Block Diagram Rules. Simplify the modified block diagram is shown in the following figure. Below table represents block diagram reduction rules in the control system using the above rules you have to follow below simple steps to solve the block diagrams.
Rule 1 check for the blocks connected in series and simplify. Xg 1 s g xs. 5 positive feedback loop rule.
Block diagram of liquid level system 1 1 1 qq dt dh c 1 21 1 r hh q 21 2 2 qq dt dh c 2 2 2 r h q 39.
Reduce the blocks connected in parallel step 3. In process control block diagrams are a visual language for describing actions in a complex system in which blocks are black boxes that represent mathematical or logical operations that occur in sequence from left to right and top to bottom but not the physical entities such as processors or relays that perform those operations. Rule no2 blocks in parallel when two or more blocks are connected in parallel then the resultant block is the sum of the individual blocks. Block diagram reduction rules rule no1.