The Other 5 Wires Of
EtherNet/IP In-Cabinet Solution
Yutao (Tony) Wang
Sr. Project Engineering EtherNet/IP In-cabinet Architecture Lead
Rockwell Automation, Inc.
Chirag Malkan
Senior Manager, Advanced Engineering
Rockwell Automation, Inc.
Kelly Passineau
Product Manager
Rockwell Automation, Inc.

Presented at the
ODVA 2023 Industry Conference& 20th Annual Meeting
October 18th, 2023
Barcelona, Spain

Abstract
The rapid evolution of Single-Pair Ethernet (SPE) technology is revolutionizing the industrial panel building
sector by introducing groundbreaking advancements in control wire reduction and, in certain cases, eveneliminating the need for control wiring altogether. This paper highlights the transformative impact of the
SPE/T1S implementation, as defined by ODVA's released specification in April 2021, which introduces aflat ribbon solution consisting of seven conductors. Five of the conductors are specifically designed to
streamline panel wirings, significantly simplifying the complex network of connections by providing switch
power for in-panel devices, thereby reducing the dependency on traditional control wiring methods. The
remaining two conductors are responsible for enabling seamless SPE/T1S connectivity, ensuring optimalcommunication between devices. By leveraging SPE technology and the SPE/T1S implementation,industrial panel builders can benefit from improved efficiency, reduced complexity, and enhanced
performance in their control systems. This paper sheds light on the significant potential of SPE technology
to reshape the landscape of industrial panel building, empowering businesses to optimize their operations
and embrace the future of streamlined and efficient control wire solutions.
Keywords
EtherNet/IP, Constrained-Node Networks, APL, In-cabinet, Ethernet, IEEE 802.3, IEEE 802.3cg, IEEE
802.3da, Single-pair, SPE, Industrial Automation, Process Automation, Fieldbus, ODVA, Reference
Geography, Network Power, Select Line, Select Line Protocol, IDC - Insulation Displacement Connector,
Device Commissioning, Network Commissioning, 5 wires.

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Definition of terms
Industrial Automation

Discrete, Process, and Hybrid (Batch) Automation

IP
IEEE Std 802.3cg-2019

Internet Protocol
Ethernet standard, including 10BASE-T1L and 10BASE-T1S PHYs

PHY
MAC
SPE
PoDL
Fieldbus
Industrial Ethernet
Edge
Gateway
SwitchIT
OT
MES
Purdue Model
IIoT
Point-to-point
Multi-drop

PHYsical layer connecting a link layer to a physical medium
Medium Access Control layer (IEEE)
Single Pair Ethernet
Power over Data Line (IEEE single pair power)
Industrial network protocol for real-time control
Fieldbus protocol operable over Ethernet
Leaf nodes attached to a network core, i.e., sensor and actuators
Network protocol converter spanning ISO model layers
IEEE 802.3 bridge, forwarding based on MAC addresses
Information Technology
Operational Technology
Manufacturing Execution Systems
Layered functional automation model
Industrial Internet of Things
Communication link with a single device at each end
Communication link with multiple devices sharing the same link

Program Logic Controller(PLC)A

PHY-level Collision Avoidance, multidrop determinism protocol

Full duplex
Half-duplex
MCU
ASIC
Network Commissioning
Device Commissioning

Simultaneous communication in both direction on a link
Communication in a single direction at a time on a link
Micro Controller Unit
Application-Specific Integrated Circuit
Process of commissioning all devices on a network
For Constrained Devices on EtherNet/IP network is thesetting the IP Address to a minimum.
Network Power
Switched Power
Supplemental Power Tap, also referenced as Power Tap
Media Access Control
Program Logix Controller, Programmable Logic Controller
Input/Output modules, provides discrete logical inputs andlogical outputs for machine logic control
SELV is an electric system in which the voltage cannot exceed thevalue of extra-low voltage:– under normal conditions and– under single fault conditions, including earth faults in other electric
circuits. SELV is the abbreviation for safety extra-low voltage.
PELV is an electric system in which the voltage cannot exceed thevalue of extra-low voltage:– under normal conditions and– under single fault conditions, except earth faults in other electric
circuits. PELV is the abbreviation for protective extra-low voltage.

