Emerson PACSystems RX3i User manual

User Manual
GFK-2222AK
October 2019
PACSystems™ RX3i and RSTi-EP CPU
Reference Manual

Warnings and Caution Notes as Used in this Publication
WARNING
Warning notices are used in this publication to emphasize that hazardous voltages, currents,
temperatures, or other conditions that could cause personal injury exist in this equipment or may be
associated with its use.
In situations where inattention could cause either personal injury or damage to equipment, a Warning
notice is used.
CAUTION
Caution notices are used where equipment might be damaged if care is not taken.
Note: Notes merely call attention to information that is especially significant to understanding and operating the
equipment.
These instructions do not purport to cover all details or variations in equipment, nor to provide for every
possible contingency to be met during installation, operation, and maintenance. The information is
supplied for informational purposes only, and Emerson makes no warranty as to the accuracy of the
information included herein. Changes, modifications, and/or improvements to equipment and
specifications are made periodically and these changes may or may not be reflected herein. It is
understood that Emerson may make changes, modifications, or improvements to the equipment
referenced herein or to the document itself at any time. This document is intended for trained personnel
familiar with the Emerson products referenced herein.
Emerson may have patents or pending patent applications covering subject matter in this document. The
furnishing of this document does not provide any license whatsoever to any of these patents.
Emerson provides the following document and the information included therein as-is and without
warranty of any kind, expressed or implied, including but not limited to any implied statutory warranty of
merchantability or fitness for particular purpose.
© 2019 Emerson. All rights reserved.
Emerson Terms and Conditions of Sale are available upon request. The Emerson logo is a
trademark and service mark of Emerson Electric Co. All other marks are the property of
their respective owners

Contents i
Table of Contents
Table of Contents..................................................................................................................................... i
Table of Figures.......................................................................................................................................vi
Section 1: Introduction......................................................................................................................... 1
1.1 Revisions in this Manual ........................................................................................................ 2
1.2 PACSystems Control System Overview .................................................................................. 5
1.2.1 Programming and Configuration ........................................................................................ 5
1.2.2 Process Systems ................................................................................................................. 5
1.2.3 PACSystems CPU Models .................................................................................................... 6
1.3 RX3i Overview...................................................................................................................... 7
1.4 RSTi-EP Overview ............................................................................................................... 10
1.5 Migrating Series 90 Applications to PACSystems .................................................................. 11
1.6 Documentation.................................................................................................................. 12
1.6.1 PACSystems Manuals........................................................................................................ 12
1.6.2 RX3i Manuals .................................................................................................................... 12
1.6.3 Field Agent Manuals.......................................................................................................... 13
1.6.4 RSTi-EP Manuals ............................................................................................................... 13
1.6.5 Series 90 Manuals ............................................................................................................. 13
1.6.6 Distributed I/O Systems Manuals ...................................................................................... 13
Section 2: CPU Features & Specifications ............................................................................................. 15
2.1 Common CPU Features....................................................................................................... 15
2.1.1 Features Shared by Certain PACSystems CPU Models ........................................................ 16
2.1.2 Firmware Storage in Flash Memory ................................................................................... 16
2.1.3 Operation, Protection, and Module Status ........................................................................ 17
2.1.4 Ethernet Global Data ........................................................................................................ 17
2.1.5 Embedded PROFINET Controller ....................................................................................... 17
2.1.6 OPC UA............................................................................................................................. 19
2.1.7 Removable Data Storage Devices (RDSDs) ........................................................................ 20
2.1.8 Uploading a Project from the CPU to the RDSD ................................................................. 21
2.1.9 Downloading a Project from the RDSD to the CPU ............................................................ 22
2.1.10 CPU Over-Temperature Monitoring and Behavior ............................................................ 24

Contents
Contents ii
2.2 RX3i CPU Features and Specifications .................................................................................. 26
2.3 RSTi-EP CPU Features and Specifications .............................................................................. 33
2.3.1 CPE100/CPE115................................................................................................................ 36
Section 3: CPU Configuration.............................................................................................................. 45
3.1 Configuring the CPU........................................................................................................... 45
3.2 Configuration Parameters................................................................................................... 46
3.2.1 Settings Parameters ......................................................................................................... 46
3.2.2 Modbus TCP Address Map................................................................................................. 50
3.2.3 SNTP................................................................................................................................. 51
3.2.4 Time................................................................................................................................. 52
3.2.5 Scan Parameters ............................................................................................................... 54
3.2.6 Memory Parameters ......................................................................................................... 57
3.2.7 Fault Parameters............................................................................................................... 60
3.2.8 Redundancy Parameters (Redundancy CPUs Only)............................................................ 62
3.2.9 Transfer List ...................................................................................................................... 62
3.2.10 COM1 and COM2 Parameters .......................................................................................... 62
3.2.11 Scan Sets Parameters....................................................................................................... 67
3.2.12 Power Consumption Parameters...................................................................................... 68
3.2.13 Access Control................................................................................................................. 68
3.2.14 OPC UA Parameters ......................................................................................................... 70
3.3 Storing (Downloading) Hardware Configuration................................................................... 70
3.4 Configuring the Embedded Ethernet Interface ..................................................................... 71
3.4.1 Establishing Initial Ethernet Communications ................................................................... 72
3.4.2 Setting a Temporary IP Address ........................................................................................ 73
Section 4: CPU Operation ................................................................................................................... 77
4.1 CPU Sweep ........................................................................................................................ 78
4.1.1 Parts of the CPU Sweep..................................................................................................... 79
4.1.2 CPU Sweep Modes ............................................................................................................ 83
4.2 Program Scheduling Modes ................................................................................................ 86
4.3 Window Modes .................................................................................................................. 86
4.4 Data Coherency in Communications Windows ..................................................................... 87
4.5 Run/Stop Operations .......................................................................................................... 88
4.5.1 CPU STOP Modes .............................................................................................................. 88

