GE PACSystems RX7i User manual

GE
Automation & Controls
For Public Disclosure
Programmable Control Products
RX7i, RX3i and RSTi-EP CPU
Reference Manual GFK-2222AD
PACSystems*
RX7i, RX3i and RSTi-EP
CPU Reference Manual
GFK-2222AD
April 2018

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GFK-2222AD April 2018 i
Table of Contents
RX7i, RX3i and RSTi-EP CPU Reference Manual GFK-2222AD
Table of Contents ....................................................................................................................................... i
Table of Figures ........................................................................................................................................ vi
Chapter 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 .......................................................................................................................8
1.4 RX7i Overview .....................................................................................................................11
1.5 RSTi-EP Overview................................................................................................................12
1.6 Migrating Series 90 Applications to PACSystems..........................................................13
1.7 Documentation....................................................................................................................14
Chapter 2 CPU Features & Specifications ...................................................................................17
2.1 Common CPU Features.......................................................................................................18
2.1.1 Features Shared by All PACSystems CPU Models............................................................................................... 18
2.1.2 Features Shared by Certain PACSystems CPU Models..................................................................................... 19
2.1.3 Firmware Storage in Flash Memory ........................................................................................................................... 20
2.1.4 Operation, Protection, and Module Status ............................................................................................................. 20
2.1.5 Ethernet Global Data ........................................................................................................................................................ 20
2.1.6 Embedded PROFINET Controller ................................................................................................................................. 21
2.1.7 OPC UA..................................................................................................................................................................................... 22
2.1.8 Removable Data Storage Devices (RDSDs)............................................................................................................. 23
2.1.9 CPU Over-Temperature Monitoring and Behavior.............................................................................................. 28
2.2 RX3i CPU Features and Specifications .............................................................................29
2.2.1 CPE400..................................................................................................................................................................................... 35
2.2.2 CPE330..................................................................................................................................................................................... 61
2.2.3 CPE302, CPE305 and CPE310 ....................................................................................................................................... 70
2.2.4 CPU315 and CPU320/CRU320...................................................................................................................................... 79
2.2.5 CPU310 .................................................................................................................................................................................... 82

Contents
ii PACSystems* RX7i, RX3i and RSTi-EP CPU Reference Manual GFK-2222AD
2.3 RX7i CPU Features and Specifications............................................................................. 84
2.3.1 CPE030/CRE030 and CPE040/CRE040...................................................................................................................... 89
2.3.2 CPE010, CPE020 and CRE020 ....................................................................................................................................... 91
2.3.3 RX7i Embedded Ethernet Interface............................................................................................................................ 93
2.4 RSTi-EP CPU Features and Specifications ....................................................................... 98
2.4.1 CPE100/CPE115................................................................................................................................................................ 101
Chapter 3 CPU Configuration .....................................................................................................109
3.1 Configuring the CPU .........................................................................................................110
3.2 Configuration Parameters...............................................................................................111
3.2.1 Settings Parameters ....................................................................................................................................................... 111
3.2.2 Modbus TCP Address Map ........................................................................................................................................... 114
3.2.3 SNTP ....................................................................................................................................................................................... 115
3.2.4 Time........................................................................................................................................................................................ 116
3.2.5 Scan Parameters .............................................................................................................................................................. 117
3.2.6 Memory Parameters....................................................................................................................................................... 120
3.2.7 Fault Parameters.............................................................................................................................................................. 123
3.2.8 Redundancy Parameters (Redundancy CPUs Only)......................................................................................... 125
3.2.9 Transfer List........................................................................................................................................................................ 125
3.2.10 COM1 and COM2 Parameters.................................................................................................................................... 126
3.2.11 Scan Sets Parameters.................................................................................................................................................... 130
3.2.12 Power Consumption Parameters ............................................................................................................................. 130
3.2.13 Access Control................................................................................................................................................................... 131
3.2.14 OPC UA Parameters........................................................................................................................................................ 132
3.3 Storing (Downloading) Hardware Configuration .........................................................133
3.4 Configuring the Embedded Ethernet Interface ............................................................134
3.4.1 Establishing Initial Ethernet Communications .................................................................................................. 135
3.4.2 Setting a Temporary IP Address................................................................................................................................ 137
Chapter 4 CPU Operation............................................................................................................139
4.1 CPU Sweep.........................................................................................................................140
4.1.1 Parts of the CPU Sweep ................................................................................................................................................ 141
4.1.2 CPU Sweep Modes........................................................................................................................................................... 144
4.2 Program Scheduling Modes.............................................................................................146
4.3 Window Modes .................................................................................................................147
4.4 Data Coherency in Communications Windows............................................................148
4.5 Run/Stop Operations .......................................................................................................149
4.5.1 CPU STOP Modes.............................................................................................................................................................. 150
4.5.2 STOP-to-RUN Mode Transition.................................................................................................................................. 152

