Emerson DeltaV™ SX Controller Product WIOC

The SX controller also supports CHARMs and WirelessHART I/O

cards. The CHARM I/O Card (CIOC) connects via the redundant

Ethernet ports of the controller to provide a highly distributed

and flexible I/O solution called Electronic Marshalling. Up to

16 CIOC’s can communicate to one controller, each providing

up to 96 individually configurable signal types.

The capacity limits of the SX controller may vary depending on

the particular application, amount of CHARM I/O Signals and

as well control performance requirements. Enhanced memory

handling and hardware alerts covering capacity and memory,

via indexes, got added to the diagnostic information of the

SX Controller.

The WirelessHART I/O card (WIOC) provides redundant

communication for up to 100 WirelessHART devices,

providing high availability and reliability of wireless data.

Up to 16 WirelessHART I/O cards can communicate to

one controller, each providing up to 100 signals.

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 SX controller should be used for medium to large

applications with a maximum of 1500 individual I/O signals.

The SX controller is designed for harsh environments and

is rated for G3 corrosive environments, with an operating

temperature range from -40 to 60°C. It is ideally suited for larger

units with higher I/O counts. It can be field mounted close to

the equipment, or centrally located in an equipment room.

For more traditional installations with central marshalling

cabinets, CHARM I/O cards can be mounted in standard I/O

cabinets providing Electronic Marshalling. CHARM I/O cards

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