Chapter 2. CPU Features & Specifications
GFK-2222AD April 2018 31
Max Number of Program Blocks
Discrete Reference Memory (%I, %Q)
26
Analog Reference Memory (%AI, %AQ)
21
Bulk Reference Memory (%W)
21
Managed Memory (Symbolic + I/O
Variables)
21,27
Function Block Diagram (FBD)
PID Built-In Function Block
"C" Language External Blocks
Note: Whenever the size of any reference memory is changed, the content of the corresponding reference memory is automatically cleared.
For discussion of memory types and how they are managed, refer to PACSystems RX7i and RX3i CPU Programmer’s Reference Manual, GFK-2950 Chapter 3.