NP
SP
SP Tap
MAC
PLC
I/O
SELV

PELV

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Trademarks
DeviceNet™, CompoNet™, and EtherNet/IP™ are trademarks of ODVA, INC.
HART®, HART-IP™, and FOUNDATION™ are trademarks of the FieldComm GroupPROFIBUS, PROFINET, and IO-Link are trademarks of PROFIBUS Nutzerorganisation e.V. (PNO)CANOpen® is a trademark of CAN in Automation
Modbus® is a trademark of SCHNEIDER ELECTRIC USA, INC.
CC-Link and CC-Link IE are trademarks of MITSUBISHI ELECTRIC CORPORATION
AS-Interface is a trademark of Verein zur Forderung busfahiger Interfaces fur Binare Aktuatoren und
Sensoren e. V.
INTERBUS is a trademark of Phoenix Contact GmbH & Co.
Purpose of Paper
This paper explains the key technology that enables the use of Single Pair Ethernet (SPE) inside industrial
cabinets. We go into detail about the SPE setup inside the cabinet and discuss how it solves familiar
challenges found in industrial cabinets.
(The “NOW”) Conventional Control Panel Control Wiring Methods
For over a century, the methodology of in-cabinet wiring within industrial automation has remained constant.
Such longstanding procedures are now on the cusp of transformation. By delving into the intricacies ofcontrol system design, installation, and testing/troubleshooting, we can shed light on the inherent
challenges posed by traditional discrete wiring techniques. For the purposes of this discussion, it's important
to note that terms like "industrial panels," "industrial control panels," "in-cabinets," and "in-panels" are allsynonymous and will be used interchangeably throughout this paper.
In-Cabinet I/O Control Wiring: Design, Installation, and Challenges in Industrial Automation
The control wiring for in-cabinet I/O devices, such as push buttons and motor starters, is an essential area
in industrial automation. The interface between physical components and their logical control is critical forthe smooth operation of any system and is traditionally hardwired in various point-to-point configurations.
These types of in-cabinet devices have long been used in electrical control systems providing machine
control as they serve as inputs and outputs for traditional Program Logic Controller (PLC) control.

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Figure 1 Conventional Panel

During the design phase, the Bill of Materials (BOMs) is the primary reference, detailing components, their
specifications, and required quantities. Once the BOM is established, the wire up phase follows, components areconnected according to the design. It's worth noting that the complexity inherent in this process increases the
chances of errors, making meticulous attention to detail a necessity.
The type of control logic interfacing is also determined within this phase. There are two main approaches:

PLC system with I/O modules
I/O modules interpret device inputs andproduce the necessary outputs.

Hardwired logic method
Referred to as ‘wire-logic’ and some applications do not
require PLC I/O wiring.

PLC inputs and outputs are hard-wired
directly to the device.

The PLC inputs and outputs are hard-wired directly to thedevice.
Typical application would utilize a Hand/Off/Auto selector
switch, whereas the Hand position provides local control
and Auto position provides PLC control.

Here is a typical example of PLC I/O (hard wiring) where the PLC does all the “Soft” logic:

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Figure 2 Example of PLC Logical Input Wiring

Figure 3 Example of PLC Logical Output wiring

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Figure 4 Wiring Conventional Panel

Here are two examples of “wire logic” without a PLC. Whereas components are hard-wired into logic.

Figure 5 Wire logic without Program Logic Controller (PLC)

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Figure 6 Wiring without Program Logic Controller (PLC)

While the PLC approach does use more I/O points, it does provide more adaptability and can be morestraightforward to modify or reconfigure.

Wiring Method
Program Logic Controller(PLC) I/O

Wire Logic

Pro Easy to wire
 Easy to control & configure
 Easy to troubleshoot Easy to accommodate systemchanges/additionsCon Consumes more I/O points

 Consumes less I/O points

 More difficult to wire
 Increased risk for wiring
mistakes Difficult to troubleshoot Difficult to add/change systemdesignTable 1 Wiring Methods Pros/Cons seen by Industrial Automation Customers

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Control Wiring in Industrial Automation: Installation, Estimation, and Troubleshooting
In the installation phase the physical components are properly mounted and wired and depending on thecontrol system's complexity hundreds of individual control wires will need to be installed.