Contents
Contents iii
4.5.2 STOP-to-RUN Mode Transition.......................................................................................... 91
4.6 Flash Memory Operation..................................................................................................... 92
4.6.1 RUN/STOP Switch Operation ............................................................................................ 93
4.7 Logic/Configuration Source and CPU Operating Mode at Power-Up....................................... 93
4.7.1 CPU Mode when Memory Not Preserved/Power-up Source is Flash ................................... 95
4.7.2 CPU Mode when Memory Preserved ................................................................................. 96
4.8 Clocks and Timers .............................................................................................................. 97
4.8.1 Elapsed Time Clock ........................................................................................................... 97
4.8.2 Time-of-Day Clock ............................................................................................................ 97
4.8.3 Watchdog Timer............................................................................................................... 98
4.9 System Security ............................................................................................................... 100
4.9.1 Passwords and Privilege Levels - Legacy Mode................................................................. 100
4.9.2 OEM Protection –Legacy Mode ...................................................................................... 104
4.9.3 Enhanced Security for Passwords and OEM Protection .................................................... 105
4.9.4 Legacy/Enhanced Security Comparison .......................................................................... 107
4.10 PACSystems I/O System.................................................................................................... 108
4.10.1 I/O Configuration........................................................................................................... 109
4.10.2 I/O System Diagnostic Data Collection........................................................................... 111
4.10.3 Power-Up and Power-Down Sequences ......................................................................... 112
Section 5: Communications.............................................................................................................. 119
5.1 Ethernet Communications ................................................................................................ 119
5.1.1 Embedded Ethernet Interfaces........................................................................................ 119
5.1.2 Ethernet Interface Modules............................................................................................. 124
5.2 Serial Communications..................................................................................................... 124
5.2.1 Serial Port Communications Capabilities......................................................................... 125
5.2.2 Configurable STOP Mode Protocols ................................................................................ 126
5.2.3 Serial Port Pin Assignments............................................................................................. 126
5.2.4 Serial Port Electrical Isolation .......................................................................................... 130
5.2.5 Serial Cable Lengths and Shielding .................................................................................. 131
5.2.6 Serial Port Baud Rates ..................................................................................................... 131
5.2.7 Communications Coprocessor Module (CMM) ................................................................ 132
5.2.8 Programmable Coprocessor Module (PCM) .................................................................... 132

Contents
Contents iv
Section 6: Serial I/O, SNP & RTU Protocols.......................................................................................... 135
6.1 Configuring Serial Ports Using COMMREQ Function 65520.................................................. 135
6.1.1 COMMREQ Function Example ......................................................................................... 135
6.1.2 Timing............................................................................................................................ 136
6.1.3 Sending Another COMMREQ to the Same Port................................................................ 136
6.1.4 Invalid Port Configuration Combinations ........................................................................ 136
6.1.5 COMMREQ Command Block Parameter Values ............................................................... 136
6.1.6 Example COMMREQ Command Blocks for Serial Port Setup function .............................. 138
6.1.7 Example COMMREQ Command Block for Configuring SNP Protocol ................................ 138
6.1.8 Example COMMREQ Data Block for Configuring RTU Protocol......................................... 139
6.1.9 Example COMMREQ Data Block for Configuring Serial I/O Protocol ................................. 140
6.2 Serial I/O Protocol ............................................................................................................ 141
6.2.1 Calling Serial I/O COMMREQs from the CPU Sweep ......................................................... 141
6.2.2 Compatibility.................................................................................................................. 141
6.2.3 Status Word for Serial I/O COMMREQs ............................................................................ 142
6.2.4 Serial I/O COMMREQ Commands .................................................................................... 144
6.2.5 Overlapping COMMREQs ................................................................................................ 144
6.2.6 Initialize Port Function (4300)......................................................................................... 145
6.2.7 Set Up Input Buffer Function (4301)................................................................................ 146
6.2.8 Flush Input Buffer Function (4302) .................................................................................. 147
6.2.9 Read Port Status Function (4303).................................................................................... 147
6.2.10 Write Port Control Function (4304)................................................................................ 150
6.2.11 Cancel COMMREQ Function (4399)................................................................................ 151
6.2.12 Autodial Function (4400) ............................................................................................... 153
6.2.13 Write Bytes Function (4401) .......................................................................................... 154
6.2.14 Read Bytes Function (4402) ........................................................................................... 156
6.2.15 Read String Function (4403) .......................................................................................... 157
6.3 RTU Slave Protocol ........................................................................................................... 159
6.3.1 Message Format ............................................................................................................. 160
6.3.2 Cyclic Redundancy Check (CRC)...................................................................................... 165
6.3.3 RTU Message Descriptions.............................................................................................. 170
6.3.4 RTU Scratch Pad ............................................................................................................. 187
6.3.5 Communication Errors.................................................................................................... 188
6.3.6 RTU Slave/SNP Slave Operation with Programmer Attached ........................................... 190
6.4 SNP Slave Protocol ........................................................................................................... 191
6.4.1 Permanent Datagrams.................................................................................................... 191
6.4.2 Communication Requests (COMMREQs) for SNP ............................................................ 192

