The Other 5 Wires in the SPE In-Cabinet Solution
Changing the way Industrial Control Panels aredesigned, built and commissioned
Yutao (Tony) Wang
Kelly Passineau
Chirag Malkan

Rockwell Automation, Inc.
Rockwell Automation, Inc.
Rockwell Automation, Inc.

Conventional Industrial Panel “Before”▪ Manual wiring takes longer▪ High potential for mis-wire or lose
connections▪ Manual wire connection test takes longer▪ Densely packed panel reduces thermal
dissipation reducing panel life or requires
bigger panel

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Industrial SPE In-Cabinet Panel▪ 10% or more reduction in panelspace▪ 80% reduction in wiring and timerequired to wire
▪ 50% reduction in testing time
▪ 30% reduction in project eng. time
▪ Optimized for thermal disposition forlong panel life
▪ Helps reduce time & effort todiagnose a problem▪ Due to reduced downtime byincreasing visibility of panel
diagnostics & overall health▪ With highly secure smart
infrastruture
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Total Cost of Ownership – Lowered with ODVA SPE Industrial In-Cabinet MediaSPE In-Cabinet

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4System Overview

SPE In-Cabinet Panel

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NP Power 4Amp
continuous for 40 nodes▪

SP Power 4Amp
continuous, 8Amp up to100ms for driving large
load, contactor coil, etc.

▪

25-meter total cable length▪

Multi-drop 10Base-T1S
based on IEEE 802.3cg
standard5

ODVA Spec

10BASE-T1S from IEEE 802.3cg▪

Half-duplex multidrop (8 nodes,25m)▪

Half-duplex or full-duplex pointto-point▪

10 Mb/s, 1Vpp▪

Multidrop allows larger PHY
count provided the mixing
segment specifications in 147.8
are metIEEE

IEEE 802.3cg-2019
IEEE Standard for Ethernet - Amendment 5:
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Modelling

ODVAIEEE Mixing
Segment
Characteristics

Simulation

HardwareMeasurement

40 Total Devices, 25 m CableODVA Spec forCable + Connector

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6SPE In-Cabinet Cable▪

▪
▪
▪
▪

7 Conductors
20AWG wires (19 strands) for NP-, NP+, SP+, SP24AWG wires (7 strands) for SPE+, SPE-, Select line
4A current for NP-, NP+, SP+, SP- lines
SPE conductors will be used as keying feature toprevent wrong connector orientation.

SP-

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SP+

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SPE-NP-

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Select7

SPE Industrial In-Cabinet Connector▪
▪
▪

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Inline inductors to compensate fornode capacitance.
Ease of use for field termination
with a standard plier
SPE and Select line weresevered.

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8NP Power for Communication Electronics

Key Benefits▪
▪
▪

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100mA is allowed for end node device, one
power tap has enough current for all 40
nodes.
Allows all end node devices to tap on thesame power bus.
End node devices circuit simplified andrequire no further protection for shock or firehazards.
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9SP Power for Coil Control

Key Benefits▪
▪
▪
▪

▪
▪
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No additional control power wires for coil control
Current boost capabilities allow more loads to beturned on at the same time.
Additional switch power can be made available bysupplemental power tap.
Same 24V DC supply can be used for multiple powertapsBank of loads can be powered by the same power tap,allows zone control.
Planning and installation tool can help users identify
how much switch power is needed based on thenumber of loads.
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SP Power for Zone Control

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SPE in-cabinet solution
with 40 nodes▪

Switch power from firstpower tap/gateway 0for Zone 1▪

Switch power fromsupplemental power
tap node 14 for Zone 2▪

Switch power fromsupplemental power
tap node 3 for Zone 311Select Line

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▪

A single conductor that runs through In-Cabinet
media to facilitate sequential command delivery.

▪

“Select” line is severed by media connector
resulting in “Select A” and “Select B” lines▪

On initial power up, the “Select A” and “Select B”
pins on all nodes are configured to be input pins▪

After a first message is detected on one of theSelect pins, the other Select pin is configured to
be an output pin▪

System wide sequential commands delivered foractual topology discovery, system commissioningand device replacement operations.

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12Select Line Enables Discovery of Actual Topology

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▪

A “Nodal Topology” is a complete ordered
set for all devices on a network.

▪

In-Cabinet Actual Topology Object works
together with the Select Line Link Object
and the LLDP Data Table Object tocapture the nodal topology for an SPE InCabinet network segment.

▪

Node implements the In-Cabinet ActualTopology Object must be the first(leftmost or rightmost) node on thenetwork segment

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Select Line Enables Agnostic Cable Routing Direction

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▪

Select line is bi-directional, cable
can be routed from left to right orright to the left.

▪

Panel builder can minimize cable
length, make cable routing neatand clean.

▪

It makes it easy to track down
devices by following the flatcable.

▪

Panel builders can change panel
component layout, re-route thecable and don’t have to update
ladder logic program.
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Select Line Enables SPE In-Cabinet Commissioning▪

In-Cabinet Commissioning Object works with the Select Line
Link Object and the In-Cabinet Actual Topology Object tofacilitate node commissioning (configuration of T1S PHY
settings, and TCP/IP Interface Object) for SPE In-Cabinetnetwork.

▪

Node containing the In-Cabinet Commissioning Object must be
the first (leftmost or rightmost) node on the SPE network.

▪

Various addressing scheme ( last octet of IP address) can be
implemented
Sequential full: addresses are sequential based on topology
location of the devices on the cable.
Sequential light: addresses are sequential based on “nextavailable node address” for each newly added device.
Traditional node commissioning: pump is always set at 20.

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Select Line Enables Auto Device Replacement
New Devices are Auto-Replaced

2 devices are to bereplaced

CIP Router

2 compatible devices
are detected

CIP Router4 5 6 71Relays

▪
▪
▪
▪
▪
▪

82 34 5 6 791

Starters

Push Button

82 3Relays

Starters

9

Push ButtonTurn off the 24V DC control power to the system. Remove the cable connection from the SPE end nodes.
Install the replacement devices from new out-of-the box. Re-apply 24Vdc control power.
Gateway (CIP Router) will detect the new end node devices and will initiate Discover Topology Service to determine the actualtopology.
When the reference topology and new actual topology match, the Gateway configures the end node with the same IP address.
Controller sends the configuration parameters to the new devices.
All IO connections will get re-established.
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Cable Conformance

Data from Actual Cable Sample Measurement
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EMC-Conducted Immunity
Setup•••••SPE in-cabinet proto cable and connectors.
SPE Node 0 is the master node.
SPE Node 1 is the DUT.
Conducted immunity test per IEC/EN 61000-4-6
10V is the Test level required by products.

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 nodePassed BER no loss of packet.

Conclusion: SPE in-cabinet solution showed good performance during conducted immunity testing.
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EMC-Fast Transient

Setup••••

25meter SPE-In Cabinet cable and connectorprotos.
SPE in-cabinet Node 0 is the transmitting node.
SPE in-cabinet Node 1 is the DUT and thereceiving node.
Conducted test per IEC/EN 61000-4-4

Acceptance criteria•

Criteria B, temporary degradation or loss ofperformance which is self-recoverable. PASS

Conclusion: SPE in-cabinet solution showed good performance during preliminary EFT testing.
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SPE In-Cabinet Solution Demo

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