Figure 7 Conventional Panel

In estimating the cost of installation, 6 minutes per wire (3 minutes per termination) is an appropriate
guide. Six minutes to measure, cut, strip the ends, label, and terminate. A single motor starter (nonreversing) wired with a Hand/Off/Auto (HOA) selector and 3-wire start/stop requires 13 physical wire
terminations.
Troubleshooting is an inevitable part of any industrial automation project. This process often starts bytracing the control wiring, especially when guided by error messages from the Program Logic Controller(PLC). Essential tools in this phase include continuity checks, voltage measurements, and isolating partsof the system to identify the problem source. Common issues often encountered include loosened
connections, failed contacts, and problems caused by environmental wear and tear.
In summary, control-wiring for I/O devices is a complex but vital area in industrial automation. Proper design,
installation, and troubleshooting practices are key to ensuring system reliability.
Trends and Advancements in Control Wiring for In-cabinet I/O Devices
The industrial automation sector is undergoing significant transformations, necessitating a re-evaluation of
traditional methodologies associated with control wiring for in-cabinet I/O devices.
In the Commissioning Workflow, precision is paramount. The establishment of a system’s foundation
requires meticulous configuration of components, ensuring alignment with both design specifications andoperational parameters. This step serves as a precursor to the broader system implementation and ispivotal in avoiding downstream complications.
The Design Workflow is where we observe a noticeable shift towards efficiency. Modern practices
advocate for a systematic allocation of wiring numbers and I/O points. Coupled with comprehensive
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physical configuration drawings and schematics, this method champions clarity and reduces the room forerror. For visual clarity, a comparative illustration drawing a clear demarcation between traditional andcurrent wiring approaches.

Figure 8 Traditional hardwire control

Figure 9 EtherNet/IP in-cabinet solution

As we delve into the Characteristics of Modern Control Wiring, the significance of innovations like
EtherNet/IP in-cabinet solution becomes evident. When integrated with terminal nodes in devices such aspush buttons and motor starters, it offers an alternative to the ubiquitous PLC controllers. This strategy
eliminates the dependency on the “PLC Soft Logic" wiring. The tangible benefit? A marked reduction in
traditional I/O wiring, promoting system streamlining and reliability enhancement. To elucidate thistransition, before-and-after visuals shown in Figures 8-10 can serve as compelling evidence of the efficiency
gains and system optimization.

Figure 10 EtherNet/IP in-cabinet solution cost savings

Lastly, an evaluation of the PLC approach is necessary. While this methodology does intensify the
consumption of I/O points, its strength resides in configurational simplicity. In an industry characterized by
rapid technological shifts, the ability to swiftly adapt and modify systems becomes invaluable.
To encapsulate, as industrial automation strides forward, the embrace of these progressive advancements
methodologies in control wiring is not just advantageous—it's imperative. Ensuring adaptability andefficiency in in-cabinet devices will undeniably influence the future trajectory of the industry.

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Future view: Control Panel Control Wiring Method Benefits
As we look towards the future of industrial automation, it's imperative to consider the evolving needs andchallenges faced by panel builders and machine manufacturers. Their role is central to the implementationand success of any automated system, and as such, the tools, and methodologies they employ can impact
the efficiency and reliability of the entire operation.
A paramount concern is Efficiency and Accuracy, introduced in the previous section. With the rapid
advancements in control wiring techniques, there is an opportunity to drastically improve the speed andprecision of panel building. Streamlined wiring techniques and intuitive device interfaces can significantly
reduce the margin for error. The result? Faster panel construction without compromising quality. By
introducing systems that are straightforward to assemble and connect, panel builders can expedite theirprocesses and ensure the reliability of their work.
The industry is also grappling with Labor Challenges. There is a palpable shortage of workers, making it
increasingly challenging to onboard individuals for panel building tasks. This scarcity is further compounded
when seeking individuals with specialized skills, such as the ability to read ladder logic or interpret electricalline diagrams.
Moreover, the deficit is not limited to numbers alone. Expertise Shortages are a pressing concern. Finding
personnel skilled enough to not only assemble but also trace and troubleshoot potential issues is becoming
a rare commodity. As systems grow more complex, the value of these skilled professionals cannot be
understated.
Looking even further ahead, the Future Workforce presents unique challenges and opportunities. As
newer generations enter the field, their interaction with these systems will differ significantly from theirpredecessors. For them, many of these system components will be networked and simply understood as“just another node” on the network. This shift in perception will necessitate changes in training
methodologies, ensuring that foundational knowledge is transferred amidst the rapid technologicalevolution.
These real benefits of “modernizing” the work on industrial in-cabinet builders and machine manufacturers
are foundational to the value and enable other Single Pair Ethernet (SPE) benefits such as cyber security,
data mining, etc. to solve industrial automation trends as carbon footprint reduction and cybersecurity
resiliency.
In summary, the future of panel building in industrial automation is poised for transformative changes. By
proactively addressing challenges and leveraging advancements the potential to not only enhance
efficiency and accuracy but also to prepare for the inevitable shifts in the workforce landscape.