Contents
Contents v
Appendix A: Performance Data ...................................................................................................... 193
A-1.1 Boolean Execution Measurements (ms per 1000 Boolean executions)............................. 193
A-2 Instruction Timing......................................................................................................................... 195
A-2.1 Overview ........................................................................................................................ 195
A-2.2 RX3i & RSTi-EP Instruction Times .................................................................................... 197
A-3 Overhead Sweep Impact Times ...................................................................................................... 198
A-3.1 Base Sweep Times .......................................................................................................... 198
A-3.2 What the Sweep Impact Tables Contain.......................................................................... 200
A-3.3 Programmer Sweep Impact Times .................................................................................. 201
A-3.4 I/O Scan and I/O Fault Sweep Impact............................................................................... 202
A-3.5 Ethernet Global Data Sweep Impact................................................................................ 207
A-3.6 EGD Sweep Impact for Embedded Ethernet Interface on RX3i & RSTi-EP CPE Models ....... 212
A-3.7 Example Calculation for EGD Utilization on RX3i CPE302/CPE305/CPE310 and RSTi-EP
CPE100/CPE115 213
A-3.8 Normal Sweep –EGD on RX3i CPE302/CPE305/CPE310 and RSTi-EP CPE100/CPE115
Embedded Ethernet Interface ................................................................................................................... 213
A-3.9 Constant Sweep - EGD on RX3i CPE302/CPE305/CPE310 and RSTi-EP CPE100/CPE115
Embedded Ethernet Interface ................................................................................................................... 215
A-3.10 Sweep Impact of Intelligent Option Modules ................................................................. 215
A-3.11 I/O Interrupt Performance and Sweep Impact................................................................ 218
A-3.12 Timed Interrupt Performance ........................................................................................ 220
A-4 User Memory Allocation ................................................................................................................ 221
A-5 Items that Count Against User Memory .......................................................................................... 221
A-6 User Program Memory Usage......................................................................................................... 222
A-6.1 %L and %P Program Memory ........................................................................................... 222
A-6.2 Program Logic and Overhead.......................................................................................... 223

Contents
Contents vi
Table of Figures
Figure 1: Configuring an Embedded PROFINET Controller _____________________________________________ 18
Figure 2: CPE100, Front, Top, and Bottom Views and Features_________________________________________ 36
Figure 3: CPE100/CPE115 Membrane Pushbutton and Module Status LEDs ______________________________ 38
Figure 4: State Diagram for CPE100/CPE115 Run/Stop Operation ______________________________________ 39
Figure 5: Typical Multi-Tier LAN Application (Star/Bus Topology)_______________________________________ 42
Figure 6: Typical Multi-Tier LAN Application (Ring Topology) __________________________________________ 42
Figure 7: Downloading Hardware Config to CPU ____________________________________________________ 70
Figure 8: Embedded Ethernet Interface Configuration _______________________________________________ 71
Figure 9: Set Temporary IP Address ______________________________________________________________ 74
Figure 10: Major Phases of a Typical CPU Sweep____________________________________________________ 79
Figure 11: Typical Sweeps in Normal Sweep Mode __________________________________________________ 83
Figure 12: Typical Sweeps in Constant Sweep Mode _________________________________________________ 85
Figure 13: Typical Sweeps in Constant Window Mode________________________________________________ 86
Figure 14: CPU Sweep in Stop-I/O Disabled and Stop-I/O Enabled Modes ________________________________ 89
Figure 15: CPE330 Overlapping Local IP Subnet Example ____________________________________________ 120
Figure 16: Expected Response Path _____________________________________________________________ 122
Figure 17: Actual Response Path________________________________________________________________ 122
Figure 18: COM1 Port CPE400/CPL410 ___________________________________________________________ 128
Figure 19: COMMREQ Example_________________________________________________________________ 136
Figure 20: RTU Message Transactions ___________________________________________________________ 160
Figure 21: RTU Read Output Table Example_______________________________________________________ 163
Figure 22: CRC Register Operation ______________________________________________________________ 166
Figure 23: RTU Read Output Table Message Format ________________________________________________ 170
Figure 24: RTU Read Input Table Message Format _________________________________________________ 171
Figure 25: RTU Read Registers Message Format ___________________________________________________ 172
Figure 26: RTU Read Analog Inputs Message Format _______________________________________________ 173
Figure 27: RTU Force Single Output Message Format _______________________________________________ 174
Figure 28: RTU Preset Single Register Message Format _____________________________________________ 175
Figure 29: RTU Read Exception Status Message Format _____________________________________________ 176
Figure 30: RTU Loopback/Maintenance Message Format____________________________________________ 177
Figure 31: RTU Force Multiple Outputs Message Format ____________________________________________ 179
Figure 32: RTU Preset Multiple Registers Message Format ___________________________________________ 180
Figure 33: RTU Report Device Type Message Format _______________________________________________ 181
Figure 34: RTU Read Scratch Pad Memory Message Format _________________________________________ 186
Figure 35: RTU Error Response Format___________________________________________________________ 188
Figure 36: Interrupt Execution Considerations _____________________________________________________ 219
Figure 37: Interrupt Execution Considerations _____________________________________________________ 219

