Month: July 2025

The WIOC uses the Smart Wireless technology supported by

WirelessHART devices and a Self-Organizing Network.

„„ No wireless expertise is required; devices automatically find

the best communication paths with Adaptive Mesh Routing.

„„ Network continuously monitors paths for

degradation and repairs itself.

„„ Adaptive behavior provides reliable, hands-off

operation and simplifies network deployments,

expansion, and reconfiguration.

If an obstruction is introduced into the mesh network, devices

will find the best alternate communication path. This alternate

path is automatically created by the network management

software and the device information will continue to flow.

WirelessHART Integration with the DeltaV

System and AMS Device Manager

Native integration with the DeltaV system enables you to

autosense the WIOC and easily commission it for seamless

integration with all DeltaV applications: Explorer, Diagnostics,

and Control Studio. The WIOC is commissioned into the DeltaV

I/O network and counts as one of the 300 I/O nodes.

Product Description

The WIOC is a native DeltaV I/O node that supports up to 100

wireless devices. The cards install on a 2-wide carrier, with each

card having its own Smart Wireless Field link. The WIOC can be

commissioned in a simplex mode if no redundancy is needed.

The WIOC allows redundancy to be completed later, when

needed – online and bumpless.

The WIOC carrier has two Ethernet IO Ports that connect to the

DeltaV Area Control Network and are available with copper or

fiberoptic media. The Smart Wireless Field links are connected

to the I/O card using a 4-conductor cable. The cable has a pair of

wires for power and a pair for the communication to the

field link.

The WIOC uses the Smart Wireless technology supported by

WirelessHART devices and a Self-Organizing Network.

„„ No wireless expertise is required; devices automatically find

the best communication paths with Adaptive Mesh Routing.

„„ Network continuously monitors paths for

degradation and repairs itself.

„„ Adaptive behavior provides reliable, hands-off

operation and simplifies network deployments,

expansion, and reconfiguration.

• Fully redundant wireless solution from Wireless

I/O Card (WIOC) to the Smart Wireless Field Link

• Optional simplex for smaller applications

• Seamless integration with DeltaV™ system and

AMS Device Manager

• Industry proven security

• WirelessHART® delivers PlantWeb®

Introduction

A robust wireless solution is much more than the sum of its

parts; it is the result of innovative integration with consideration

given to every aspect of the overall system. A Smart Wireless

solution consists of the measurement devices, the selforganizing

network, and easy integration with the DeltaV system.

Emerson Automation Solutions offers a full portfolio

of wireless solutions enabled by self-organizing WirelessHART

networks. The DeltaV system and AMS Device Manager provide

seamless integration with the Wireless I/O Card. WirelessHART

devices are the easiest devices to add to your existing control

system! All the benefits of HART including HART device alerts

for wireless devices are native with the latest DeltaV system and

AMS Device Manager releases.

Product Description

The SX controller primary function is to execute control

modules that are designed to meet the specific control

requirements of the plant. These control modules use process

signals from the controller’s I/O subsystem and provide

communication of process data to the rest of the DeltaV

control system for operator interaction and data collection.

Each controller node can be installed as a simplex or redundant

node. The controllers are connected to the I/O carriers,

which are mounted to the right of the controller carriers.

Up to 8 carriers with 8 cards each can be connected to the

local bus I/O, for a total of 64 traditional I/O cards. In addition

to the 8 local I/O carriers, each controller can communicate

with an additional 16 Remote I/O units hosting traditional

card based I/O.

In addition to traditional I/O cards, the local bus supports

fieldbus technologies, including Foundation fieldbus, Profibus DP,

DeviceNet and AS-i protocols. The I/O subsystem also supports

Serial interface cards as well as the Ethernet I/O interface.

These various I/O products provide a wide range of interfaces

to meet the needs of your control application.

„ Scalable controllers

„ Quick assembly

„ Easy-to-use

„ Field proven architecture

„ Designed for Electronic Marshalling

„ Advanced controls

Introduction

The DeltaV™ SX controller provide communication and

control functions and integrate field devices and the other

nodes on the control network. The SX and SQ controllers

provide a choice to match the controller capacity to the

requirements of the process. They also provide new ease

of use features that eliminate mounting screws and accelerate

cabinet assembly.