Contents
GFK-2222AD April 2018 iii
4.5.3 RUN/STOP Switch Operation ......................................................................................................................................152
4.6 Flash Memory Operation................................................................................................. 153
4.7 Logic/Configuration Source and CPU Operating Mode at Power-Up........................ 154
4.7.1 CPU Mode when Memory Not Preserved/Power-up Source is Flash .......................................................155
4.7.2 CPU Mode when Memory Preserved .......................................................................................................................156
4.8 Clocks and Timers ............................................................................................................ 157
4.8.1 Elapsed Time Clock ..........................................................................................................................................................157
4.8.2 Time-of-Day Clock ............................................................................................................................................................158
4.8.3 Watchdog Timer................................................................................................................................................................159
4.9 System Security................................................................................................................ 161
4.9.1 Passwords and Privilege Levels - Legacy Mode..................................................................................................162
4.9.2 OEM Protection –Legacy Mode .................................................................................................................................164
4.9.3 Enhanced Security for Passwords and OEM Protection.................................................................................165
4.9.4 Legacy/Enhanced Security Comparison.................................................................................................................166
4.10 PACSystems I/O System.................................................................................................. 167
4.10.1 I/O Configuration...............................................................................................................................................................168
4.10.2 Genius I/O.............................................................................................................................................................................170
4.10.3 I/O System Diagnostic Data Collection...................................................................................................................172
4.11 Power-Up and Power-Down Sequences ....................................................................... 174
4.11.1 Power-Up Sequence ........................................................................................................................................................174
4.11.2 Power-Down Sequence..................................................................................................................................................175
4.11.3 Power Cycle Operation with an Energy Pack.......................................................................................................176
4.11.4 Retention of Data Memory Across Power Failure .............................................................................................179
Chapter 5 Communications........................................................................................................ 181
5.1 Ethernet Communications.............................................................................................. 182
5.1.1 Embedded Ethernet Interface ....................................................................................................................................182
5.1.2 Ethernet Interface Modules .........................................................................................................................................187
5.2 Serial Communications ................................................................................................... 188
5.2.1 Serial Port Communications Capabilities..............................................................................................................188
5.2.2 Configurable STOP Mode Protocols .........................................................................................................................190
5.2.3 Serial Port Pin Assignments.........................................................................................................................................191
5.2.4 Serial Port Electrical Isolation .....................................................................................................................................195
5.2.5 Serial Cable Lengths and Shielding ..........................................................................................................................196
5.2.6 Serial Port Baud Rates....................................................................................................................................................197
5.3 Series 90-70 Communications and Intelligent Option Modules ............................... 198
5.3.1 Communications Coprocessor Module (CMM) ...................................................................................................198
5.3.2 Programmable Coprocessor Module (PCM) .........................................................................................................199
5.3.3 DLAN/DLAN+ (Drives Local Area Network) Interface ......................................................................................200

