Chapter 2. CPU Features & Specifications
GFK-2222AD
April 2018
31
CPU310
CPU315
CPU320/
CRU320
17
CPE302
18
/
CPE305
CPE310
CPE330
CPE400
Programming Capabilities
Max Number of Program Blocks
512
512
512
512
512
512
512
Program Block Max Size
128 KB
128 KB
128 KB
128 KB
128 KB
128 KB
128 KB
Discrete Reference Memory (%I, %Q)
26
32 Kbits
32 Kbits
32 Kbits
(16)/32 Kbits
32 Kbits
32 Kbits
32 Kbits
Analog Reference Memory (%AI, %AQ)
21
32 Kwords
32 Kwords
32 Kwords
32 Kwords
32 Kwords
32 Kwords
32 Kwords
Bulk Reference Memory (%W)
21
up to max user
RAM
up to max user
RAM
up to max user
RAM
up to max user
RAM
up to max user
RAM
up to max user
RAM
up to max user
RAM
Managed Memory (Sy I/O
Variables)
21,27
up to 10
Mbytes
up to 20
Mbytes
up to 64
Mbytes
up to (2)/5
Mbytes
up to 10
Mbytes
up to 64
Mbytes
up to 64
Mbytes
Floating Point
y
y
y
y
y
y
y
Ladder Diagram (LD)
y
y
y
y
y
y
y
Function Block Diagram (FBD)
y
y
y
y
y
y
y
Structured Text (ST)
y
y
y
y
y
y
y
PID Built-In Function Block
y
y
y
y
y
y
y
"C" Language External Blocks
y
y
y
y
y
y
y
26
Note: Whenever the size of any reference memory is changed, the content of the corresponding reference memory is automatically cleared.
27
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.