Introduction 1
Section 1: Introduction
This manual contains general information about PACSystems CPU operation and product features.
Section 1 provides a general introduction to the PACSystems family of products, including new features,
product overviews, and a list of related documentation.
CPU Features & Specifications are provided in Section 2:.
Installation procedures for the different platforms are described in their respective manuals as given below:
1. PACSystems RX7i Installation Manual, GFK-2223.
2. PACSystems RX3i System Manual, GFK-2314.
3. RSTi-EP User Manual, GFK-2958.
CPU Programming is covered in PACSystems RX3i and RSTi-EP CPU Programmer’s Reference Manual, GFK-2950.
It provides an overview of program structure and describes the various languages which may be used, their
syntax and operation, and provides examples.
CPU Configuration is described in Section 3:. Configuration using the proprietary PACMachine Edition™(PME)
programming and configuration software package determines characteristics of CPU, System and module
operation. It also establishes the program references used by each module in the system. For details on
configuration of RX3i Ethernet Interface modules, refer to PACSystems RX3i and RSTi-EP TCP/IP Ethernet
Communications User Manual, GFK-2224.
CPU Operation is described in Section 4:.
Ethernet Communications and Serial Communications are described in Section 5:.
Serial I/O, SNP & RTU Protocols are described in Section 6:.
Performance Data, including Instruction Timing, is provided in Appendix A:.
User Memory Allocation is described in A-4.

PACSystems™ RX3i and RSTi-EP CPU Reference Manual Section 1
GFK-2222AK October 2019
Introduction 2
1.1 Revisions in this Manual
Note: A given feature may not be implemented on all PACSystems CPUs. To determine
whether a feature is available on a given CPU model and firmware version, please refer to
the Important Product Information (IPI) document provided for the CPU version that you
are using.
Rev
Date
Description
AK
Oct-
2019
▪Updated to reflect updated capabilities of FW 9.90
▪Following Emerson’s acquisition of this product, changes have been made to apply
appropriate branding and registration of the product with required certification
agencies.
AJ
Jun-
2019
▪Updated the Appendix A on Boolean Execution for clarity.
AH
Apr-
2019
▪CPE400/CPL410 added ability to recover from STOP-Halt mode.
▪CPE330 supports HSB CPU redundancy with Single RMX. This support includes
CRU320 compatibly mode. Dual RMX configuration is no longer a requirement.1
AG
Nov-
2018
▪CPE330/CPE400/CPL410 increased block count from 512 to 768 including _Main
AF
Aug-
2018
▪SoE and other minor changes for CPE330
▪European DST correction
AE
Jul-
2018
▪Addition of IC695CPL410, CPU with Linux.
▪Addition of IC695PNS101.
AD
Apr-
2018
▪Added CPE115 module
AC
Feb-
2018
▪Updated throughout for addition of CPE302 (initial firmware version 9.40).
▪CPE400 Serial IO feature added
▪New Authorized Firmware Update feature noted (part of RX3i firmware version
9.40).
1
Requires PME 9.50 SIM 14 or later and CPE330 firmware 9.75 or later.

