Emerson SE4002S1T1B2 Discrete Output Card

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.

Tighter, More ReliableControl

The Ovation system is renowned for delivering precision control with outstanding performance. 

That precision begins with the Ovation Controller. With an Intel-based 

processor at its heart, the Ovation Controller provides full-redundancy to assure the reliability 

and security necessary for even the most demanding application. 

In addition to a comprehensive set of over 100 standard algorithms, 

Ovation also provides the ability to embed advanced control algorithms that leverage the ever expanding 

computing power of the Ovation Controller. 

This capability allows you to take control to a higher level by incorporating model predictive control and 

industry specific advanced applications to reduce process variability and optimize performance over the full range of plant operating conditions.

I/O Cards

A variety of analog and discrete I/O cards are available to meet

your specific requirements. The following cards support simplex or redundant installation:

„ AI 4-20 mA HART 8 channels

„ AO-4-20 mA HART 8 channels

„ DI, 24V DC Dry Contact, 8 channels

„ DO 24V DC High-Side, 8 channels

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.

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