Rx3I Overview - Emerson PACSystems RX3i User Manual

PACSystems™ RX3i and RSTi-EP CPU Reference Manual
GFK-2222AK
1.3

RX3i Overview

The RX3i control system hardware consists of an RX3i universal backplane and up to
seven Series 90-30 expansion or remote racks. The CPU can be in any slot in the universal
backplane except the last slot, which is reserved for the serial bus transmitter,
IC695LRE001.
The RX3i supports user defined Function Blocks (LD logic only) and Structured Text
programming.
The RX3i universal backplane uses a dual bus that provides both:
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The RX3i universal backplane and Series 90-30 expansion/remote racks support the Series
90-30 Genius Bus Controller and Motion Control modules, and most Series 90-30/RX3i
discrete and analog I/O with catalog prefixes IC693 and IC694. RX3i modules with catalog
prefixes IC695, including the Ethernet and other communications modules can only be
installed in the universal backplane. See the PACSystems RX3i System Manual, GFK-2314
for a list of supported modules.
RX3i supports hot standby (HSB) CPU redundancy, which allows a critical application or
process to continue operating if a failure occurs in any single component. A CPU
redundancy system consists of an active unit that actively controls the process and a
backup unit that is synchronized with the active unit and can take over the process if it
becomes necessary. Each unit must have a redundancy CPU (See section 2.2 for CPUs
that support redundancy). For the backplane-based CPU redundancy, the redundancy
communication path is provided by IC695RMX128 Redundancy Memory Xchange (RMX)
modules set up as redundancy links. For the Ethernet-based CPU redundancy, the
redundancy communication path is provided by Ethernet connections between the
redundant CPUs. For details on the operation of PACSystems redundancy systems, refer
to the PACSystems Hot Standby CPU Redundancy User Manual, GFK-2308.
RX3i communications features include:
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Introduction
High-speed PCI for fast throughput of new advanced I/O.
Serial backplane for easy migration of existing Series 90-30 I/O
Open communications support includes Ethernet, PROFIBUS, PROFINET, Modbus
TCP, Ethernet Global Data (EGD), DNP3 and serial protocols.
On the CPL410, the Ethernet Port and Serial Port located on the underside and one
of the USB ports are controlled by the Linux Operating System; all front-panel ports
are controlled by the RX3i PLC, except for the one USB port mentioned above.
On the CPE400, one of its embedded Ethernet ports is set up as a dedicated Field
Agent port.
The CPE302, CPE305 11 , CPE310, and CPE330, CPE400 and CPL410 CPUs provide an
embedded Ethernet interface which is used to connect to the programmer
(PACMachine Edition).
Effective with RX3i CPE310/CPE305 firmware version 7.30, or CPE330 firmware
version 8.50, the embedded Ethernet port on the CPU provides support for Service
Request Transfer Protocol (SRTP) channels and for Modbus TCP. This feature is
available on all firmware versions of CPE400 and CPL410.
Section 1
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