PACSystems™ RX3i and RSTi-EP CPU Reference Manual Section 1
GFK-2222AK October 2019
Introduction 3
Rev
Date
Description
AB
Oct-
2017
▪Added Redundancy features for CPE400
▪Updated Field Agent information for CPE400.
▪Updated Section 2.2 for new features of CPE400.
▪Added Section 2.1.10 on CPU Over-Temperature behavior.
AA
Sep-
2017
▪Addition of support for Media Redundancy Protocol (MRP) on CPE100.
Z
May-
2017
▪Addition of RSTi-EP EPSCPE100 (new product) and updated other relevant sections.
▪Addition of Simple Network Time Protocol (SNTP), Coordinated Universal Time
(UTC), and Daylight Savings Time (DST) features forCPE305, CPE310, CPE330, and
CPE400.
Y
Dec-
2016
▪Added section on CPE400 and incorporated into CPU comparison table
(section 2.2). This section also introduces Field Agent and documents how to set up
Embedded Field Agent for the CPE400 (section
▪Added section 2.1.5, Embedded PROFINET Controller.
▪Update of Energy Pack Section 4.10.3.3 to include ACC403 and compatibility
matrix.
▪Added compatibility mode information for CPE330 with CPU320 & CRU320
X
Feb-
2016
▪Corrected Ethernet Indicators CPE305 & CPE310 table.
W
Aug-
2015
▪Addition of support for Ethernet Global Data (Class 1) on CPE330
V
Jun-
2015
▪Addition of RX3i CPE330 (new product) and related Ethernet considerations.
▪Update of Energy Pack Section 4.10.3.3 to include ACC402 and compatibility
matrix.
▪Addition of HART®Pass Through feature (see page 9).
▪Addition of CPU Comparison Charts
▪Update of Communications Section (Section 5:). Added Serial Port Electrical
Isolation.
▪Removed original Sections 5-11 (Sections dealing with CPU programming) and
Section 14 (Diagnostics). These are now in PACSystems RX3i CPU Programmer’s
Reference Manual, GFK-2950 (Sections 2-8 and Section 9 respectively).

PACSystems™ RX3i and RSTi-EP CPU Reference Manual Section 1
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Introduction 4
Rev
Date
Description
U
Nov-
2014
▪New Section, A-3.6 for EGD Sweep Impact for RX3i CPE302/CPE305/CPE310 and
RSTi-EP CPE100/CPE115 Embedded Ethernet Interface.
T
Oct-
2014
▪Support for OPC UA using embedded Ethernet port in CPE305/CPE310 with CPU
firmware 8.20.
▪Support for Ethernet Global Data (EGD Class 1) using embedded Ethernet port in
CPE305/CPE310 with CPU firmware 8.30 Sweep impact of EGD on Embedded
Ethernet interface. Direct replacement for S90-30 IC693CPU374.
▪New communications capabilities provided by:
oIC695PNS001 –PROFINET Scanner Module
oIC695GCG001 –Genius Communications Gateway via PROFINET
oIC695EDS001 –Ethernet based DNP3 Outstation
S
July-
2013
▪Support for Modbus/TCP Server, SRTP channels and Modbus/TCP client channels on
RX3i CPE305/CPE310 embedded Ethernet interface –Section 2: & Section 5:
▪Support for Access Control List –Section 3:
▪Modbus TCP/IP mapping for CPE305/CPE310 –Section 3:0
▪Enhanced Security Passwords and OEM Protection –Section 4:
▪Serial I/O protocol enhancements (Data Set Ready, Ring Indicator, and Data Carrier
Detect) –Section 6:
▪Diagnostics for PROFINET alarms and PROFINET network faults, including
#PNIO_ALARM, SA0030 –refer to PACSystems RX7i and RX3i CPU Programmer’s
Reference Manual, GFK-2950 Section 3 & Section 9.
▪Instruction executions times measured for RX3i CPU320/CRU320 –Appendix A:
▪Sweep impact times for new modules: IC694MDL758, IC694APU300-CA and later,
IC695PNS001, IC694ALG442, IC694ALG220, IC694MDL645 and IC694MDL740–
Appendix A:

PACSystems™ RX3i and RSTi-EP CPU Reference Manual Section 1
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Introduction 5
Rev
Date
Description
earlier
▪Added instructions for replacing the RX3i CPE305/CPE310 real-time clock battery:
Section 2:.
▪Corrected definitions of reverse acting and direct acting modes for PID functions:
refer to PACSystems RX7i and RX3i CPU Programmer’s Reference Manual,
GFK-2950 Section 7.
▪Expanded data for Boolean execution measurements –Appendix A:
▪Re-instated instruction times for RX7i CPE030/CRE030/CPE040 release 6.0 as
published in version Q of the manual (unintentionally omitted from version R) –
Appendix A:
▪Compatibility information for volatile memory backup batteries has been
consolidated in the PACSystems Battery and Energy Pack Manual, GFK-2741 –
throughout
1.2 PACSystems Control System Overview
The PACSystems controller environment combines performance, productivity, openness
and flexibility. The PACSystems control system integrates advanced technology with
existing systems. The result is seamless migration that protects your investment in I/O
and application development.
1.2.1 Programming and Configuration
PAC Machine Edition programming software provides a universal engineering
development environment for all programming, configuration and diagnostics of
PACSystems. A PACSystems CPU is programmed and configured using the programming
software to perform process and discrete automation for various applications. The CPU
communicates with I/O and smart option modules through a rack-mounted backplane. It
communicates with the programmer and/or HMI devices via the Ethernet ports or via the
serial ports COM1 and COM2 using Serial I/O, or Modbus RTU slave protocols.
1.2.2 Process Systems
PACSystems CPUs with firmware version 5.0 and later support PACProcess Systems (PPS).
PPS is a complete, tightly integrated, seamless process control system using PACSystems,
PACHMI/SCADA, and PACProduction Management Software to provide control,
optimization, and performance management to manage and monitor batch or
continuous manufacturing. It delivers the tools required to design, implement,
document, and maintain an automated process. For information about purchasing PPS
software, refer to the Support website.

