++———————-+
| +———————-+
| +———————-+
++———————-+
Fill Chart
+———————-+
P….. Display References
A
R….. History Collection
A
M….. Alarms
I
T….. Function Block - Algorithms
E
R
S ….. I/O
r | History Collection |
What is a Module? What is a Module block?
A reusable control algorithm
A way of graphically showing how algorithms are linked
Is a READ or a WRITE function block better?
Read, it has confirmation of the successful process throughout the system. We do not get any information if the write fails
What is Normal Mode for a function block
It’s what the block is doing when the plant is NOT producing. Similar to the fail position of a valve
What is Target Mode for a function block
The user deffined desired mode for a block to change. EG: changing from manual mode to automatic.
What is Actual Mode for a function block
What the block is currently doing
What is a composite block
many blocks combined, user-defined, simplify topology
What does a composite block represent
SFC (sequential Function Chart)