Contents
iv PACSystems* RX7i, RX3i and RSTi-EP CPU Reference Manual GFK-2222AD
Chapter 6 Serial I/O, SNP & RTU Protocols ...............................................................................201
6.1 Configuring Serial Ports Using COMMREQ Function 65520 .......................................202
6.1.1 COMMREQ Function Example.................................................................................................................................... 202
6.1.2 Timing .................................................................................................................................................................................... 202
6.1.3 Sending Another COMMREQ to the Same Port ................................................................................................. 202
6.1.4 Invalid Port Configuration Combinations ............................................................................................................. 203
6.1.5 COMMREQ Command Block Parameter Values................................................................................................ 204
6.1.6 Example COMMREQ Command Blocks for Serial Port Setup function................................................... 205
6.2 Serial I/O Protocol.............................................................................................................208
6.2.1 Calling Serial I/O COMMREQs from the CPU Sweep........................................................................................ 208
6.2.2 Compatibility...................................................................................................................................................................... 208
6.2.3 Status Word for Serial I/O COMMREQs ................................................................................................................. 208
6.2.4 Serial I/O COMMREQ Commands ............................................................................................................................. 210
6.2.5 Overlapping COMMREQs.............................................................................................................................................. 211
6.2.6 Initialize Port Function (4300).................................................................................................................................... 212
6.2.7 Set Up Input Buffer Function (4301) ....................................................................................................................... 213
6.2.8 Flush Input Buffer Function (4302) .......................................................................................................................... 214
6.2.9 Read Port Status Function (4303) ............................................................................................................................ 215
6.2.10 Write Port Control Function (4304)......................................................................................................................... 217
6.2.11 Cancel COMMREQ Function (4399)......................................................................................................................... 218
6.2.12 Autodial Function (4400).............................................................................................................................................. 219
6.2.13 Write Bytes Function (4401)....................................................................................................................................... 221
6.2.14 Read Bytes Function (4402) ........................................................................................................................................ 222
6.2.15 Read String Function (4403) ....................................................................................................................................... 224
6.3 RTU Slave Protocol ...........................................................................................................226
6.3.1 Message Format ............................................................................................................................................................... 227
6.3.2 Cyclic Redundancy Check (CRC)................................................................................................................................ 232
6.3.3 RTU Message Descriptions .......................................................................................................................................... 236
6.3.4 RTU Scratch Pad ............................................................................................................................................................... 252
6.3.5 Communication Errors .................................................................................................................................................. 253
6.3.6 RTU Slave/SNP Slave Operation with Programmer Attached..................................................................... 256
6.4 SNP Slave Protocol ...........................................................................................................257
6.4.1 Permanent Datagrams .................................................................................................................................................. 257
6.4.2 Communication Requests (COMMREQs) for SNP............................................................................................. 257
Appendix A Performance Data ...........................................................................................................259
A-1 Boolean Execution Times .............................................................................................................260
A-1.1 Boolean Execution Measurements (ms per 1000 Boolean executions)................................................. 260
A-2 Instruction Timing.........................................................................................................................261
A-2.1 Overview .............................................................................................................................................................................. 261
A-2.2 PLC Version Information............................................................................................................................................... 262

Contents
GFK-2222AD April 2018 v
A-2.3 RX3i & RSTi-EP Instruction Times .............................................................................................................................263
A-2.4 RX7i Instruction Times ...................................................................................................................................................264
A-3 Overhead Sweep Impact Times .................................................................................................. 275
A-3.1 Base Sweep Times............................................................................................................................................................276
A-3.2 What the Sweep Impact Tables Contain ...............................................................................................................278
A-3.3 Programmer Sweep Impact Times ...........................................................................................................................279
A-3.4 I/O Scan and I/O Fault Sweep Impact......................................................................................................................280
A-3.5 Ethernet Global Data Sweep Impact .......................................................................................................................287
A-3.6 EGD Sweep Impact for Embedded Ethernet Interface on RX3i & RSTi-EP CPE Models ..................290
A-3.7 Sweep Impact of Intelligent Option Modules ......................................................................................................294
A-3.8 I/O Interrupt Performance and Sweep Impact....................................................................................................297
A-3.9 Timed Interrupt Performance .....................................................................................................................................300
A-3.10 Example of Predicted Sweep Time Calculation .................................................................................................301
Appendix B User Memory Allocation ................................................................................................ 303
B-1 Items that Count Against User Memory .................................................................................... 304
B-2 User Program Memory Usage...................................................................................................... 305
B-2.1 %L and %P Program Memory......................................................................................................................................305
B-2.2 Program Logic and Overhead......................................................................................................................................305