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Introduction 6
1.2.3 PACSystems CPU Models
Family
Catalog #
Description
RSTi-EP Standalone CPUs
EPSCPE100
1 MB user memory
EPSCPE115
1.5 MB user memory
RX3i Standalone CPUs with
embedded Ethernet/PROFINET
Interface
IC695CPE400
64 MB user memory with
Field Agent
IC695CPL410
64 MB user memory with
Linux
RX3i CPUs with embedded
Ethernet/PROFINET Interface
IC695CPE330
64 MB user memory
RX3i CPUs with embedded
Ethernet Interface2
IC695CPE302
2 MB user memory
IC695CPE305
5 MB user memory
IC695CPE310
10 MB user memory
RX3i CPUs
IC695CPU310
10 MB user memory
IC695CPU315
20 MB user memory
IC695CPU320
64 MB user memory
IC695NIU001+
versions –AAAA
& later
For information, refer to
the PACSystems RX3i
Ethernet Network Interface
Unit User’s Manual,
GFK-2439
IC695NIU001
For information, refer to
the PACSystems RX3i
Ethernet Network Interface
Unit User’s Manual,
GFK-2439
RX3i Redundancy CPU
IC695CRU320
64 MB user memory
2
The RX3i CPE302/CPE305/CPE310 embedded Ethernet interface provides a maximum of two programmer connections. It does not support the
full set of Ethernet interface features described in this manual. For a summary of RX3i embedded Ethernet interface features, refer to
PACSystems RX3i TCP/IP Ethernet Communications User Manual, GFK-2224K or later.

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Introduction 7
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:
▪High-speed PCI for fast throughput of new advanced I/O.
▪Serial backplane for easy migration of existing Series 90-30 I/O
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:
▪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, CPE30511, 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.

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Introduction 8
▪Effective with CPE310/CPE305 firmware version 8.20, or CPE330 firmware version
8.45, the CPE embedded Ethernet port supports OPC UA Server. This feature is
available on all firmware versions of CPE400 and CPL410. Refer to PACSystems RX3i
TCP/IP Ethernet Communications User Manual, GFK-2224 version M or higher (Section
10).
▪Effective with RX3i firmware version 8.30
3
, the CPE310/CPE305 CPUs also support
Ethernet Global Data (EGD). Prior to that firmware version, EGD was only available in
the RX3i via the RX3i Ethernet Interface Module (IC695ETM001). With this upgrade,
these CPUs are positioned as a direct replacement for S90-30 IC693CPU374.
▪Effective with RX3i firmware version 8.60
4
, the CPE330 supports Ethernet Global
Data (EGD) Class 1. This feature is available on all firmware versions of CPE400
5
,
CPL410
6
and CPE30211.
▪The rack-based IC695ETM001 Ethernet Interface has dual RJ45 ports connected
through an auto-sensing switch. This eliminates the need for rack-to-rack switches
or hubs. The ETM001 supports upload, download and online monitoring, and
provides 32 SRTP channels with a maximum of 48 simultaneous SRTP server
connections. It also supports Modbus TCP. For details on Ethernet Interface
capabilities, refer to PACSystems RX3i TCP/IP Ethernet Communications User Manual,
GFK-2224.
▪PROFIBUS communications via the PROFIBUS Master module, IC695PBM300. For
details, refer to the PACSystems RX3i PROFIBUS Modules User’s Manual, GFK-2301.
▪PROFINET communications via any supported PROFINET Controller and any
supported PROFINET Scanner.
▪Supported PROFINET Controllers include the embedded PROFINET Controller
function offered by IC695CPE400 and IC695CPE330, and the rack-mounted
PROFINET Controller module IC695PNC001.
▪Supported PROFINET Scanners include the RX3i PROFINET Scanner modules
IC695PNS001
7
, IC695PNS101, the RX3i IC695CEP001, and the VersaMax PROFINET
Scanner modules IC200PNS001 and IC200PNS002.
▪For details, refer to the PACSystems RX3i PROFINET IO-Controller Manual, GFK-
2571F or later and PACSystems RX3i PROFINET Scanner Manual, GFK-2737F or later.
▪Effective with the release of IC695CEP001 and IC694CEE001, the RX3i may be
configured to control a remote drop consisting of one or two I/O modules. The RX3i
interface to the remote drop is managed by the PROFINET Controller, IC695PNC001.
3
PAC Machine Edition Release 8.50 SIM 7 is required for EGD Class 1 on Embedded Ethernet interface of CPE305/CPE310.
4
PAC Machine Edition Release 8.60 SIM 5 is required for EGD Class 1 on both LAN1 and LAN2 of CPE330. This PME version also supports
Advanced Configuration Parameters for EGD on CPE330. Alternately, PME Release 8.60 (not SIM 5) supports EGD on CPE330 LAN1 only, and
does not support Advanced Configuration Parameters for EGD.
5
PAC Machine Edition Release 9.00 SIM 8 or later is required for native configuration support of the CPE400.
6
PAC Machine Edition Release 9.50 SIM 10 or later is required for native configuration support of the CPL410.
7
IC695PNS001 firmware version 2.40 added support for a number of I/O modules not previously supported, as documented in PACSystems RX3i
PROFINET Scanner Important Product Information, GFK-2738L.