EtherNet/IP In-Cabinet Solution
The In-Cabinet Solution is intended to replace hardwiring between devices with composite network cabling.
This brings potential benefits in rapid assembly, programmable functionality, and enabling intelligence toprovide greater information for maintenance and process optimization. The system achieves a reduction in
device complexity by utilizing a multi-drop bus to reduce the device interface complexity and to reduce theaverage number of interfaces per device.

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Figure 11 Power System Architecture

The First Power Tap, shown in Figure 11 supplies both NP (Network Power) and SP (Switched Power) toa multidrop bus system. Network Power supplies communication electronics with a 4 amps capacity
whereas Switched Power is used for switching larger loads such as contactor coils with 4 amps capacitywith boosted ampacity to 8 amps up to 100 millisecond duration. This is to account for the initial inrush
current when the loads are switched on.
NP is provided to all nodes on the bus. The First Power Tap supplies SP to the first segment, to which it isdirectly attached. SP can be segmented for groups of nodes on the bus. A Supplemental Power Tap passes
NP from an upstream segment to the next downstream segment. The Supplemental Power Tap does notpass SP from the upstream segment (SP Power 1); it supplies a separate SP to the downstream segment(SP Power 2).
The First power tap and supplemental power taps can be powered by the same 24V supply source. The
total network length is 25 meters with a maximum node count of 40. The 10BASE-T1S transceiver withineach node is compliant with the IEEE 802.3cg-2019 standard.
10BASE-T1S physical layer specification was published as IEEE 802.3cg-2019 amendment.
The following are key technical characteristics of the IEEE 802.3cg-2019 10BASE-T1S:
 Half-duplex multidrop (8 nodes, 25m)
 Half-duplex or full-duplex point-to-point 10 Mb/s, 1Vpp
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Figure 11 IEEE PHY Options and Settings

The ODVA EtherNet/IP In-cabinet bus media and physical layer specification increased the node countfrom 8 to 40 and still meets the mixing segment specifications from IEEE 147.8 section.
EtherNet/IP In-cabinet Flat Cable
The 7-conductor flat cable interconnects communication, power, and discrete signals between devices in abus.
NP and SP conductors are 20 AWG (19 strands). The SPE+, SPE-, and Select line conductors are 24
AWG (7 strands).

SP

SP

NP

SPE

SPE

NP

Selec

Figure 12 EtherNet/IP In-cabinet cable

NP, SP lines are rated at 4 amps. To prevent incorrect connector orientation, the cable design uniquefeature is the asymmetrical design of conductors, preventing wrong connector orientation.
EtherNet/IP In-Cabinet Connectors
Plug Connectors interconnect signals between a bus cable and a device Jack Connector. The connectors
are applied to a flat cable by a tool that closes the connector housing, causing insulation
displacement/piercing connections to penetrate the cable insulation, providing electrical connection to all
the cable signals. Cable connectors are easily installed using standard pilers with no special installation
tool required. Connector, when installed will sever the SPE and Select line and inline inductors compensate
for node capacitance as shown in Fig. 13.

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Figure 14 Plug Connector P1 Circuit

NP Power for Communication Electronics

Figure 15 First Power Tap block diagram and NP PowerA First Power Tap is illustrated in Figure 15 and connects to flat cable media via Jack Connector shown in
the Figure 14 diagram. The Jack Connector attaches to the entire set of signals on the cable, and supplies
NP and SP. External power (24VDC, SELV or PELV compliant) is conditioned and used to generate NP
and SP. The conditioning may include EMI filtering, reverse polarity protection, and overvoltage protection.
NP and SP are each protected by current limitations. SP includes a shutdown circuit for sequenced controlof the loads. Because the First Power Tap is placed at the end of the bus, it must provide the termination
circuit for all the signals on the cable. The First Power Tap may optionally embed bus communication
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functionality. If communication is not implemented, the SEL, SPE+, and SPE- signals route only from theJack Connector to the matching termination circuit. If communication is implemented, additional inductors
are added to compensate for the media dependent interface (MDI) capacitance. If the First Power Tap
implements a bus communication circuit; it shall also implement one, Select Line transceiver circuit and thecircuit is only required to drive the SEL line.
100 milliamps are allowed for each end node device, so one power tap has enough current for all
40 nodes on the network. This allows all end node devices to tap on the same power bus for their
network power.
Network output power is maxed at 100 VA, compliant to NEC class 2. This allows the end node device
circuit to be simplified as it requires no further protection for shock or fire hazards.

Table 16 Network Power Specification

The table below enumerates the advantages and disadvantages of a continuous bus source.
Advantages

Disadvantages

One continuous bus connection

Required terminator at end of the bus

Reduction in wiring (just tap off the bus)

Excessive current draw from a single device
could impact the overall supply quality

Disconnecting a device without impact to otherconnections
Integrated diagnostics / fault handling likeovervoltage, undervoltage
Right sized DC supply – based on system needs.
System detects if additional power is required forconnected network
Consistent power quality with a regulated, SELV
(Safety Extra Low Voltage), Class 2 rated supply
SP Power for Coil Control
No additional or separate control power wiring is required for energizing the contactor coil. Additional
ampacity (8 amps max for up to 100 milliseconds) provides for multiple devices to be energized at the sametime providing the capability of controlling different zones of control. If primary switched power ampacity is
exceeded the use of an in-line supplemental power tap is required, consider this simply an in-line power
boost to renew the SP power to 4 amps. The same 24V DC supply can be used for multiple power taps.

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Table17: Switched Power Specification

Figure 18: Supplemental Power Tap block diagram

A Supplemental Power Tap is illustrated in the block diagram shown in Figure 18. It connects to
two segments of SPE Cable via Plug Connectors. The upstream segment connection is shown on the upper
left, and the downstream segment connection is shown on the upper right. NP is passed through the
Supplemental Power Tap. SP is supplied from the Supplemental Power Tap to the downstream segment.
External power is conditioned and used to generate SP. The conditioning includes EMI filtering andovervoltage protection with optional reverse polarity protection. SP is protected by current limitation. SP
includes a shutdown circuit for sequenced control of the attached load set. The Supplemental Power Tap
may optionally embed bus communication functionality. If communication is not implemented, the SEL,
SPE+, and SPE- signals route only from one Jack Connector to the other Jack Connector.
Key Benefits for using separate SP Power No additional control power wires for coil control.
 Current boost capabilities allow more loads to be turned on at the same time.
 Additional switch power can be made available by supplemental power tap.
 The same 24V DC supply can be used for multiple power taps.
 Bank of loads can be powered by the same power tap, allows zone control.

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

Planning and installation tools can help users identify how much switch power is needed based on
the number of loads.

SP Power for Zone Control
Implementation of supplemental power taps can provide segmented control to one or more banks (i.e.,zones) of motor controllers within a larger control system. An example of establishing zone control
can be seen in the illustration below Figure 19.
The system illustration reflects the in-cabinet solution with 40 end node devices.
 Zone 1 - Switch power from first power tap/gateway 0 Zone 2 - Switch power from supplemental power tap node 14
 Zone 3 - Switch power from supplemental power tap node 3

Figure 19: Supplemental power taps for zone control

Select LineA single conductor that runs through In-cabinet media facilitates sequential command delivery. Applicationof Plug Connectors to the bus cable, severs the select line into separate segments. The two segments
adjacent to each node are brought into the node on Jack Connector pins. SEL_A and SEL_B as shown in
Figure 20. A signal chain is formed by the segments, the attached Select Line Circuits, and the MCUs. On
initial power up, the “Select A” and “Select B” pins on all nodes are configured to be input pins. After a firstmessage is detected on one of the Select pins, the other Select pin is configured to be an output pin. Systemwide sequential commands are delivered for actual topology discovery, system commissioning and device
replacement operations.

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Figure 20: Interconnection diagram for Select Line

Select Line Enables Discovery of Actual Topology
A “Nodal Topology” is a complete ordered set for all devices on a network. The In-cabinet Actual Topology
Object works together with the Select Line Link Object and the LLDP Data Table Object to capture thenodal topology for an In-cabinet network segment. The node that implements the In-cabinet Actual
Topology Object must be the first (leftmost or rightmost) node on the network segment.

