HaModTof (FB)

FUNCTION_BLOCK HaModTof

Function block HaModTof is a standard Off delay timer with automatic data synchronization in a high availability system Only internal variables and outputs are synchronized. Input variables and parameters are not synchronized. If needed, use HaModDataSync to achieve the same.

Note

It is not recommended to call utility blocks inside other function blocks in user application, this can impact the data synchronization between PLCs. For example, if HaModTon function block is used inside user’s function block, it will lead to data sync mismatch.

InOut:

Scope

Name

Type

Initial

Comment

Input

In

BOOL

FALSE

1:Starts timer with falling edge, resets timer with rising edge

Pt

TIME

TIME#0ms

2:Time to pass, before Q is set

Output

Q

BOOL

FALSE

1:Is FALSE, Pt seconds after In had a falling edge

Et

TIME

TIME#0ms

2:Elapsed time