EMERSON 1100-en-67350 ovation-controller-model-ocr

EMERSON 1100-en-67350 ovation-controller-model-ocr

DESCRIPTION

Emerson’s Ovation™ distributed control system is renowned for delivering precision control with outstanding performance. That precision begins with the Ovation controller secure, mission-critical  operations such as those of power generation, water  and wastewater plants.  The OCR1100 model of the Ovation controller series executes simple or complex modulating and  sequential control strategies, performs data  acquisition functions and interfaces to the Ovation  network and various I/O sub-systems. It has the  capability to originate up to 32,000 points.

Features 

· Secure, reliable and mission-critical control  capability providing “bumpless” automatic failover  between redundant controllers. 

· Fast processor for increased productivity 

· One-step data acquisition functionality through the  definition of the I/O database 

· Small footprint with low power requirements and  fanless operation 

· Interfaces to Ovation and WDPF I/O, both local and  remote 

· Integral interface to digital busses through Ovation  I/O modules 

· Integrated virtual I/O capability for third-party OEM  systems over Ethernet protocols. 

· Non-volatile storage of application software, point  database, configuration information, and operating  tuning constants 

· Integrated sequence of events capability with 1  millisecond resolution 

·Meets IEC 61131-3 standards 

· Achilles Level 1 certified

Functions performed by the  controller include: 

· Continuous (PID) control 

· Boolean logic 

· Advanced control 

· Special logic and timing functions 

· Data acquisition 

· Sequence of events processing 

· Cold junction compensation

· Process point sensor/limit checking 

· Process point alarm processing 

· Process point conversion to engineering units 

· Process point database storage 

· Local and remote I/O interface 

· Process point tagout

Control Scheme 

OCR1100 functionality is defined by control sheets created from an extensive library of standard and advanced Ovation algorithms specifically designed for the power, water and wastewater industries. Control sheets provide the basis for executing, documenting and automatically creating control tuning diagrams used during commissioning and when adjusting control schemes. On average, the OCC100 controller can execute more than 1,000 control sheets.

Sequence-of-Events 

Integral sequence-of-events processing capability is provided using Ovation I/O and standard controller software. With a resolution of one millisecond, the sequence-of-events subsystem records the sequence in which a set of user-defined digital input indications change state, providing a valuable troubleshooting and diagnostic tool for high-speed electrical systems.

Alarm Processing 

The OCR1100 processes limits and alarms based on each process point’s database definition. These functions are performed regardless of whether the point is scanned for input to a control loop or for data acquisition separate from control functions.  

The alarm status of each point in the controller is  updated with each scan. The status may indicate  whether a point value has: 

· Exceeded the range of the sensor 

· Exceeded the user-defined limits 

· Changed state 

· Passed an incremental limit