Emerson ControlWave User manual

www.EmersonProcess.com/Remote
RemoteAutomation Solution
s
Instruction Manual
Part Number D301385X012
Document: CI-ControlWave EXP
August 2015
ControlWave®
I/O Expansion Rack

IMPORTANT! READ INSTRUCTIONS BEFORE STARTING!
Be sure that these instructions are carefully read and understood before any operation is
attempted. Improper use of this device in some applications may result in damage or injury. The
user is urged to keep this book filed in a convenient location for future reference.
These instructions may not cover all details or variations in equipment or cover every possible
situation to be met in connection with installation, operation or maintenance. Should problems arise
that are not covered sufficiently in the text, the purchaser is advised to contact Emerson Process
Management, Remote Automation Solutions for further information.
EQUIPMENT APPLICATION WARNING
The customer should note that a failure of this instrument or system, for whatever reason, may
leave an operating process without protection. Depending upon the application, this could result in
possible damage to property or injury to persons. It is suggested that the purchaser review the
need for additional backup equipment or provide alternate means of protection such as alarm
devices, output limiting, fail-safe valves, relief valves, emergency shutoffs, emergency switches,
etc. If additional information is required, the purchaser is advised to contact Remote Automation
Solutions.
RETURNED EQUIPMENT WARNING
When returning any equipment to Remote Automation Solutions for repairs or evaluation,
please note the following: The party sending such materials is responsible to ensure that the
materials returned to Remote Automation Solutions are clean to safe levels, as such levels are
defined and/or determined by applicable federal, state and/or local law regulations or codes. Such
party agrees to indemnify Remote Automation Solutions and save Remote Automation Solutions
harmless from any liability or damage which Remote Automation Solutions may incur or suffer due
to such party's failure to so act.
ELECTRICAL GROUNDING
Metal enclosures and exposed metal parts of electrical instruments must be grounded in
accordance with OSHA rules and regulations pertaining to "Design Safety Standards for Electrical
Systems," 29 CFR, Part 1910, Subpart S, dated: April 16, 1981 (OSHA rulings are in agreement
with the National Electrical Code).
The grounding requirement is also applicable to mechanical or pneumatic instruments that
include electrically operated devices such as lights, switches, relays, alarms, or chart drives.
EQUIPMENT DAMAGE FROM ELECTROSTATIC DISCHARGE VOLTAGE
This product contains sensitive electronic components that can be damaged by exposure to an
electrostatic discharge (ESD) voltage. Depending on the magnitude and duration of the ESD, this
can result in erratic operation or complete failure of the equipment. Read supplemental document
S14006 for proper care and handling of ESD-sensitive components.

ControlWave I/O Expansion Rack Instruction Manual
Issued Aug-2015 Contents iii
Contents
Chapter 1 – Introduction 1-1
1.1Scope of the Manual.................................................................................................................1-2
1.2Physical Description..................................................................................................................1-2
1.3Housings ...................................................................................................................................1-3
1.4CPU Module..............................................................................................................................1-5
1.5Power Supply/Sequencer Module (PSSM)...............................................................................1-6
1.6I/O Modules...............................................................................................................................1-6
1.7Secure Gateway........................................................................................................................1-7
Chapter 2 – Installation 2-1
2.1Site Considerations...................................................................................................................2-1
2.1.1Class I, Div 2 Installation Considerations......................................................................2-2
2.2Installation Overview.................................................................................................................2-3
2.2.1Unpacking Components................................................................................................2-4
2.2.2Color Coding of Slot Connectors ..................................................................................2-5
2.2.3Mounting the Housing...................................................................................................2-7
2.2.4Grounding the Housing...............................................................................................2-11
2.3Power Supply/Sequencer Module (PSSM).............................................................................2-11
2.3.1General Information about the PSSM.........................................................................2-11
2.3.2PSSM Installation Overview........................................................................................2-13
2.3.3Setting Jumpers..........................................................................................................2-14
2.3.4General Wiring Guidelines..........................................................................................2-16
2.3.5Wiring a Bulk DC Power Supply to the PSSM............................................................2-17
2.3.6Hot-swapping a Power Supply....................................................................................2-20
2.3.7Wiring an External Alarm or Annunciator to the Watchdog Connector and Wiring the
Redundancy Control Input (OPTIONAL)................................................................................2-21
2.3.8Wiring Digital Inputs to indicate Power Supply Failure...............................................2-23
2.3.9PSSM Specifications...................................................................................................2-24
2.4CPU Module............................................................................................................................2-25
2.4.1Setting DIP Switches on the CPU Module..................................................................2-26
2.4.2Connections to RS-232 Serial Port(s).........................................................................2-29
2.4.3Connections to RS-485 Serial Port on the Secondary Communication Board (SCB)2-32
2.4.4Connections to Ethernet Port(s) on the CPU Module.................................................2-34
2.5Bezels......................................................................................................................................2-35
Chapter 3 – I/O Modules 3-1
3.1Module Placement ....................................................................................................................3-3
3.2Status LEDs ..............................................................................................................................3-4
3.3Wiring........................................................................................................................................3-4
3.3.1Local Termination..........................................................................................................3-5
3.3.2Remote Termination......................................................................................................3-6
3.3.3Shielding and Grounding...............................................................................................3-6
3.4Digital Input (DI) Modules..........................................................................................................3-8
3.5Digital Output (DO) Modules...................................................................................................3-13
3.6Analog Input (AI) Modules.......................................................................................................3-20
3.7Analog Output (AO) Modules..................................................................................................3-25
3.8Universal Digital Input (UDI) Modules.....................................................................................3-30
3.9Isolated Resistance Temperature Device (RTD) Input Module..............................................3-36
3.10Isolated Thermocouple Module...............................................................................................3-40