PACSystems™ RX3i and RSTi-EP CPU Reference Manual Section 1
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Introduction 9
▪Effective with the release of IC695GCG001, the RX3i may be equipped to control a
Genius Bus. The RX3i interface to the Genius Gateway is managed by the PROFINET
Controller, IC695PNC001. Refer to PACSystems RX3i Genius Communications Gateway
User Manual, GFK-2892.
▪Effective with the release of IC695EDS001, the RX3i may be configured as a DNP3
Outstation. Refer to PACSystems RX3i DNP3 Outstation Module IC695EDS001User’s
Manual, GFK-2911.
▪Effective with the release of IC695EIS001, the RX3i may be configured to act as an
IEC 104 Server. Refer to PACSystems RX3i IEC 104 Server Module IC695EIS001 User’s
Manual, GFK-2949.
▪PROFINET Scanner User Manual, GFK-2883.
▪HART Pass Through allows an RX3i CPU to communicate HART asset management
data between HART-capable I/O modules and PC-based asset management tools.
This entails usage of PC-based applications, RX3i Analog modules with HART
functionality and (optionally) supporting PROFINET products. HART Pass Through
operation is described in the PACSystems HART Pass Through User Manual, GFK-2929.
▪The following RX3i CPUs support HART Pass Through: IC695CPE305, IC695CPE310,
IC695CPU315, IC695CPU320, IC695CRU320, IC695CPE330
8
,
9
(firmware version
8.50 or later). All versions of IC695CPE30211 support this feature.
The following RX3i analog modules support HART:
IC695ALG626
IC695ALG628
IC695ALG728
If used for HART Pass Through, the supporting RX3i PROFINET Controller and PROFINET
Scanner must also contain HART-compatible firmware:
IC695PNC001-AK firmware version 2.20
IC695PNS001-ABAH firmware version 2.30
10
IC695PNS101-AAAA firmware version 3.10
IC695CEP001-AAAD firmware version 2.30.
▪IC695CMM002 and IC695CMM004 expand the serial communications capability of
the RX3i system. Refer to PACSystems RX3i Serial Communications Modules User’s
Manual, GFK-2460.
▪CPE310, CPU310, CPU315, CPU/CRU320 and NIU001 provide two serial ports, one
RS-232 and one RS-485.
8
When used to support HART Pass Through, CPE330 must do so via a PNC001 and cannot employ its embedded PROFINET feature for this
purpose.
9
IC695CPE330 firmware version 8.95 added support for the Remote Get HART Device Information COMMREQ.
10
IC695PNS001 firmware version 2.41 added support for the Remote Get HART Device Information COMMREQ not previously supported, as
documented in PACSystems RX3i PROFINET Scanner Important Product Information, GFK-2738L. The syntax and usage for this COMMREQ are
described in the PACSystems RX3i System Manual, GFK-2314M or later.

PACSystems™ RX3i and RSTi-EP CPU Reference Manual Section 1
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Introduction 10
▪CPE400 (firmware version 9.40), CPL410, CPE302 and CPE305 each provides one RS-
232 serial port.
▪CPE330 provides no serial ports.
▪Effective with CPE302 firmware version 9.40
11
, CPE305/CPE310/CPE400
12
firmware
version 9.20, or CPE330 firmware version 9.21, the CPE embedded Ethernet
interface supports Simple Network Time Protocol (SNTP) Client, Coordinated
Universal Time (UTC), and Daylight Savings Time (DST). Refer to PACSystems RX3i and
RSTi-EP TCP/IP Ethernet Communications User Manual, GFK-2224 version Q or higher.
CPL410 supports this feature in all firmware versions.
▪Effective with RX3i firmware version 9.40, the Authorized Firmware Update
functionality is available. Users may now authorize access to firmware updates using
a custom password. Details are included in the revised firmware update instructions.
▪Effective with CPE330 firmware version 9.60, Sequence of Events functionality is
available. Refer to PACSystems RX3i Sequence of Events User Manual, GFK-3050.
▪Effective with CPE330 firmware version 9.75, Hot Standby CPU redundancy is
supported with a single RMX per rack. Refer to the PACSystems Hot Standby CPE
Redundancy User Manual, GFK-2308.
▪CPE400 and CPL410 firmware version 9.75 provide a mechanism to recover from
STOP-Halt mode using the OLED Display and without removing the Energy Pack.
1.4 RSTi-EP Overview
RSTi-EP CPUs make it possible to incorporate the entire PACSystems programming suite
in stand-alone applications or as auxiliary control in larger process applications that use
RX3i. They allow the User to leverage the power and flexibility of PACSystems in smaller
applications.
At a high level, CPE100/CPE115 supports real-time application status, remote
diagnostics and:
▪Dual LAN interfaces with four Ethernet ports
▪Built-in RS-232 serial port
▪Support for a range of communications protocols, including PROFINET
▪Up to 1 MB of non-volatile user memory.
▪All in just 1.5” (38.1mm) of DIN rail space.
CPE100/CPE115 supports two independent 10/100 Ethernet LANs. LAN1 has only one
port and is dedicated to highspeed Ethernet and whereas LAN2 is comprised of three
switched ports (labelled as 2, 3 & 4) configurable as either a second embedded Ethernet
11
PAC Machine Edition Release 9.50 SIM 7 or later is required for CPE302 configuration.
12
PAC Machine Edition Release 9.00 SIM 10, or 9.50 SIM 2, or later is required for SNTP Client, UTC, and DST support.

