User Forum A 24/7 resource for Campbell Scientific users

Hi all,

Ive been busy with my 10 minute weather display as you can see below in RTMC Pro.
Hell of a job that is...every data and colour has its own instruction...

But how to get rid of the NAN being displayed caused by data not yet been gathered.
Probably have to add something after each instruction in RTMC Pro?

* Last updated by: Mavada on 1/19/2013 @ 2:35 AM *

this expression is used...every datafield will increase the 2510 value...

StartRelativeToNewest(nSecPerDay*2,OrderCollected);ValueAtTime("Server:CR1000.Table1.Windroos",TimeStamp("Server:CR1000.Table1.Windroos"),TimeStamp("Server:CR1000.Table1.Windroos") MOD nSecPerDay+nSecPerHour*24-nSecPerMin*2510,6999)

must have an expression which will start only when a certain time is present, so if it isnt, there will be a blanc datafield (without zero or tekst...)to prevent the NAN...

* Last updated by: Mavada on 1/19/2013 @ 9:10 AM *

anyone got an idea?

See if you can use IIF (refer to the help file) to return some other value if NAN or return the value if not NAN.

Dana W.

if i use this, it result in 0. NAN or no NAN.

StartRelativeToNewest(nSecPerDay*2,OrderCollected);ValueAtTime("Server:CR1000.Table1.Beaufort",TimeStamp("Server:CR1000.Table1.Beaufort"),TimeStamp("Server:CR1000.Table1.Beaufort") MOD nSecPerDay+nSecPerHour*24-nSecPerMin*2870,6999)IIF("Server:CR1000.Table1.Beaufort"=NAN,"","Server:CR1000.Table1.Beaufort")

please give me some info on this:):)

* Last updated by: Mavada on 1/23/2013 @ 1:14 PM *

please give me some info on this:):)

I get around this problem by declaring the variable as a string then setting its value to " " at the beginning of the program.

Thanks for your reply, how do i do that in RTMC Pro with this instruction?:

StartRelativeToNewest(nSecPerDay*2,OrderCollected);ValueAtTime("Server:CR1000.Table1.Windroos",TimeStamp("Server:CR1000.Table1.Windroos"),TimeStamp("Server:CR1000.Table1.Windroos") MOD nSecPerDay+nSecPerHour*24-nSecPerMin*2510,6999)

Try this:

StartRelativeToNewest(nSecPerDay*2,OrderCollected); IFF(ValueAtTime("Server:CR1000.Table1.Windroos",TimeStamp("Server:CR1000.Table1.Windroos"),TimeStamp("Server:CR1000.Table1.Windroos") MOD nSecPerDay+nSecPerHour*24-nSecPerMin*2510,6999) = NAN, $" ", ValueAtTime("Server:CR1000.Table1.Windroos",TimeStamp("Server:CR1000.Table1.Windroos"),TimeStamp("Server:CR1000.Table1.Windroos") MOD nSecPerDay+nSecPerHour*24-nSecPerMin*2510,6999))

Or you can use the IsFinite() function instead of checking specifically for NAN.

StartRelativeToNewest(nSecPerDay*2,OrderCollected);
Alias(val, "Server:CR1000.Table1.Windroos");
IIF(IsFinite(ValueAtTime(val,TimeStamp(val),TimeStamp(val) MOD nSecPerDay+nSecPerHour*24-nSecPerMin*2510,6999)), ValueAtTime(val,TimeStamp(val),TimeStamp(val) MOD nSecPerDay+nSecPerHour*24-nSecPerMin*2510,6999), $" ")

Thanks for the reply.
With this instruction:

StartRelativeToNewest(nSecPerDay*2,OrderCollected);
Alias(val, "Server:CR1000.Table1.Windroos");
IIF(IsFinite(ValueAtTime(val,TimeStamp(val),TimeStamp(val) MOD nSecPerDay+nSecPerHour*24-nSecPerMin*2510,6999)), ValueAtTime(val,TimeStamp(val),TimeStamp(val) MOD nSecPerDay+nSecPerHour*24-nSecPerMin*2510,6999), $" ")

the NAN is gone, but as soon as it should show data, it shows an !