ControlWave I/O Expansion Rack Instruction Manual
iv Contents Issued Aug-2015
Chapter 4 – Operation 4-1
4.1Powering Up/Powering Down the ControlWave I/O Expansion Rack ......................................4-1
4.2Communicating with the ControlWave I/O Expansion Rack.....................................................4-1
4.2.1Default Comm Port Settings .........................................................................................4-1
4.2.2Changing Port Settings.................................................................................................4-2
Chapter 5 – Service and Troubleshooting 5-1
5.1Upgrading Firmware..................................................................................................................5-2
5.2Removing or Replacing Components.......................................................................................5-5
5.2.1Accessing Modules for Testing.....................................................................................5-5
5.2.2Removing/Replacing the Bezel.....................................................................................5-5
5.2.3Removing/Replacing the CPU Module .........................................................................5-6
5.2.4Removing/Replacing the PSSM....................................................................................5-6
5.2.5Removing/Replacing an I/O Module (Hot Swapping)...................................................5-7
5.2.6Removing/Replacing the Backup Battery...................................................................5-12
5.3General Troubleshooting Procedures.....................................................................................5-13
5.3.1Common Communication Configuration Problems.....................................................5-13
5.3.2Checking LEDs ...........................................................................................................5-14
5.3.3Checking Wiring/Signals.............................................................................................5-22
5.3.4Port 80 Display Codes ................................................................................................5-22
5.3.5Reset Switch...............................................................................................................5-26
5.4WINDIAG Diagnostic Utility.....................................................................................................5-26
5.4.1Available Diagnostics..................................................................................................5-28
5.5Core Updump..........................................................................................................................5-32
Appendix A – Special Instructions for Class I, Division 2 Hazardous Locations. A-1
Appendix B – Open MODBUS Interface B-1
Appendix Z – Sources for Obtaining Material Safety Data Sheets Z-1
Index IND-1

ControlWave I/O Expansion Rack Instruction Manual
Revised Aug-2015 Introduction 1-1
Chapter 1 – Introduction
The ControlWave I/O Expansion Rack provides additional I/O in a
separately mounted rack for an existing ControlWave process
automation controller.
This manual focuses on the hardware aspects of the ControlWaveI/O
Expansion Rack. For information about the software used with the
ControlWave I/O Expansion Rack, refer to the ControlWave I/O
Expansion Rack Quick Setup Guide (D5122), the ControlWave
Designer Programmer’s Handbook (D5125), and the online help in
ControlWave Designer.
This chapter details the structure of this manual and provides an
overview of the I/O rack and its components.
In This Chapter
1.1Scope of the Manual........................................................................1-2
1.2Physical Description ........................................................................1-2
1.3Housings..........................................................................................1-3
1.4CPU Module ....................................................................................1-5
1.5Power Supply/Sequencer Module (PSSM) .....................................1-6
1.6I/O Modules......................................................................................1-6
1.7Secure Gateway..............................................................................1-7
The ControlWave I/O expansion rack was designed with an emphasis
on providing high performance with low power consumption,
scalability, and modularity.
You can configure the ControlWave I/O expansion rack as a slave to a
ControlWave Process Automation Controller (CWPAC), ControlWave
Redundant Controller (CWRED), or a ControlWave Redundant I/O
Switch Unit (CWRED I/O). Communication to the rack can be via an
Ethernet connection, serial MODBUS, or Open MODBUS.
Features ControlWave I/O expansion racks have the following key features:
Low power consumption
Small size (enabling panel mount or 19 inch rack-mount
installations)
Two or three RS-232 ports
One or three 10/100 MB Ethernet ports
Options for additional communication ports
Housings to support four or eight I/O modules
Variety of I/O modules and support for hot swapping of I/O modules
Support for redundant operation with another ControlWave I/O
expansion rack
LED status indicators on the CPU, PSSM, and certain I/O modules

