Proportional Integral Derivative (Pid) Block With Auto Tune; Figure 10: Pid Block; Figure 11: Pid Block Schematic Diagram - Honeywell SmartLine RMA800 User Manual

5.6

Proportional Integral Derivative (PID) block with auto tune

The PID block is the key to many control schemes, and it is commonly used. The PID function
integrates the errors. If there is difference in process time constants of a primary process and
secondary process measurement, then the block can be cascaded if required. Auto tuning is a feature
that tunes the PID constants as per the process automatically.
Page 54 Foundation Fieldbus RMA803 Remote Indicator User's Guide

Figure 10: PID block

Figure 11: PID block schematic diagram

Revision 4