Emerson R2U2N1D3B1T1F RXi2-UP Industrial PC

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.

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.

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