Alex, I greatly appreciate your help! Regards, Steve Ziegler On 1/24/07, Johnson, Alex P (IPS) <alex.johnson@xxxxxxxxxxxxxxxx> wrote: > > Re: SAMA and the I/A Series > > There is no automatic correlation between the SAMA notation and the I/A > Series control blocks. > > That is, there is no I/A Series tool that can convert SAMA to one or > more control blocks or vice versa. This is a limitation that aggravates > the heck out of folks in the US power market. > > Typically, a SAMA drawing is done manually to illustrate the behavior of > the control blocks in a CP, but there is nothing that indicates how the > CP blocks are used to implement the SAMA logic. > > So, the statement that the drawing you are looking at represents a CALCA > block may well be true, but there is know way to know that for certain > other than to identify the block and work it out the hard way. > > The new configuration tool - InFusion Engineering Environment - goes a > long, long way towards fixing that issue, but I doubt that you have it > in your plant. Currently, it is limited to V8.2 equipment and later. > > > Re: CALC block language > It is a stack oriented, reverse-polish notation. If you've ever used an > HP calculator you've worked with a similar system. > > I don't know if Winston Jenks still has it up or not, but he had some > tools that would take equations and yield CALC block steps (and I think > vice versa). His company is Cape Software www.capesoftware.com. It is a > useful learning tool at the minimum. > > > Regards, > =20 > Alex Johnson > Invensys Systems, Inc. > 10900 Equity Drive > Houston, TX 77041 > 713.329.8472 (voice) > 713.329.1700 (fax) > 713.329.1600 (switchboard) > alex.johnson@xxxxxxxxxxxxxxxx > -----Original Message----- > From: foxboro-bounce@xxxxxxxxxxxxx [mailto:foxboro-bounce@xxxxxxxxxxxxx] > On Behalf Of Stephen Ziegler > Sent: Wednesday, January 24, 2007 9:28 PM > To: foxboro@xxxxxxxxxxxxx > Subject: [foxboro] SAMA and Integrated Control Blocks... > > Hello all, > I have been working with Foxboro logic for a few days now. I come from > a > Siemens background (TXP) and the notation is somewhat similar. > > However, I do have one question. After looking through the documentation > (in > particular, the integrated control block descriptions), I am still not > sure > how a block would appear on a logic diagram. For instance, I have > several > functional diagrams for valves and instrumentation within a power plant. > I > understand and can follow the logic, but it is all standard SAMA > notation, > however one of my colleagues refers to whole diagram as a CALCA block. > So am > I to assume that this diagram is literally showing the logic within the > CALCA block itself? How can one tell that this is a CALCA block just by > looking at the SAMA? > > Reading through the I/A docs, I understand what's going on in these > blocks. > Essentially it looks like assembly language within the block acting on > inputs and outputs. > > I greatly appreciate your help! > > Regards, > Steve > > > =20 > =20 > _______________________________________________________________________ > This mailing list is neither sponsored nor endorsed by Invensys Process > Systems (formerly The Foxboro Company). Use the info you obtain here at > your own risks. Read http://www.thecassandraproject.org/disclaimer.html > =20 > foxboro mailing list: //www.freelists.org/list/foxboro > to subscribe: mailto:foxboro-request@xxxxxxxxxxxxx?subject=3Djoin > to unsubscribe: mailto:foxboro-request@xxxxxxxxxxxxx?subject=3Dleave > =20 > > > > Confidentiality Notice: =0AThe information contained in this electronic m= > essage and any attachment(s) to this message are intended for the exclusi= > ve use of the recipient(s) and may contain confidential, privileged or pr= > oprietary information. If you are not the intended recipient, please noti= > fy the sender immediately, delete all copies of this message and any atta= > chment(s). Any other use of the E-Mail by you is prohibited.=0A > > > > _______________________________________________________________________ > This mailing list is neither sponsored nor endorsed by Invensys Process > Systems (formerly The Foxboro Company). Use the info you obtain here at > your own risks. Read http://www.thecassandraproject.org/disclaimer.html > > foxboro mailing list: //www.freelists.org/list/foxboro > to subscribe: mailto:foxboro-request@xxxxxxxxxxxxx?subject=join > to unsubscribe: mailto:foxboro-request@xxxxxxxxxxxxx?subject=leave > > _______________________________________________________________________ This mailing list is neither sponsored nor endorsed by Invensys Process Systems (formerly The Foxboro Company). Use the info you obtain here at your own risks. Read http://www.thecassandraproject.org/disclaimer.html foxboro mailing list: //www.freelists.org/list/foxboro to subscribe: mailto:foxboro-request@xxxxxxxxxxxxx?subject=join to unsubscribe: mailto:foxboro-request@xxxxxxxxxxxxx?subject=leave