ControlWave I/O Expansion Rack Instruction Manual
1-2 Introduction Revised Aug-2015
Port 80 display to present status codes
Battery backup for the real-time clock and the system’s static RAM
(SRAM)
Class I, Division 2 Hazardous Location approvals (Requires an
appropriate enclosure that meets NEMA Type 3X or 4X
specifications.)
1.1 Scope of the Manual
This manual contains the following chapters:
Chapter 1
Introduction Provides an overview of the hardware and
general specifications for the ControlWave.
Chapter 2
Installation Provides information on the housings, the
Power Supply/Sequencer module (PSSM), and
the CPU module.
Chapter 3
I/O Modules Provides general information and wiring
diagrams for the I/O modules.
Chapter 4
Operation Provides information on day-to-day operation of
the I/O rack.
Chapter 5 Service and
Troubleshooting Provides information on service and
troubleshooting procedures.
1.2 Physical Description
Each ControlWave has a printed circuit board (PCB) backplane
mounted in a stainless steel housing, a Power Supply/Sequencer Module
(PSSM), a CPU module which may include an optional Secondary
Communication Board (SCB) and—depending on the backplane and
housing size—up to eight I/O modules.
Figure 1-1. ControlWave I/O Expansion Rack with 8 I/O Modules
Refer to the following sections in this chapter or to other chapters in this
manual for further information:
Housings (chassis) with backplanes (see Section 1.3 and Chapter 2)

ControlWave I/O Expansion Rack Instruction Manual
Revised Aug-2015 Introduction 1-3
Power Supply/Sequencer module (PSSM) (see Section 1.5 and
Chapter 2)
CPU module (see Section 1.4 and Chapter 2)
One or more I/O modules (see Section 1.6 and Chapter 3)
1.3 Housings
ControlWave housings are stainless steel designed for panel/wall-
mounting or for some versions, for mounting in a 19-inch equipment
rack. They contain the printed circuit board (PCB) backplane into which
you connect the PSSM, the CPU module, and any I/O modules.
The following housings are available:
6-slot backplane supports on PSSM, one CPU, and up to four I/O
modules.
10-slot housing supports one PSSM, one CPU, and up to eight I/O
modules. The 10-slot housing is suitable for mounting in a 19-inch
equipment rack.
Hot swap detection circuitry within the PSSM allows for the safe
insertion and removal of I/O modules while power is on.

ControlWave I/O Expansion Rack Instruction Manual
1-4 Introduction Revised Aug-2015
Figure 1-2. ControlWave I/O Expansion Rack Housing Options

ControlWave I/O Expansion Rack Instruction Manual
Revised Aug-2015 Introduction 1-5
1.4 CPU Module
Note: The ControlWave I/O Expansion Rack CPU does not accept a
downloadable ControlWave project (software application), it
only holds I/O modules. A separate ControlWave Process
Automation Controller runs the ControlWave project which must
reference the I/O points in the ControlWave I/O Expansion Rack.
The CPU (central processing unit) module houses the CPU board, and if
present the secondary communications board (SCB). The CPU module
provides I/O monitor/control, memory, and communication functions.
The CPU board includes:
Intel 386EX microprocessor running at 25 MHz
2 RS-232 communication ports
1 10/100baseT Ethernet port
2 MB of battery backed Static RAM (SRAM)
512 KB boot/downloader FLASH
32 MB simultaneous read/write FLASH memory
configuration DIP switches (described in Chapter 2)
Port 80 display to show status codes
You can order the CPU module with the optional secondary
communication board (SCB) for additional communication ports. See
CPU Module Configurations.
CPU Module
Configurations The CPU module has two basic configurations, all of which have an
on-board backup battery and different combinations of
communications ports.
Table 1-1. CPU Module Configurations
Number of RS-232
Ports Number of RS-485 Ports Number of Ethernet
Ports
Notes
2 (COM1 & COM2) 0 1 (ETH1) No SCB.
3 (COM1, COM2, COM4) 1 (COM3) 3 (ETH1,
ETH2,
ETH3)
For this port count, 1
RS-232 (COM4), 1 RS-
485 (COM3), and 2
Ethernet ports (ETH2,
ETH3) reside on the
SCB.
CPU Backup
Battery The CPU module includes a 3.6V, 950 mA-hr lithium ½ AA battery.
This battery provides backup power for the real-time clock and the
system’s Static RAM (SRAM).
CPU Memory There are several different types of memory used on the CPU module:

ControlWave I/O Expansion Rack Instruction Manual
1-6 Introduction Revised Aug-2015
Boot/Downloader FLASH
Boot/download code is contained in a single 512 Kbyte FLASH chip.
Boot FLASH also holds the value of soft switches, audit/archive file
configurations, and user account and port information.
FLASH Memory
The CPU module contains 32 MB of FLASH memory. The FLASH
memory holds the system firmware. The FLASH does not support
hardware write protection.
System Memory (SRAM)
The CPU module has 2 MB of static random access memory (SRAM).
During power loss periods, SRAM enters data retention mode (powered
by the CPU backup battery). Critical system information that must be
retained during power outages or when the system has been disabled for
maintenance is stored here. This includes the last states of all I/O points.
1.5 Power Supply/Sequencer Module (PSSM)
The Power Supply/Sequencer module (PSSM) takes power from an
external bulk DC power supply and then provides power through the
ControlWave housing/backplane to all installed modules.
The PSSM operates from +22.2 to +30V (dc) and ships from the factory
with a nominal input supply configuration of 24V.
The PSSM includes:
ON/OFF system power switch(es) for each power supply board
Pluggable terminal block to connect the external power supply
Watchdog output connector to signal a watchdog failure to an
external device
Status LEDs
Chapter 2 includes instructions for installing and configuring the PSSM.
1.6 I/O Modules
The ControlWave I/O expansion rack supports analog input, analog
output, digital input, digital output, universal digital input, isolated
RTD, and isolated low level analog (thermocouple and mv) input
modules for either local or remote field device wiring termination.
Refer to Chapter 3 for information on specific I/O modules. Figure 1-3
shows a typical I/O module housing.
Terminations are pluggable and accept a maximum wire size of #14
AWG. Each I/O module connects to the backplane using a 110-pin male
connector and to its associated terminal block assembly using a 44 pin
header.

ControlWave I/O Expansion Rack Instruction Manual
Revised Aug-2015 Introduction 1-7
Figure 1-3. I/O Module (with door open)
1.7 Secure Gateway
For enhanced data security when using an IP/Ethernet connection,
Emerson Remote Automation Solutions recommends adding an
industrial router with VPN and firewall security. Recommended
solutions include the MOXA EDR‐810, the Hirschman Eagle One, or
the Phoenix mGuard rs4000 (or equivalents). An example of how to
install one of these devices to the RTU can be found in the Emerson
Remote Automation Solutions MOXA® Industrial Secure Router
Installation Guide (part number D301766X012). For further
information, contact your Local Business Partner or the individual
vendor’s website.

