Step 5: Connect variables to FB in-/output variables

Local defined variables will be connected to the necessary and interesting in-/outputs of the PLCopen FBs. These local variables can be forced while the PLC application is running. Default values of the local variables are listed in the table below.

Table 3-5: Local variables to connect to in-/outputs of the PLCopen-FBs

Variable

Data type

Default value

Instanz MC_Power_1

 

 

EnablePower

BOOL

FALSE

EnablePositive

BOOL

FALSE

EnableNegative

BOOL

FALSE

Instanz MC_ReadActualPosition_1

 

 

EnableReadActPos

BOOL

TRUE

Position

REAL

 

Instanz MC_MoveRelative_1

 

 

Distance

REAL

100000.0

Velocity

REAL

10000.0

Acceleration

REAL

2000.0

Deceleration

REAL

2000.0

Jerk

REAL

2000.0

Done

BOOL

 

Now the local variables are defined in variables definition area and some of them are initialized with a default value. Within the CFC editor the variables connected to the FBs in-/output pins are recognizable:

Step 5: Connect variables to FB in-/output variables 1:
Figure 3- 22 : In-/output variables connected to PLCopen-FBs