RE: Rolling average

Alex suggests averaging 8 buckets from the DEADTIME block and this is very practical. Some other suggestions are: First DTOPT is set to 0 (DEADTIME block) so that the input is averaged over the duration of bucket transfers (the so called rolling average feature). If the DEADTIME block period is a

Re: AB KF2 at 19.2 Kbaud?

Thanks Glen. I'll let my guys over here know that Kirk Carver ExxonMobil Chemical Beaumont Polyethylene Plant PO Box 2295 Beaumont, Texas 77704 Phone: 409-860-1314 [EMAIL PROTECTED] - "Glen" <[EMAIL PROTECTED]> on 09/07/2000 1

Re: AB KF2 at 19.2 Kbaud?

Talked with our AB guy, and he had this to say: "The latest version of the KF2 manual 1770-6.5.13 (dated 1989!) does not document that switch setting." He goes on to state that there were some release notes in 1995, but they don't explain any different switching either. and "I still feel tha

RE: AB KF2 at 19.2 Kbaud?

It's the Foxboro name for the gateway: GP = Gateway Processor. I believe ours are GP30's... upgraded from GP10's a couple of years ago Kirk Kirk Carver ExxonMobil Chemical Beaumont Polyethylene Plant PO Box 2295 Beaumont, Texas 77704 Phone: 409-860-1314 [EMAIL PROTECTE

Re: AB KF2 at 19.2 Kbaud?

The newer revision KF2's do have the 19.2K option. But unless you make a 12' cable don't try it. It will be slower than 9600 with all the retry's. Glen Bounds - Original Message - Subject: Re: AB KF2 at 19.2 Kbaud? > > This confused me more than helped to clear things up. If the >

RE: Rolling average

Alex, Due to other work I've only had time to build 1 of them but I intend to try them all! Yours was the easiest and quickest so I chose that. Ever noticed how a valve doesn't open when you want it to? It's running using a temporary RAMP block for input to the DTIME and first indications are tha

Re: AB KF2 at 19.2 Kbaud?

This confused me more than helped to clear things up. If the following is true. "The 1770-KF2 does NOT have an option for communicating at 19.2K" Does this mean the 19.2K dip switch setting is not really available? The SW6 settings shown on the KF2 cover include 19.2K. We have contemplated ru

RE: AB KF2 at 19.2 Kbaud?

Very interesting Kirk, we also are using KF2 modules at 9600 baud, but with a small twist. We are connecting to a SLC504 via a radio modem. By the way, this may be a stupid question, but what is a GP? Regards John Campbell > -Original Message- > From: Kirk D Carver [SMTP:[EMAIL PROTE

RE: Rolling average

So, Steve. What did you decide to do. Regards, Alex Johnson The Foxboro Company 10707 Haddington Houston, TX 77043 713.722.2859 (v) 713.722.2700 (sb) 713.932.0222 (f) [EMAIL PROTECTED] -Original Message- From: Steve Rigby [SMTP:[EMAIL PRO

Re: Rolling average

Steve, Try the following in a CALC block: RI01 = valve position RO01 = approx. one hour average valve position Block Period = whatever M01 = filter time = block period / 1 Time Constant If time average is 1 hour (approx. 4 time constants) then 1 time constant = 15 minutes or 900 seconds. As