Control strategies and system configurations created on

earlier DeltaV systems can be used with this powerful

controller. The SX Controller provides all the features

and functions of the M-series controllers including support

for CHARM based Electronic Marshalling.

The control languages executed in the controllers are

described in the Control Software product data sheet.

Events that can cause a switchover include:

„ Hardware failure within the active card.

„ Communications failure between the active card

and the controller.

„ Detection of a fault in the field wiring.

A switchover may also be initiated from the diagnostics explorer, and the health and status of both cards and their channels are

available in the diagnostics explorer.

The system automatically commissions a new standby card. In safe areas, failed cards can be replaced under power.

In hazardous areas, appropriate installation procedures must be followed.

Switchover of a redundant I/O card is completed within

two scans of the I/O bus. Make-before-break contacts ensure

digital field instruments remain powered and the process

is undisturbed. Analog output signals are briefly driven by

both cards for <5 ms during switchover of the card.

Hardware alerts automatically report hardware integrity errors

for both the primary and secondary cards. Any event that

causes a switchover is also reported automatically through the

system hardware alerts and is logged in the Event Chronicle.

I/O Card Redundancy

Redundant I/O cards are available for critical applications.

The same card can be used in simplex or redundant

applications. When installed on a two-wide redundant terminal

block, the cards are recognized as a redundant pair by the

controller. The controller scans each card and determines which

card is acting as the active interface. When a fault is detected,

the system automatically switches to the standby I/O card.

DeltaV control modules reference simplex and redundant

I/O channels identically and there is no special configuration

required to take advantage of redundancy.

Switchover of a redundant I/O card is completed within

two scans of the I/O bus. Make-before-break contacts ensure

digital field instruments remain powered and the process

is undisturbed. Analog output signals are briefly driven by

both cards for <5 ms during switchover of the card.

Hardware alerts automatically report hardware integrity errors

for both the primary and secondary cards. Any event that

causes a switchover is also reported automatically through the

system hardware alerts and is logged in the Event Chronicle.

Switchover Detection

The redundant controllers continuously monitor themselves

and each other for conditions that require a switchover. Each

controller runs continuous self-test routines to determine their

ability to function. A hard failure of the active controller will trigger

an immediate switchover to the standby controller. The standby

controller also monitors the I/O bus traffic to detect if the active

controller stops functioning and failed to issue a switchover

command. This switchover requires a verification cycle, during

which time all output signals hold their values until the new active

controller begins executing control strategies.

Replacing an existing standby controller is as simple as removing

the existing unit and installing a new controller. The active

controller will detect the standby and the system will automatically

commission and download the new hardware. A redundancy

license is required in addition to the redundant hardware. The

redundant controller appears in the Explorer window as a single

node, indicated by a redundant controller icon.

Product Description

For critical process control applications where you can’t afford

interruptions, the DeltaV system offers controller redundancy.

The standby controller contains the same control strategies as

the active controller and the redundancy link transfers control

parameters to the standby controller to ensure it is ready to take

control if needed.

With redundancy enabled, each module will calculate the

required updates for the Standby controller when it executes.

These updates are transferred to the standby controller over

the redundancy link. These additional operations for controller

redundancy will typically reduce your CPU free time by

approximately 10%.

When a fault is detected, the standby controller can take over

without bumping the process control signals. The DeltaV Event

Chronicle stores a record of each switchover and the reason it

occurred (if the reason has been identified).

• Uninterrupted control operation

• Online upgradeable

• Automatic commissioning

• Bumpless transition

Introduction

Now you don’t have to worry about a controller hardware failure

interrupting your process and causing costly downtime. Using a

redundant controller, your process is automatically protected in

case of a hardware failure.

If an active controller fails, the standby controller takes over

automatically, providing uninterrupted control operation

without initialization or user intervention. The switchover

generates no disturbances to the field output signals, so your

process continues to run without impact. There is no special

cabling or configuration required to add redundancy, simply

add a controller to your existing hardware.

Redundant controllers also support the upgrade of controller

firmware and hardware online. You can therefore upgrade

your MD Plus to an MQ or MX or your SD Plus to an SQ or SX

controller online, with no configuration changes