Product Description

The SD Plus controller executes control logic based on the process signals derived from the I/O subsystem and provides communication to the rest of the DeltaV control system for operator interaction and data collection.

Each controller node can be installed as a simplex or redundant node. Redundancy is provided by adding a second controller and power supply mounted adjacent to the primary controller. The controllers are connected to the I/O carriers, which are mounted to the right of the controller carriers. Up to 8 carriers with 8 cards each can be connected to the local bus I/O, for a total of 64 traditional I/O cards. In addition to the 8 local I/O carriers, each controller can communicate with an additional 16 Remote I/O units hosting traditional card based I/O.

In addition to traditional I/O cards, the local bus supports field bus technologies, including Foundation fieldbus, Profibus DP, DeviceNet and AS-I protocols. The I/O subsystem also supports Serial interface cards as well as the Ethernet I/O interface. These various I/O products provide a wide range of interfaces to meet the needs of your control application.

The SD Plus also supports CHARMS and WirelessHART IO cards. The CHARMS I/O card (CIOC) connects via the redundant Ethernet ports of the controller and provide a highly distributed and flexible I/O solution called Electronic Marshalling. Up to 16 CIOC’s can communicate with one controller, each providing up to 96 individually configurable signal types.