The SDe I/O family includes a range of redundancy-enabled, intelligent analog, HART, digital, and mixed I/O modules that communicate with parent controllers over the native bus. Each module couples with an evolution mounting base for use in Harmony Rack systems and is fully compatible with the HR BRC410 and SD controllers.
The SDe Series I/O product family includes DIN Rail horizontally or vertically mounted digital and analog modules, as well as integration with intelligent field devices and protocols. Hardwire I/O and Fieldbus I/O coexist and use the same function block library to build real-time control applications.
Traditional SDe Series analog input modules interface with field inputs such as pressure and flow transmitter signals, thermocouple inputs, and resistive temperature device (RTD) inputs. Analog output modules provide output signals to adjust final control elements such as control valves, positioners, actuators, etc. SDe Series digital input modules have input channels to read the states of switches, relay contacts, solenoids, etc. Digital output modules provide output channels for DC or AC switching applications.
The digital outputs can be used to drive annunciators and drive two-state final control elements such as actuators, relays, and solenoids. For SDe Series Digital I/O, each channel can be individually configured as an SOE (Sequence of Events) point. This flexibility removes the cost and complexity of assigning additional digital inputs as SOE in the field. SOE with a 1 msec timestamp is available across the entire system, whether the I/O is local or remotely located.
Below is an outline of the range of different SDe I/O modules available.