Greetings Keldog,
since I haven’t heard from you, apparently you haven’t gotten my PM with my phone number ... I’ll be leaving the office as soon as I finish this post ... but I’m sure that someone else on the forum will be able to help you with your problem ...
in the meantime ... I suggest that you look in the SAMPLES directory under your RSLOGIX 5000 folder ... if the software was installed with the default configuration, then there should be a sample program named “RIO_BlockTransfer.ACD” and another one named “Multiple_BTs_over_RIO.ACD” ... each has quite a bit of documentation included which might be very useful to you ... the “Multiple_” program is much more complicated ... but ... since you’re mentioning an FAL instruction in your program, this might be the one you need ... basic idea: read the notes in the rung comments and see if things start making sense ...
I’m afraid that you’re not understanding what I mean by “post your code” ... basically you need to ZIP the complete .ACD program file and attach it to your post ... we can open the file with a copy of RSLogix5000 ... just make sure that your boss isn’t going to get bent out of shape because you posted “proprietary - super secret” programming, etc. ... but if you can post the program (not just the construction of a few rungs) then we can tell a lot more about your system ... hint: click on that little “three dot” button on your BTW/MSG instruction - to go "inside" the BTW/MSG ... the track to the information that we’re really interested in starts there ... and then continues on into the tag listings ... in other words, how the rungs are constructed doesn’t tell us NEAR enough about your system ...
it might also be helpful to know whether your 1771-IFE module is wired up for “single-ended” or for “differential” ... and which analog channel number are we dealing with? ... if “single-ended” it will be channel number 1 through 16 ... if “differential” it will be channel number 1 through 8 ... and if there is more than one 1771-IFE module in the chassis, which slot is this particular module located in? ... little details like that can be very important ...
anyway ... we’ll be glad to keep trying to help ... but the more we know about your system, the more help we’ll be able to provide ...
one extra question: are you already familiar with how the 1771-IFE module gets its “configuration” by means of a BTW in the older PLC-5 systems? ... if not, then we’ve got some “basic idea” stuff to cover along the way ...
offline for the rest of today ... good luck ...