SCRIPT Controls
Systecon’s central plant controls, SCRIPT, utilize the latest technology when applied to digital central plant controls. Systecon’s Remote Integrated PLC Technology consists of a programmable logic controller (PLC) and human machine interface (HMI) that actively monitors and controls the active elements in a central plant. The SCRIPT platform allows for the speed, reliability, and redundancy needed for today’s central plant operations. All SCRIPT controls are UL listed and all Systecon products are ETL listed. With these listings, Systecon eliminates risk and provides a safe product. SCRIPT controls are OSHPD (Office of Statewide Health Planning and Development) approved and carry OSHPD OSP-0068-10 for HVAC Control Panels.
SCRIPT utilizes the latest PLC technology made available by Allen-Bradley, the leader in PLC technology. PLCs offer speed, reliability, and redundancy that are unmatched with other control technologies. Utilizing the PLCs speed, it reads all system inputs twice a second, allows for SCRIPT to react quickly to changing load conditions and eliminates hunting that occurs with slower acting controls. With failure rates less than one per 100,000 hours of operation, SCRIPT offers the reliability needed for today’s central plants. Today’s applications require redundancy of controls; SCRIPT offers redundant power supply, processor, and I/O for central plants.
SCRIPT’s HMI allows for quick viewing and adjustment of the controls of the central plant. The HMI is available in a variety of sizes, up to 17 inches, allowing for more data points and equipment to be shown for the user. SCRIPT’s HMI is not used to run operations of the central plant, which separates SCRIPT from many of its competitors, which allows the HMI to be used to view training videos, operations and maintenance manuals, and other system documentation.
SCRIPT allows for plant optimization using several techniques, including wire-to-water efficiency, chiller sequencing, free cooling, and thermal storage. Wire-to-Water Efficiency was developed by Systecon in the 1980’s to allow for better pump selection and sequencing. Wire-to-Water determines the overall efficiency of the complete pumping package by evaluating the inefficiencies of the pumps, motors and drives at the various flow and head scenarios seen in a dynamic pumping system. Wire-to-Water continuously calculates the overall system efficiency to make intelligent decisions, which maximize performance and minimize power consumption.
SCRIPT can be fully integrated with all building automation systems. SCRIPT includes an approved BACnet device that allows for communications through BACnet, Modbus, LonWorks, and N2.
