Emerson DeltaV™ M-series Zone 2 Remote I/O

Introduction

The DeltaV™ M-series Zone 2 Remote I/O architecture allows

I/O cards to be installed remotely from the controller and

provides communication and control between the field

devices connected to the Remote I/O subsystem and the

other nodes on the control network. Control strategies

and system configurations reside in the DeltaV system’s

powerful controllers.

Benefits

Shared remote I/O. DeltaV M-series Zone 2 Remote I/O can be

shared amongst several DeltaV controllers for a greater range

of applications and installation flexibility.

Easy plug-and-play installation. DeltaV M-series Zone

2 Remote I/O automatically identifies itself to the control

network, saving the usual no-value engineering work that

other automation systems require. Additionally, I/O cards are

recognized as they are inserted into the Remote I/O subsystem.

Easy to use. Like the traditional I/O in your DeltaV system,

the DeltaV controller manages all activities for your Zone

2 Remote I/O. The I/O cards supported by the Remote I/O

subsystem are the same as those used on M-series controllers –

saving you spares.

Product Description

The DeltaV M-series Zone 2 Remote I/O delivers big savings

in the installation process. The compact, modular design

allows you to cost-effectively meet your process needs.

The Remote I/O subsystem consists of a System Power

Supply and a Remote I/O Unit connected to an 8-wide I/O

carrier with up to 8 simplex I/O cards.

There are two versions of the Remote I/O Unit; the original

Remote I/O Unit (RIU), and the Next Generation Remote I/O

Unit 2 (RIU2). The RIU2 is a drop-in replacement for the

original RIU back to DeltaV v13.3.1 and has the same

functionality as the original RIU.

Shared remote I/O for maximum flexibility

I/O Targeting. The M-series Zone 2 Remote I/O Units supports

targeting of Classic I/O to controllers on a per card basis.

For example, a card can be owned by a controller, with different

I/O cards owned by a different controller, with the limit that a

Remote I/O Unit can support 4 controllers maximum.

Each DeltaV controller can have up to 16 Remote I/O Units

associated with it.

The DeltaV system supports up to 300 remote I/O Units1

and they communicate on the same Ethernet network as

the controllers and workstations.

The RIU2 supports 10/100MB communication on both primary

and secondary ports.

Data Passthrough. The controller is equipped with the

ability to pass smart HART® information from field devices

connected to a Remote I/O Unit to any workstation node

in the control network.

This means you can take advantage of applications, such as

AMS Device Manager that enable you to remotely manage the

HART information contained in your HART equipped devices.

Mounting. This plug-and-play system structure provides

modular system growth with a single controller and

is approved for remote mounting in a Class 1. Div 2 or

ATEX Zone 2 environment. Refer to the System Power

Supplies and I/O Subsystem Carriers product data sheets

for additional information.

I/O Types and Capacity. The RIU2 support one I/O carrier

of either Classic I/O or HART I/O. The Remote I/O Unit and

I/O cards can be installed on either horizontal or VerticalPlus

carriers. Any of the Classic or HART I/O cards may be utilized.

The HART data from the I/O channels can be used in a control

strategy, providing the user with the same experience using

remote I/O as when using local I/O.

Pulse Count Input card, Sequence of Events card, FOUNDATION

Fieldbus cards, Profibus DP card, DeviceNet card, AS-i card,

and Serial cards are not supported on the RIU2. I/O card

redundancy is also not supported.

Starting with the DeltaV v14.FP3 release, the RIU2 supports

the Series 2 Plus High-Density cards in simplex configuration.

Easy plug-and-play installation

Self-Addressing. The M-series Zone 2 Remote I/O Unit is

unique in its ability to automatically identify itself to the DeltaV

control network. When the Zone 2 Remote I/O Unit is powered

up, it is automatically assigned a unique address—

no dip switches, no configuring—just plug and play!

Self-Locating. An M-series Zone 2 Remote I/O Unit’s physical

location is easy to find. LEDs on the face of the Remote I/O Unit

can be made to flash, providing a strong visual cue.

Automatic I/O Detection. The M-series Zone 2 Remote I/O Unit

can identify all I/O interface channels located on the subsystem.

As soon as an I/O interface is plugged in, the Remote I/O Unit

knows the general characteristics of the field devices managed

by that I/O interface. This reduces the “no-value engineering”

associated with configuration—easy!

Easy to use

Total Control. The controller(s) manages all control

activities for the I/O interface channels. It also manages all

communication functions for the communications network.

Time stamping, alarming, and trend objects are also managed

within the controller(s). The controller(s) executes your control

strategy. Information from an input channel on a Remote I/O

Unit is received, control strategy applied, and data is sent to an

output channel on Remote I/O Unit within 200 ms on average -

assuming a 100 ms scan time for the I/O.