Locking

The locking system consists of a three-stage system that includes the states Permit, Interlock and Protect.

Permit is a switching release for switching requests. If Permit = FALSE, the object can still be operated. If the object is transferred to a state that corresponds to the safety position, further switching requests are no longer taken into account - the switching release is withdrawn.

Interlock is an interlock that withdraws the switching release and sets the object to the safety position.

Protect has the same functionality as Interlock. Protect does not reset automatically, but must be acknowledged via Reset.

The respective locking options can be activated using Enable variables *En.

Locking 1: Inputs

Name

Type

Description

OPC UA access

PermEn

BOOL

Enable Permit:

1: Enabled

0: Disabled

Read

Permit

BOOL

Permit signal

1: Permit inactive

0: Permit active

Read

IntlEn

BOOL

Enable Interlock:

1: Enabled

0: Disabled

Read

Interlock

BOOL

Interlock signal

1: Interlock inactive

0: Interlock active

Read

ProtEn

BOOL

Enable Protect:

1: Enabled

0: Disabled

Read

Protect

BOOL

Protect signal

1: Protect inactive

0: Protect active, Reset required

Read