Chapter 2. CPU Features & Specifications
18
PACSystems* RX7i, RX3i and RSTi-EP CPU Reference Manual
GFK-2222AD
2.1
Common CPU Features
2.1.1
Features Shared by All PACSystems CPU Models
▪
Programming in Ladder Diagram, Function Block Diagram, Structured Text and C.
▪
Floating point (real) data functions.
▪
Configurable data and program memory.
▪
Non-volatile built-in flash memory for user data (program, configuration, register data, and
symbolic variable) storage. Use of this flash memory is optional.
▪
Configurable RUN/STOP Mode switch.
▪
Embedded serial and/or Ethernet communications (refer to comparison charts in
RX7i CPU Features and Specifications and RSTi-EP CPU Features and
▪
Up to 512 program blocks. Maximum size for a block is 128KB.
▪
Auto Located Symbolic Variables, which allows you to create a variable without specifying a
reference address.
▪
Bulk memory area accessed via reference table %W. The upper limit of this memory area can be
configured to the maximum available user RAM.
▪
Larger reference table sizes, compared to Series 90* CPUs: 32Kbits for discrete %I and %Q and
up to 32K words each for analog %AI and %AQ.
▪
Online Editing mode that allows you to easily test modifications to a running program. (For
details on using this feature, refer to the programming software online help and
Proficy Logic
Developer Getting Started,
GFK-1918.)
▪
Bit in word referencing that allows you to specify individual bits in a WORD reference in retentive
memory as inputs and outputs of Boolean expressions, function blocks, and calls that accept bit
parameters.
▪
In-system upgradeable firmware for CPU
▪
Indirect mechanism for upgrading firmware in backplane modules via the CPU.