It is used by electrician (field maintenance engineer) to do the actual wiring of a control panel. 8.5.1 Ladder Diagram Symbols There are a few basic ladder diagram symbols that are used to express the meaning and purpose of a control circuit.
|Title||:||Computer-Aided Process Control|
|Author||:||S. K. Singh|
|Publisher||:||PHI Learning Pvt. Ltd. - 2004-08-01|