two integer to ieee754 floating point in ML1100

[justges 0]

Not done this before, be gentle!!! I am trying to get data from a Micro Motion 1700 via modbus to a ML1100 (as I understand the only AB PLC talking modbus). Am able to get the data in as floating point from 1700 (two integers in ML) to the ML, but am not able to get it convert two integers to floating point in ML. Help

[TimWilborne 108]

What do you mean by you've got the data into two integers? You have the numbers to the left of the decimal in one and the numbers to the right of the decimal in the other or...

[BobLfoot 302]

This post describes how to do it on an SLC 5/04 http://forums.mrplc.com/index.php?showtopi...amp;hl=Ieee+754 THis post might also shed light - http://forums.mrplc.com/index.php?showtopi...amp;hl=Ieee+754 This one might also shed light on your situation - http://forums.mrplc.com/index.php?showtopic=8925&hl=

[justges 0]

look to simple to be true. BobLfoot printed two of your reference for the ML and the 5/04, i will be xfering the data to a 5/05 so if can't get it to work in ML will write it to the SLC and convert it there. Will be trying this tomorrow will advise outcome or have more questions tks wayne

[justges 0]

Ok. Don't know why the interger transfer didn't work but I had also set up messaging with binary. CPWed the B words (six of them) to three F8's and didn't even have to swap high and low words, worked perfectly. Bob thanks much, tech support (called them before posting) had no solution. Again thanks.

[BobLfoot 302]

Glad I could help, but the thanks goes to all the members of MRPLC who answered the other questions. KEY LEARNING - THE MRPLC SEARCH TOOL CAN HELP FIND STUFF

[TConnolly 13]

I'm glad you got it working - its curious though that B words worked but N words wouldnt work because there is no difference between them. CPW should have worked either way. Oh well, just make sure you document it well so the next guy knows whats going on. BTW, welcome to the forum, we invite you to participate and hopefully we will see more of you.