Rockwell Automation GMLC Reference Manual - Manual (Page 685)

Publication GMLC-5.2 - November 1999
648 Mathematical Functions
The argument can be any floating point value or expression.
For example, the following expression is evaluated as 10 if the user
variable
Cut_Length has a value between 9 and 10 (9 < Cut_Length
≤
10), 11 if Cut_Length has a value between 10 and 11 (10 < Cut_Length
≤
11), etc.
Round_up(Cut_Length)
Round Down
The Round_down function rounds the argument down to the next lower
integer value, as shown below.
.
Argument
+1 +2 –1 –2
+1
+2
–1
–2