Figure 21: Actual Topology information enabled by the Select Line

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Select Line is Agnostic of Cable Routing Direction
The Select line is bi-directional and flat media can be routed left to right or right to the left. The advantage
to panel builders will minimize excess cable length to make cable routing neat, clean and easy to trackdown devices by visually following the flat cable.
A significant advantage is the ability to change the panel component layout and routing of the cable without
impact to the PLC ladder logic program.

Figure 22: Agnostic cable routing

Select Line Enables In-Cabinet Commissioning
The In-Cabinet Commissioning Object works with the Select Line Link Object and the In-Cabinet Actual
Topology Object to facilitate node commissioning (configuration of T1S PHY settings, and TCP/IP Interface
Object) for EtherNet/IP In-cabinet network.
The node containing the In-Cabinet Commissioning Object must be the first (leftmost or rightmost) node on
the SPE network as shown in Figure 23.
Various addressing schemes (using the last octet of the IP address) can be implemented.
Sequential IP addressing based on topology location of the devices on the cable.
Next Available IP addressing based on “next available node address” for each newly added device.
Manual IP addressing to match the address in the Reference Topology.

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Figure 23: In-Cabinet Commissioning Object in CIP Router

Select Line Enables Auto Device Replacement
In the event of an end-node failure, the Gateway (CIP Router) will detect a new end-node, deploy a
Discovery service, and determine the topology.
This process would be initiated when the 24V DC control power to the system is switched off, the failed
device is removed and a new device is installed, re-connected to media, and re-applying 24VDC control
power. This triggers the Gateway (CIP Router) to initiate the Discover Topology Service to determine theactual topology. When the reference topology and new actual topology match, the Gateway configures theend node with the IP address of the replaced node. The connected system PLC will respond and download
the configuration parameters to the new devices and re-establish all IO connections.

Figure 24: Select Line provides device location to initiate Automatic Device Replacement

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Cable Conformance
The minimum specification and requirements for 7-Conductor flat media cable are shown in Figure 25.

Figure 25: Flat cable media specifications and conformance

Actual cable sample measurements are shown below to show full compliance to the specifications.

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Figure 26: Data from Actual Cable Sample Measurement

The EtherNet/IP in-cabinet solution is designed to be robust and able to fully meet EMC compliancerequirements in an industrial electromagnetic environment. Conducted immunity and fast transient burst
test results are shown below as two examples.
EMC-Conducted Immunity
Setup• EtherNet/IP in-cabinet proto cable and connectors.
• EtherNet/IP Node 0 is the master node.
• EtherNet/IP Node 1 is the DUT.
• Conducted immunity test per IEC/EN 61000-4-6• 10V is the test level required by products.

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Acceptance criteria
Criteria A, Equipment should operate normally during and after EMC testing.
Configurations:(1) 10V with AM on Master node 0: transmitting node
DUT Node 1: receiving nodePassed BER
no loss of packet.
(2) 10V with AM on Master node 0: receiving node.
DUT Node 1: transmitting node Passed BER
no loss of packet.
Test Conclusion:
EtherNet/IP in-cabinet solution showed good performance during preliminary conducted immunity testing.

EMC-Fast Transient
Setup• 25 meters EtherNet/IP in-cabinet cable and connector protos.
• EtherNet/IP in-cabinet Node 0 is the transmitting node.
• EtherNet/IP in-cabinet Node 1 is the DUT and the receiving node.
• Conducted test per IEC/EN 61000-4-4

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Acceptance criteria
Criteria B, temporary degradation or loss of performance which is self-recoverable. PASS

Test Conclusion:
The EtherNet/IP in-cabinet solution showed good performance during preliminary EFT testing.

