Honeywell UMC800 - Example 6 - Cascade Control of a Boiler Drum Level - 3 Element Feedwater Control

Function Blocks
Function Block Reference Guide 3/99158
2.50 PID Function Block,
continued
2.50.6 Example 6 - Cascade Control of a Boiler Drum Level -
3 Element Feedwater Control
M
Feedwater Flow
FT 2
Steam
Note: All physical
connections are by
I/O cards
LT 2
LT 1
Steam Drum
Figure 2-52 Cascade Control of a Boiler Drum Level - 3 Element Feedwater Control