PACSystems™ RX3i and RSTi-EP CPU Reference Manual Section 1
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Introduction 11
controller or an embedded PROFINET controller. All four ports are located on the front
panel of the CPU.
The Ethernet controller Interface of CPE100/CPE115 provides Transmission Control
Protocol and Internet Protocol (TCP/IP) communications with other control systems, host
computers running the Host Communications Toolkit or programmer software, and
computers running the TCP/IP version of the programming software. These
communications use the Service Request Transport Protocol (SRTP), Modbus TCP, and
Ethernet Global Data (EGD) protocols over a four-layer TCP/IP (Internet) stack.
The RSTi-EP CPE100/CPE115 also embeds an industry standard PROFINET controller that
allows it to connect to any type of PROFINET I/O solutions either from GE or any third
party. It offers enhanced productivity, flexibility and performance advantages for virtually
any type of control application in a range of industries. PROFINET supports a variety of I/O
without compromising system performance and can operate in high-noise environments.
The RSTi-EP CPE100/CPE115 is secure by design, incorporating technologies such as
Trusted Platform Modules (currently disabled) and verified boot. Centralized
configuration allows encrypted firmware updates to be executed from a secure central
location.
1.5 Migrating Series 90 Applications to PACSystems
The PACSystems control system provides cost-effective expansion of existing systems.
Support for existing Series 90 modules, expansion racks and remote racks protects your
hardware investment. You can upgrade on your timetable without disturbing panel
wiring.
▪The RX3i supports most Series 90-30 modules, expansion racks, and remote racks.
For a list of supported I/O, Communications, Motion, and Intelligent modules, see
the PACSystems RX3i System Manual, GFK-2314.
▪The supports most existing Series 90-70 modules, expansion racks and Genius
networks. For a list of supported I/O, Communications, and Intelligent modules, see
the PACSystems Installation Manual, GFK-2223.
▪Conversion of Series 90-70 and Series 90-30 programs preserves existing
development effort.
▪Conversion of VersaPro and Logicmaster applications to Machine Edition allows
smooth transition to PACSystems.

PACSystems™ RX3i and RSTi-EP CPU Reference Manual Section 1
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Introduction 12
1.6 Documentation
1.6.1 PACSystems Manuals
PACSystems RX3i and RSTi-EP CPU Reference Manual
GFK-2222
PACSystems RX3i and RSTi-EP CPU Programmer’s Reference Manual
GFK-2950
PACSystems RX3i and RSTi-EP TCP/IP Ethernet Communications User
Manual
GFK-2224
PACSystems TCP/IP Ethernet Communications Station Manager User
Manual
GFK-2225
C Programmer’s Toolkit for PACSystems
GFK-2259
PACSystems Memory Xchange Modules User’s Manual
GFK-2300
PACSystems Hot Standby CPU Redundancy User Manual
GFK-2308
PACSystems Battery and Energy Pack Manual
GFK-2741
PACMachine Edition Logic Developer Getting Started
GFK-1918
PACProcess Systems Getting Started Guide
GFK-2487
PACSystems RXi, RX3i Controller Secure Deployment Guide
GFK-2830
1.6.2 RX3i Manuals
PACSystems RX3i System Manual
GFK-2314
PACSystems RX3i IC695CPL410 1.2GHz 64MB Rackless CPU w/Linux QSG
GFK-3053
PACSystems RX3i IC695CPE400 1.2GHz 64MB Rackless CPU w/Field
Agent QSG
GFK-3002
PACSystems RX3i IC695ACC403 Rackless Energy Pack Quick Start Guide
GFK-3000
PACSystems RX3i IC695CPE330 1GHz 64MB CPU w/Ethernet Quick Start
Guide
GFK-2941
PACSystems RX3i Sequence of Events User Manual
GFK-3050
PACSystems RX3i IC695ACC402 Energy Pack Quick Start Guide
GFK-2939
PACSystems RX3i IC695ACC400 Energy Pack Data Sheet
GFK-2724
DSM324i Motion Controller for PACSystems RX3i and Series 90-30 User’s
Manual
GFK-2347
PACSystems RX3i PROFIBUS Modules User’s Manual
GFK-2301