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Summary
The EtherNet/IP in-cabinet solution provides communication interface accessories to connect existing
industrial control components to create a single multi-drop in-cabinet network. The communication interface
provides all appropriate electrical connections to each component to operate without the need to connect
additional control wiring.
A significant cost in electrical control cabinet design & build is labor, individual point-to-point control wiring
for industrial control components such as contactors, push buttons, pilot lights, programmable logic
controller input cards, programmable logic controller output cards, etc. System integrators and OEMs arecontinuously looking for more efficient ways to design, wire, test, and commission an electrical control panel
to be more competitive in their market space.
In panel components such as direct-on-line motor control and panel operators account for a significant
number of individual wires per circuit based on the control scheme. Eliminating this traditional hard wiring
can dramatically reduce costs in the overall design and installation phase. Validated time study initiatives
have shown that reductions of 30% in project engineering and 80% in installation time are achievable whencompared to conventional hardwire control. Other areas of reduction include both capital equipment andpanel sizing.
Beyond the installation advantages, the EtherNet/IP in-cabinet solution provides additional device-levelinsights for better diagnostics, troubleshooting and maintaining device-level assets.
Hardwired control circuits perform functional operation but lack the device-level diagnostics to evaluate theend device health. In-cabinet devices have assigned IP addresses for control, monitoring, and preventative
maintenance data. Configuration and commissioning leverage the same programming tools used bystandard EtherNet/IP devices. Further integration with the advanced industrial application software can help
users manage and maintain installed assets to avoid disruption with unplanned downtimes.
Leveraging ODVA’s open standard for EtherNet/IP constrained in-cabinet devices is significant and willtransition in-cabinet industrial components to the next level!

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Background Material
1. DeviceNet of Things - Use Cases, Value Proposition and Status of Specification: 2017-ODVAConference_Caspers_DOT_FINAL
2. 2018-ODVAConference_Brandt_Xu_Hahniche_Dietrich_Enhancements_to_EtherNetIP_for_Constrained_De
vices_and_Networks_Paper_FINAL
3. John Harmon, 6 DeviceNet Sins Not to Repeat with EtherNet/IP, Sensortech, May 19, 2010
4. NAMUR, “Position paper An Ethernet communication system for the process industry”,
http://www.namur.net/fileadmin/media_www/Dokumente/Anforderung_Ethernet-NAMUR_201602-25_EN.pdf
5. IEEE 802.3 CFI, “10 Mb/s Extended Reach Single Twisted Pair Ethernet PHY”,
http://www.ieee802.org/3/cfi/0716_1/CFI_01_0716.pdf
6. IEEE 802.3 SG, “10SPE” (10 Mb/s Single Pair Ethernet),
http://www.ieee802.org/3/10SPE/index.htm
7. IEEE 802.3cg (10SPE) – 10 Mb/s Single Pair Ethernet Meeting Industrial Automation Objectives:
2017-ODVA-Conference_Brandt Xu Haehniche_IEEE-802-3cg-10SPE_R0_FINAL
8. Resource-constrained Industrial Things - Proposal for the Adaptation of CoAP to EtherNet/IP:
2017-ODVA-Conference_Green Otterdahl_CoAP_FINAL
9. EtherNet/IP to the Edge – A Concept for "Low-complexity Ethernet”: 2017-ODVAConference_Alsup_Weingartner_Low-complexity_Ethernet_FINAL
10. Extending
EtherNet/IP™
toResource-Constrained
Industrial
Things:2015_ODVA_Conference_Xu-Brooks_Extending-EtherNetIP-to-Resource-Constrained-IndustrialThings-FINAL
11. CIP
over
6LoWPAN:
ExpandCIP
toIPv6-based
Field
Wireless
Network:
2014_ODVA_Conference_Xu_Brooks_Yu_Brandt_CIP_over_6LoWPAN_FINAL.
***********************************************************************************************************************************************The ideas, opinions, and recommendations expressed herein are intended to describe concepts of the author(s) for the possible useof ODVA technologies and do not reflect the ideas, opinions, and recommendation of ODVA per se. Because ODVA technologies
may be applied in many diverse situations and in conjunction with products and systems from multiple vendors, the reader and those
responsible for specifying ODVA networks must determine for themselves the suitability and the suitability of ideas, opinions, andrecommendations expressed herein for intended use. Copyright ©2020 ODVA, Inc. All rights reserved. For permission to reproduce
excerpts of this material, with appropriate attribution to the author(s), please contact ODVA on: TEL +1 734-975-8840 FAX +1 734922-0027 EMAIL odva@odva.org WEB www.odva.org. CIP, Common Industrial Protocol, CIP Energy, CIP Motion, CIP Safety, CIP
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2023 ODVA Industry Conference25©2023 ODVA, Inc.