This page is intentionally left blank

ControlWave I/O Expansion Rack Instruction Manual
Revised Aug-2015 Installation 2-1
Chapter 2 – Installation
This chapter discusses the physical configuration of the ControlWave
I/O Expansion Rack, considerations for installation, wiring instructions
for the PSSM module, and instructions for setting switches and jumpers
on the CPU module. For instructions on I/O installation, see Chapter 3.
In This Chapter
2.1Site Considerations..........................................................................2-1
2.1.1Class I, Div 2 Installation Considerations.............................2-2
2.2Installation Overview........................................................................2-3
2.2.1Unpacking Components.......................................................2-4
2.2.2Color Coding of Slot Connectors..........................................2-5
2.2.3Mounting the Housing ..........................................................2-7
2.2.4Grounding the Housing ......................................................2-11
2.3Power Supply/Sequencer Module (PSSM) ...................................2-11
2.3.1General Information about the PSSM ................................2-11
2.3.2PSSM Installation Overview ...............................................2-13
2.3.3Setting Jumpers .................................................................2-14
2.3.4General Wiring Guidelines .................................................2-16
2.3.5Wiring a Bulk DC Power Supply to the PSSM ...................2-17
2.3.6Hot-swapping a Power Supply ...........................................2-20
2.3.7Wiring an External Alarm or Annunciator to the Watchdog
Connector and Wiring the Redundancy Control Input
(OPTIONAL) .....................................................................2-21
2.3.8Wiring Digital Inputs to indicate Power Supply Failure ......2-23
2.3.9PSSM Specifications ..........................................................2-24
2.4CPU Module ..................................................................................2-25
2.4.1Setting DIP Switches on the CPU Module .........................2-26
2.4.2Connections to RS-232 Serial Port(s) ................................2-29
2.4.3Connections to RS-485 Serial Port on the Secondary
Communication Board (SCB) ...........................................2-32
2.4.4Connections to Ethernet Port(s) on the CPU Module ........2-34
2.5Bezels ............................................................................................2-35
2.1 Site Considerations
When choosing an installation site, check all clearances. Ensure that the
ControlWave I/O expansion rack is accessible for wiring and service.
Caution To ensure safe use of this product, please review and follow the
instructions in the following supplemental documentation:
Supplement Guide - ControlWave Site Considerations for
Equipment Installation, Grounding, and Wiring (S1400CW)
ESDS Manual – Care and Handling of PC Boards and ESD
Sensitive Components (S14006)

ControlWave I/O Expansion Rack Instruction Manual
2-2 Installation Revised Aug-2015
Specifications
for Temperature,
Humidity and
Vibration
See document CWPAC available on our website for detailed
technical specifications for temperature, humidity, and vibration for
the ControlWave I/O Expansion Rack. This document is available
on our website at: http://www.emersonprocess.com/remote.
Ensure that the ambient temperature and humidity at the installation
site remains within these specifications. Operation beyond the
specified ranges could cause output errors and erratic performance.
Prolonged operation under extreme conditions could also result in
failure of the unit.
Check the mounted enclosure, panel, or equipment rack for
mechanical vibrations. Make sure that the ControlWave is not
exposed to a level of vibration that exceeds that provided in the
technical specifications..
2.1.1 Class I, Div 2 Installation Considerations
Caution Placement of the ControlWave in Class 1, Division 2 (Group A, B, C, and
D) hazardous locations requires that you select an appropriate
enclosure that meets NEMA Type 3X or 4X specifications.
Underwriters Laboratories (UL) lists the ControlWave I/O Expansion
Rack as non-incendive and suitable only for use in Class I, Division 2,
Group A, B, C, and D hazardous locations and non-hazardous locations.
Read this chapter and Appendix A carefully before you install a
ControlWave in a hazardous location.
Perform all power and I/O wiring in accordance with Class I, Division 2
wiring methods as defined in Article 501-4 (b) of the National Electrical
Code, NFPA 70 (for installations within the United States) or as
specified in Section 18-152 of the Canadian Electrical Code (for
installation in Canada).
WARNING EXPLOSION HAZARD
Substitution of components may impair suitability for use in Class I,
Division 2 environments.
When the ControlWave I/O Expansion Rack is situated in a hazardous
location, turn off power before servicing or replacing the unit and
before installing or removing I/O wiring.
Do not connect or disconnect equipment unless the power is switched
off or the area is known to be non-hazardous.

ControlWave I/O Expansion Rack Instruction Manual
Revised Aug-2015 Installation 2-3
2.2 Installation Overview
Installing a ControlWave I/O Expansion Rack involves several general
steps, and includes not just the I/O expansion rack(s), but configuration
of its host ControlWave Process Automation Controller to reference the
I/O in the I/O expansion rack.
1. Unpacking, assembling, and configuring the hardware.
a) Mount the housing (Section 2.2.3).
b) Install the PSSM in chassis slot 1 (Section 2.3.1).
c) Set CPU switches then install the CPU in chassis slot 2 (Section
2.4.1).
d) Make communication port connections, including a connection
between your PC and the I/O rack (Sections 2.4.2, 2.4.3 and
2.4.4).
e) Install I/O modules in chassis slots 3 through 6 (or 3 through 10)
and wire the I/O modules to I/O devices (Chapter 3).
f) Install a ground wire between the chassis ground lug and a
known good earth ground (Section 2.2.4).
g) If required, install watchdog switch wiring and redundancy
control wiring (Section 2.3.7).
h) Connect bulk DC power to the PSSM module. (Section 2.3.5)
i) Install the bezel to cover the PSSM and CPU.(Section 2.5)
j) Plug an Ethernet cable from you network to one of the Ethernet
ports.
k) Open the bezel door and turn on the power on the PSSM
module.
l) Check the display; when the power on sequence finishes, it
should be blank.
2. Installing PC-based software (ControlWave Designer and
OpenBSI).
3. Establishing communication by connecting the PC to one of the I/O
rack’s communication ports.
4. Setting flash memory parameters in the I/O expansion rack(s).
5. Creating an application-specific control strategy (ControlWave
project) for the ControlWave host that references the I/O in the I/O
expansion rack.
6. Downloading the application-specific ControlWave project into the
ControlWave host controller.

