Level Switch

A level switch provides a discrete input to the PLC.  The level switch is typically used as a method of control in tanks and vessels. 

• Abbreviated as LS

Types of Level Switches

• Float Switches
• Vibration Switches
• Electromechanical Switch
• Solid-state Switch

Configuration and Alarms

Configuration (Normal State):

• NO - Normally Open
• NC - Normally Closed

Alarms in the PLC can be:

• LSH - Level Switch High
• LSL - Level Switch Low
• LSHH - Level Switch High High
• LSLL - Level Switch Low Low