Emerson Product Description DeltaV SD Plus Controller

Product Description

The SD Plus controller executes control logic based on the process signals derived

from the I/O subsystem and provides communication 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.

Redundancy is provided by adding a second controller and power supply

mounted adjacent to the primary controller.

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 field bus 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.

The SD Plus also supports CHARMS and WirelessHART IO cards.

The CHARMS I/O card (CIOC) connects via the redundant Ethernet

ports of the controller and provide a highly distributed and flexible I/O solution called Electronic Marshalling.

Up to 16 CIOC’s can communicate with one controller, each providing up to 96 individually configurable signal types.

The WirelessHART I/O card provides redundant communication for up to 100 WirelessHART devices,

providing high availability and reliability of wireless data.

Up to 16 Wireless HART I/O cards can communicate to a single controller.

Control modules are automatically scheduled by the controller, based on their assigned scan rates.

This allows each control function to be optimized based on the process dynamics.

Modules scan times can be set as fast as 100 ms, and as slow as 60 seconds.

The number of control modules that can be assigned to a controller depends

on the complexity and scan rate of each module, and the available CPU and memory.

The SD Plus controller should be used for small to medium applications with a maximum of 750 individual I/O signals.

The SD Plus controller is designed for harsh environments and is rated for G3 corrosive environments,

with an operating temperature range from -40 to 70 ºC.

It is ideally suited for remote installation, close to the process equipment.

For more traditional installations with central marshalling cabinets,

CHARMS I/O cards can be mounted in standard I/O cabinets providing Electronic Marshalling.

CHARMS I/O Cards can also be used for highly distributed I/O applications.