What Is Fuel System Controls Manufacturing And Installation For Buildings?
Control Systems
A control system is used to make all the different pieces of equipment work together to complete the fuel oil installation. Control systems can take the form of simple motor starters with “Hand-Off-Auto” switches to complex systems, each with PLC and Touch Screen Operator Interfaces using multiple control panels. With the addition of certain hardwired interlock signals, these control panels can communicate with each other using data links. A “Master Panel” is used in some systems to control the entire system and provide a point of contact with a building automation system (BAS).
Control systems come with either relay logic or PLC logic in the basic form. A relay logic framework is used for those applications where the control specifications are very basic. However, the vast majority of devices use a PLC that is pre-programmed in the factory. For great versatility and expandability, these PLC systems allow. They allow contact between this PLC and other devices as well. To make the diagnosis of problems simpler, they provide LED indications of the state of inputs and outputs. It is easy to make improvements to the programme in the field with a computer and the appropriate software.
The control panels can contain the switches and lights used to assist the operator with control functions, but the operator interface to the device uses a color touch screen in many instances. This facilitates tremendous versatility and gives additional knowledge to the operator as well. A red light to signal an alarm, for example, will not tell the operator when the alarm occurred, but the alarms are time stamped on the touch screen so they know when they occurred, what order they occurred, and what alarms were recognized, cleared, or are still active. To support the managers, these touch screens often include the data in a graphical manner.
Control systems make use of contact between control panels of different types. To provide the utmost reliability, this may take the form of dedicated contact closures or analog signals that are hard wired between panels. Many of these, for example, are used as safety interlocks to prevent a tank from overfilling. Other types which involve a data transmission cable that uses protocols of the Internet type (TCP-IP). There are many protocol specifications when it is appropriate to communicate to BAS that we can use to allow the BAS to control the fuel oil system.