Contents
vi PACSystems* RX7i, RX3i and RSTi-EP CPU Reference Manual GFK-2222AD
Table of Figures
Figure 1: Configuring an Embedded PROFINET Controller_____________________________________________ 21
Figure 2: CPE400 Front View and Features ________________________________________________________ 35
Figure 3: CPE400 Underside Ports & Connectors ____________________________________________________ 39
Figure 4: CPE400 Micro-SD & USB Pinouts _________________________________________________________ 41
Figure 5: Typical Field Agent Application __________________________________________________________ 45
Figure 6: Login to Predix _______________________________________________________________________ 46
Figure 7: Predix Change Password _______________________________________________________________ 47
Figure 8: Log Service Page _____________________________________________________________________ 47
Figure 9: Technician Console, Network Configuration page ___________________________________________ 48
Figure 10: Enter Proxy Server Address ____________________________________________________________ 49
Figure 11: Test Connection _____________________________________________________________________ 49
Figure 12: Technician Console, Time Sync Configuration______________________________________________ 50
Figure 13: LAN3 Interconnects for Hot Standby Redundancy __________________________________________ 53
Figure 14: Display Port Connector _______________________________________________________________ 55
Figure 15: Location of RTC battery on CPE400 ______________________________________________________ 57
Figure 16: DIN-Rail Mount Bracket Assembly CPE400 _______________________________________________ 60
Figure 17: Panel-Mount Bracket Assembly CPE400 _________________________________________________ 60
Figure 18: CPE330 Front View & Features _________________________________________________________ 61
Figure 19: CPE330 RUN/STOP Switch and RDSD Switches_____________________________________________ 63
Figure 20: Location and Orientation of Real-Time Clock Battery in CPE330 _______________________________ 66
Figure 21: IC695CPE302/CPE305 Front View _______________________________________________________ 70
Figure 22: IC695CPE310 Front View ______________________________________________________________ 70
Figure 23: External Features of CPE302/CPE305 ____________________________________________________ 72
Figure 24: External Features of CPE310 ___________________________________________________________ 72
Figure 25: Accessing Real-Time Clock Battery (CPE302, CPE305 and CPE310) _____________________________ 75
Figure 26: Sample Tool for Coin Battery Extraction __________________________________________________ 76
Figure 27: IC695CPU320 Front View______________________________________________________________ 79
Figure 28: IC695CPU310 Front View______________________________________________________________ 82
Figure 29: CPE040 Front View___________________________________________________________________ 89
Figure 30: CPE010 Front View___________________________________________________________________ 91
Figure 31: CPE100/CPE115 Front, Top and Bottom Views and Features ________________________________ 101
Figure 32: CPE100/CPE115 Membrane Pushbutton and Module Status LEDs ____________________________ 103
Figure 33: State Diagram for CPE100/CPE115 Run/Stop Operation ____________________________________ 103
Figure 34: Typical Multi-Tier LAN Application (Star/Bus Topology) ____________________________________ 106
Figure 35: Typical Multi-Tier LAN Application (Ring Topology) ________________________________________ 106
Figure 36: PME Expansion of PACSystems Target __________________________________________________ 110
Figure 37: Downloading Hardware Config to CPU __________________________________________________ 133
Figure 38: Selecting Embedded Ethernet for Configuration __________________________________________ 134
Figure 39: Set Temporary IP Address ____________________________________________________________ 137
Figure 40: Major Phases of a Typical CPU Sweep __________________________________________________ 141
Figure 41: Typical Sweeps in Normal Sweep Mode _________________________________________________ 144
Figure 42: Typical Sweeps in Constant Sweep Mode ________________________________________________ 145
Figure 43: Typical Sweeps in Constant Window Mode ______________________________________________ 146
Figure 44: CPU Sweep in Stop-I/O Disabled and Stop-I/O Enabled Modes _______________________________ 150
Figure 45: CPE330 Overlapping Local IP Subnet Example ____________________________________________ 183
Figure 46: Expected Response Path _____________________________________________________________ 184
Figure 47: Actual Response Path _______________________________________________________________ 184
Figure 48: COM1 Port CPE400 _________________________________________________________________ 192
Figure 49: RTU Message Transactions ___________________________________________________________ 227

