The DeltaV system offers redundant H1 interfaces. The two H1
interfaces are connected with a redundant terminal block to
provide back-up link active schedule (LAS) capability that also
maintains communication with the host system.
Transfer to the standby card is automatic and requires no special configuration.
Ongoing diagnostics ensure the standby H1 card is available on demand.
This process requires no user interaction.

Emerson Process Management continues its long-standing
excellence in providing solid control solutions with the S-Series
DeltaV™ Controller Interface for PROVOX I/O and DeltaV SQ
or SX Controllers. You can transition to DeltaV controllers
and connect to PROVOX I/O already installed in your plant,
continuing to maximize your original PROVOX I/O investment.
The DeltaV Controller Interface for PROVOX I/O can be used
with both Control I/O and Distributed (MUX) I/O, which
connects using the serial buffer card. The interface to PROVOX
I/O uses an SQ or SX controller and a DeltaV power supply
installed on the PROVOX I/O Carrier.
With this solution, PROVOX I/O support is integrated into
standard DeltaV engineering and diagnostics, including DeltaV
Explorer and Control Studio.
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