Difference between Alarm and Events in SCADA.

Basically there are three main differences in Alarm and Event in SCADA system.

Alarm :-

• It is a type of notification to inform operator about process activity & alarm represent warning of process condition that could cause problem in a system.Alarm shows notification for critical condition in a process.

• It require operator response as it is concerned with notification of fault in a system.

• A typical alarm is triggered when a process value exceeds a user defined limit or set point, such as analog value exceeding higher limit.

Events :-

• It is also a kind of notification to inform operator about process activity but it represents normal system condition.

• It does not require operator response as it is concerned with normal operating condition of system.

• A typical event is triggered when a certain system condition is happened, such as operator logging into intouch system.

so these are some basic differences in Events and Alarm in Intouch Wonderware SCADA software.