Emerson SE4002S1T2B2 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.

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.

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.

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.

Recommended Products P/N：

EMERSON DeltaV KJ1502X1-BA2 BULK AC TO 24 VDC POWER SUPPLY

EMERSON DeltaV KJ1611X1-EF1 Controller MODULE

EMERSON DeltaV KJ2101X1-BA1 PROVOX M3+ CONT CAR

EMERSON DeltaV KJ2101X1-CA1 PROVOX M3 CONT CAR

EMERSON DeltaV KJ2201X1-BA1  Logic Solver - SLS 1508

EMERSON DeltaV KJ2201X1-HA1  Simplex SLS Terminal Block

EMERSON DeltaV KJ2201X1-JA1  Redundant SLS Terminal Block

EMERSON DeltaV KJ2221X1-BA1 SISNet Repeater

EMERSON DeltaV KJ2221X1-EA1  SISNet Repeater Carrier

EMERSON DeltaV KJ2222X1-BA1  SISNet Distance Extender

EMERSON DeltaV KJ2231X1-BA1  Auxiliary Relay ETA-Direct Module

EMERSON DeltaV KJ2231X1-BB1  Auxiliary Relay DTA-Direct Module

EMERSON DeltaV KJ1700X1-BA1 Media Converter

EMERSON DeltaV KJ1710X1-BA1  Single Port Fiber Switch

EMERSON DeltaV KJ2003X1-BA2 MD Controller

EMERSON DeltaV KJ2003X1-BB1  MD Plus Controller

EMERSON DeltaV KJ2004X1-BA1  Remote Interface Unit

EMERSON DeltaV KJ2005X1-BA1  MX Controller