Reset mode

Determines how current alarms are treated by the system if the value of the event variable changes.

Setting	Description
New value resets old	Any current alarm is reset by a value change of the event variable. This means that only one alarm of the alarm type can be active at a time.
Negative value resets	To reset the alarm, the value of the event variable must become negative. If for example the Value parameter of the assignment is set to 42, that value must at runtime change to -42 for the alarm defined by the assignment to be reset. In this setting multiple alarms can be active at the same time. Each alarm is reset individually.
Zero resets all	A change of the event variable value to 0 resets all current alarms of the alarm type. In this setting multiple alarms can be active at the same time. Alarms are reset all at once

Setting

Description

New value resets old

Any current alarm is reset by a value change of the event variable.

This means that only one alarm of the alarm type can be active at a time.

Negative value resets

To reset the alarm, the value of the event variable must become negative.

If for example the Value parameter of the assignment is set to 42, that value must at runtime change to -42 for the alarm defined by the assignment to be reset.

In this setting multiple alarms can be active at the same time. Each alarm is reset individually.

Zero resets all

A change of the event variable value to 0 resets all current alarms of the alarm type.

In this setting multiple alarms can be active at the same time. Alarms are reset all at once

Parameter for module

Alarms:
Alarm type (numeric)