ControlWave I/O Expansion Rack Instruction Manual
2-4 Installation Revised Aug-2015
Note: Steps 2 through 6 require that you install and use ControlWave
Designer and OpenBSI software on your PC. This manual
focuses on hardware installation and preparation. Software
installation and configuration is beyond the scope of this
manual. Refer to the ControlWave I/O Expansion Rack Quick
Setup Guide (D5122) for material related to software
configuration.
Figure 2-1. ControlWave Process Automation Controller (PAC) with Two I/O Expansion Racks
2.2.1 Unpacking Components
Packaging Depending upon how you order it, the ControlWave I/O Expansion
Rack may arrive pre-assembled, with all modules installed in the
housing, or as individual components in a number of separate boxes. In
the latter case, you must identify, unpack, and assemble the
components. Unless otherwise noted, you can place I/O modules in any
slot in a base or expansion housing.
Note: Do not install modules in the housing until you have mounted
and grounded the housing at the designated installation site.
Delivered boxes may include:
Housing assemblies
Power Supply/Sequencer module (PSSM)
Note: The PSSM must reside in slot #1 in the base housing.
CPU module
Note: The CPU module must reside in slot #2 in the base housing.
I/O Modules
ControlWave Process
A
utomation Controller
Ethernet cabling
Expansion I/O Rack Expansion I/O Rack
ControlWave ControlWave
(HOST)

ControlWave I/O Expansion Rack Instruction Manual
Revised Aug-2015 Installation 2-5
Notes:
There are many different types of I/O modules available. Chapter
3contains detailed instructions on each I/O module.
Universal Digital Input (UDI) modules can only reside in the first
four I/O slots. One or more bezel assemblies; each bezel covers
two I/O modules.
2.2.2 Color Coding of Slot Connectors
A color tab on each backplane connector matches the color on the
module which you can place in that slot.
PSSM goes in the first slot (Yellow tab)
CPU goes in the second slot (Blue tab)
I/O modules go in any other slot (Green tab)
Figure 2-2. Color Coded Board Connectors

ControlWave I/O Expansion Rack Instruction Manual
2-6 Installation Revised Aug-2015
Figure 2-3. PSSM Installed in ControlWaveEXP Slot #1
Figure 2-4. PSSM & CPU (with SCB) Installed in Slot #1 & #2 (Respectively)

ControlWave I/O Expansion Rack Instruction Manual
Revised Aug-2015 Installation 2-7
2.2.3 Mounting the Housing
ControlWave I/O expansion rack modules reside in a stainless steel
housing. No enclosure is provided.
You can install a ControlWave equipped with a 4-I/O module housing
on a wall or panel. See Figure 2-6 for mounting hole patterns for a 4-
I/O unit.
You can install a ControlWave I/O expansion rack equipped with an 8-
I/O module housing in a 19-inch equipment rack, a panel or a wall.
These units ship from the factory with the end plates configured for 19-
inch rack mounting. Remove the end plates, rotate them 180° and then
reinstall them to accommodate panel or wall mounting. See Figure 2-5
for hole patterns and dimensions.
When you install any of these units on a panel or wall, position it
according to the following restrictions:
Position the unit so that you can see the front of the assembly and so
it is accessible for service such as installing a module or replacing a
battery.
Do not install ControlWave modules until you mount the chassis
and ground it properly.

ControlWave I/O Expansion Rack Instruction Manual
2-8 Installation Revised Aug-2015
Figure 2-5. 8-I/O Module ControlWave I/O Rack - Mounting Diagram
(dimensions in inches)