2001-03-16 Thread Heath, Graham

suggest using the TIM command which returns the number od seconds since
Midnight date I say RTFM.

regds



-Original Message-
From: Loyd Greer [mailto:[EMAIL PROTECTED]]
Sent: 15 March 2001 1:31
To: Foxboro DCS Mail List
Subject: Accumulator Block


Hi to the list.
 I would like to clear (reset) an accumulator block at 0600 every
day with the system clock or TOD. If this can be done, I would appreciate
any suggestions on how to do it.

 Thanks in advance
 Also thanks to Joe Gale for help on a Weather Station Display.
 Loyd Greer
 Great Lakes Chem.


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Re: Accumulator Block

2001-03-16 Thread RJC2


Loyd,  enter the following steps in a Calc block:

TIM gets seconds since midnight
SUB RI01   set RI01 = to seconds from midnight to 0600 = 21600
SSP M01   sets M01 = 1 at 6:00 AM
CLR M01   clears M01 after midnight
IN M01
OSP 1   set  one shot time = to Accumulator block period time
OUT BO01  connect BO01 to the CLEAR parameter of the ACCUM block.
END

Ray Chouinard
Mead Corp






Loyd Greer [EMAIL PROTECTED]@lists.TheCassandraProject.org on 03/14/2001
08:31:06 PM

Please respond to Foxboro DCS Mail List
  [EMAIL PROTECTED]

Sent by:  [EMAIL PROTECTED]


To:   Foxboro DCS Mail List [EMAIL PROTECTED]
cc:

Subject:  Accumulator Block


Hi to the list.
 I would like to clear (reset) an accumulator block at 0600 every
day with the system clock or TOD. If this can be done, I would appreciate
any suggestions on how to do it.

 Thanks in advance
 Also thanks to Joe Gale for help on a Weather Station Display.
 Loyd Greer
 Great Lakes Chem.


---
This list is neither sponsored nor endorsed by the Foxboro Company. All
postings from this list are the work of list subscribers and no warranty
is made or implied as to the accuracy of any information disseminated
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To be removed from this list, send mail to
[EMAIL PROTECTED]
with unsubscribe foxboro in the Subject. Or, send any mail to
[EMAIL PROTECTED]





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RE: Drop resistor on analog input cards

2001-03-16 Thread Hicks, Gaylon F.

Corey,

We installed Rosemount 3051 and 1151 intelligent transmitters with FBM05s
and FBM04s here about 1998.  To make the HART communicator function reliably
with the Foxboro modules in the loop, you need more than 250 ohms loop
impedance.  I think we ended up using about 370 ohms installed locally at
the transmitter panels, and everything worked fine.  We use the HART
communicators locally.

This is a nice simple sledgehammer approach and has worked for us so far.

==
Gaylon Hicks
Tennessee Valley Authority, Browns Ferry Nuclear Plant
Mail Stop PEC-2C
PO Box 2000
Decatur, AL  35609
Phone: (256) 729-7804   Fax:  (256) 729-2047
email:  [EMAIL PROTECTED]
FedEx Address:  Shaw Road, Athens, AL  35611
==

--
From:  Corey R Clingo[SMTP:[EMAIL PROTECTED]]
Sent:  Thursday, March 15, 2001 1:24 PM
To:  Foxboro DCS Mail List
Subject:  Drop resistor on analog input cards

Does anyone know if I/A analog input cards (FBM01/04 in my case) can
be had with
250-ohm dropping resistors?  My meter tells me the ones we have are
50-ohm, and
most HART handhelds we've used require 250-ohm loop resistance to
function
properly.

TIA,

Corey Clingo
Sr. Engineer
BASF Corp.





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