Contents
GFK-2222AD April 2018 vii
Figure 50: RTU Read Output Table Example_______________________________________________________ 230
Figure 51: CRC Register Operation ______________________________________________________________ 232
Figure 52: RTU Read Output Table Message Format ________________________________________________ 236
Figure 53: RTU Read Input Table Message Format _________________________________________________ 237
Figure 54: RTU Read Registers Message Format ___________________________________________________ 238
Figure 55: RTU Read Analog Inputs Message Format _______________________________________________ 239
Figure 56: RTU Force Single Output Message Format _______________________________________________ 240
Figure 57: RTU Preset Single Register Message Format _____________________________________________ 241
Figure 58: RTU Read Exception Status Message Format _____________________________________________ 242
Figure 59: RTU Loopback/Maintenance Message Format ____________________________________________ 243
Figure 60: RTU Force Multiple Outputs Message Format ____________________________________________ 245
Figure 61: RTU Preset Multiple Registers Message Format ___________________________________________ 246
Figure 62: RTU Report Device Type Message Format _______________________________________________ 247
Figure 63: RTU Read Scratch Pad Memory Message Format _________________________________________ 251
Figure 64: RTU Error Response Format ___________________________________________________________ 253
Figure 65: Interrupt Execution Considerations _____________________________________________________ 298

GFK-2222AD April 2018 1
Chapter 1 Introduction
This manual contains general information about PACSystems CPU operation and product features.
Chapter 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 Chapter 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 RX7i, 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 Chapter 3. Configuration using the proprietary Proficy Machine 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 the embedded RX7i Ethernet interface as well as the rack-based RX7i and
RX3i Ethernet Interface modules, refer to PACSystems RX7i, RX3i and RSTi-EP TCP/IP Ethernet
Communications User Manual, GFK-2224.
CPU Operation is described in Chapter 4.
Ethernet Communications and Serial Communications are described in Chapter 5.
Serial I/O, SNP & RTU Protocols are described in Chapter 6.
Performance Data, including Instruction Timing, is provided in Appendix A.
User Memory Allocation is described in Appendix B.

Chapter 1. Introduction
2 PACSystems* RX7i, RX3i and RSTi-EP CPU Reference Manual GFK-2222AD
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
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).
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 2.1.9 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 2.2.1.8).
▪Added section 2.1.6, Embedded PROFINET Controller.
▪Update of Energy Pack Section 4.11.3 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

Chapter 1. Introduction
GFK-2222AD April 2018 3
Rev
Date
Description
V
Jun-
2015
▪Addition of RX3i CPE330 (new product) and related Ethernet considerations.
▪Update of Energy Pack Section 4.11.3 to include ACC402 and compatibility matrix.
▪Addition of HART®Pass Through feature (see page 10).
▪Addition of CPU Comparison Charts (Section 2.2 and Section 2.3).
▪Update of Communications Section (Chapter 5). Added
▪RSTi-EP CPE100/CPE115 : RS232, RS485 Signals
▪Serial Port Electrical Isolation.
▪Removed original Chapters 5-11 (chapters dealing with CPU programming) and Chapter 14
(Diagnostics). These are now in PACSystems RX7i and RX3i CPU Programmer’s Reference
Manual, GFK-2950 (Chapters 2-8 and Chapter 9 respectively).
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
RS-232 Signals
RS-485 Pins
Signals
TX
Y
TX+
RX
Z
TX-
GND
A
RX+
RTS
B
RX-
CTS

Chapter 1. Introduction
4 PACSystems* RX7i, RX3i and RSTi-EP CPU Reference Manual GFK-2222AD
Rev
Date
Description
S
July-
2013
▪Support for Modbus/TCP Server, SRTP channels and Modbus/TCP client channels on RX3i
CPE305/CPE310 embedded Ethernet interface –Chapter 2 & Chapter 5
▪Support for Access Control List –Chapter 3
▪Modbus TCP/IP mapping for CPE305/CPE310 –Chapter 30
▪Enhanced Security Passwords and OEM Protection –Chapter 4
▪Serial I/O protocol enhancements (Data Set Ready, Ring Indicator, and Data Carrier Detect)
–Chapter 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 Chapter 3 & Chapter 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
earlier
▪Added instructions for replacing the RX3i CPE305/CPE310 real-time clock battery: Chapter
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 Chapter 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

Chapter 1. Introduction
GFK-2222AD April 2018 5
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
Proficy* 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 Proficy Process Systems (PPS). PPS is a
complete, tightly integrated, seamless process control system using PACSystems, Proficy HMI/SCADA,
and Proficy Production 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.

