Process control instructions Chapter 18
Rockwell Automation Publication 2080-RM001D-EN-E - February 2015 533
• Cycle time and Scan Time Jitter both contribute to the overall inaccuracy of
Integral output.
• See also XIN in sync with function block execution example and XIN not
in sync with function block execution example.
Arguments
Parameter Parameter type Data type Description
RUN Input BOOL Mode: TRUE = integrate / FALSE = hold.
R1 Input BOOL Overriding reset.
XIN Input REAL Input: any real value.
X0 Input REAL Initial value.
CYCLE Input TIME Sampling period. Possible values range from 0ms to 23h59m59s999ms.
Q Output BOOL Not R1.
XOUT Output REAL Integrated output.
Example: XIN in sync with function block execution
The following pictures show the effect of Scan Time Jitter on the XOUT value: