prosafe-rs link transmission
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Have any of you who work with marine systems used the link transmission function in Yokogawa SIS? I have a problem: I want to use a DO in SIS to control a switch in the DCS, without having to communicate with the DCS through the SI-1 module and instead using logic to trigger the action. The SIS has a LINK TRANSMISSION function; I have been studying the relevant materials for two days yet still haven’t figured out how to communicate with the Global switch using the LTSND function block. On the other hand, communication from the DCS global switch to the SIS side can be achieved through LTFCS. How can I use LINK TRANSMISSION to transfer SIS data to DCS? Waiting for an expert to answer.
Does no one know? Please ask an expert for an answer
I’ll make a note; the materials I have are on my home computer, and that computer doesn’t have PROSAFE. I’ll check it for you when I get home at night...
Reply to 3# summeredge: Okay, I’ll wait for your message. It’s mainly the data that flows from SIS to DCS
This post was last edited by summeredge on 2011-4-8 at 09:50. Reply to 4# hallon520: I’m sorry; with so many things going on, I forgot about this. You’re referring to the issue of integrating data from ESD and DCS, right? From what I know, the method you mentioned involves one-way data transmission, and DCS cannot obtain data from ESD using this approach. The Yokogawa engineer who trained us seems not to be very familiar with this either; although she thought it was possible to achieve two-way data transfer, she couldn’t provide me with a solution. There are other methods for integrating data between ESD and DCS, such as using function blocks like EWB to create global variables which can then be imported into DCS. This method is somewhat more complicated and requires a series of processing steps. I’m sure you know more about this than I do, so I won’t go into further detail
Reply to 5# summeredge: I mainly don’t know how to use the LTSND function block. Thank you!