Chapter 1. Introduction
6 PACSystems* RX7i, RX3i and RSTi-EP CPU Reference Manual GFK-2222AD
1.2.3 PACSystems CPU Models
Family
Catalog Number
Description
RSTi-EP Standalone CPUs
EPSCPE100
1 GHz AM335x CPU, 1 MB user
memory.
EPSCPE115
1 GHz AM335x CPU, 1.5 MB
user memory.
RX3i Standalone CPUs with
embedded Ethernet Interface
IC695CPE400
1.2 GHz AMD G-Series Quad
Core, 64 MB user memory with
Field Agent
RX3i CPUs with embedded
Ethernet Interface1
IC695CPE302
1.1GHz Atom CPU, 2 MB user
memory
IC695CPE305
1.1GHz Atom CPU, 5 MB user
memory
IC695CPE310
1.1GHz Atom CPU, 10 MB user
memory
IC695CPE330
1 GHz AMD G-Series Dual Core,
64 MB user memory
RX3i CPUs
IC695CPU310
300MHz Celeron CPU, 10 MB
user memory
IC695CPU315
1 GHz Celeron-M CPU, 20 MB
user memory
IC695CPU320
1 GHz Celeron-M CPU, 64 MB
user memory
IC695NIU001+
versions –AAAA & later
1.1 GHz Atom 510 NIU. For
information, refer to the
PACSystems RX3i Ethernet
Network Interface Unit User’s
Manual, GFK-2439
IC695NIU001
300MHz Celeron NIU. For
information, refer to the
PACSystems RX3i Ethernet
Network Interface Unit User’s
Manual, GFK-2439
RX3i Redundancy CPU
IC695CRU320
1 GHz Celeron-M CPU, 64 MB
user memory
1
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 RX7i & RX3i TCP/IP Ethernet Communications User Manual, GFK-2224K or
later.

Chapter 1. Introduction
GFK-2222AD April 2018 7
Family
Catalog Number
Description
RX7i CPUs with embedded
Ethernet Interface
IC698CPE010
300MHz, Celeron CPU, 10MB
user memory
IC698CPE020
700MHz, Pentium CPU, 10 MB
user memory
IC698CPE030
600MHz, Pentium-M CPU,
64MB user memory
IC698CPE040
1800MHz, Pentium-M CPU,
64MB user memory
RX7i Redundancy CPUs with
embedded Ethernet Interface
IC698CRE020
700MHz, Pentium CPU, 10 MB
user memory
IC698CRE030
600MHz, Pentium-M CPU,
64MB user memory
IC698CRE040
1800MHz, Pentium-M CPU,
64MB user memory

Chapter 1. Introduction
8 PACSystems* RX7i, RX3i and RSTi-EP CPU Reference Manual GFK-2222AD
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,
(IC695CRU320). The redundancy communication path is provided by IC695RMX128 Redundancy Memory
Xchange (RMX) modules set up as redundancy links. 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 CPE400 one of its embedded Ethernet ports is set up as a dedicated Field Agent port.
▪The CPE302, CPE3059, CPE310, and CPE330 and CPE400 CPUs provide an embedded Ethernet
interface which is used to connect to the programmer (Proficy Machine 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.
▪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. Refer to PACSystems RX7i & RX3i TCP/IP Ethernet Communications User Manual, GFK-
2224 version M or higher (Chapter 10).
▪Effective with RX3i firmware version 8.30
2
, 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
3
, the CPE330 supports Ethernet Global Data (EGD) Class 1.
This feature is available on all firmware versions of CPE400
4
and CPE3029.
2
Proficy Machine Edition Release 8.50 SIM 7 is required for EGD Class 1 on Embedded Ethernet interface of CPE305/CPE310.
3
Proficy 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.
4
Proficy Machine Edition Release 9.00 SIM 8 or later is required for native configuration support of the CPE400.

Chapter 1. Introduction
GFK-2222AD April 2018 9
▪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 RX7i & 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.
oSupported PROFINET Controllers include the embedded PROFINET Controller function
offered by IC695CPE400 and IC695CPE330, and the rack-mounted PROFINET Controller
module IC695PNC001.
oSupported PROFINET Scanners include the RX3i PROFINET Scanner module IC695PNS001
5
,
the RX3i IC695CEP001, and the VersaMax PROFINET Scanner modules IC200PNS001 &
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. Refer to PACSystems RX3i CEP
▪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.
5
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.