Cpu Features & Specifications; Common Cpu Features - Emerson PACSystems RX3i User Manual

Section 2:
This Section provides details on the hardware features of the PACSystems CPUs and their
specifications.
▪
▪
▪
2.1

Common CPU Features

▪
▪
▪
▪
▪
▪
▪
▪
▪
▪
▪
▪
▪
▪
▪
CPU Features & Specifications
CPU Features & Specifications
Common CPU Features
RX3i CPU Features and Specifications
RSTi-EP CPU Features and Specifications
Features are 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
RX3i CPU Features and Specifications and RSTi-EP CPU Features and Specifications)
Up to 512 program blocks (Refer to Features Shared by Certain PACSystems CPU
Models
Regarding increased block count to 768 for certain CPU models). 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 PACLogic 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
15