MLCamInit

Pipe Network motion icon

 Function - Initializes a CAM Pipe Block for use in a PLC Program.

Inputs

Input

Data Type

Range

Unit

Default

Description

BlockID

DINT

1 to 1024

N/A

No default

ID number of a created Pipe Block.

ProfileName

STRING

No range

N/A

No default
  • Name of the current profile assigned to the cam.
  • It must be a declared profile object.

ModuloPosition

LREAL

0 to 1.0x10300

User units

No default
  • Value of the period of the cam output values expressed in User units.
  • This is for a cyclic system.
  • 0 (zero) indicates the output signal does not use the modulo operation.

Outputs

Output

Data Type

Range

Unit

Description

Default (.Q)

BOOL

FALSE, TRUE

N/A

Remarks

This function is automatically called if a CAM Block is added to the Pipe Network, with user-defined settings then entered in the Pipe Blocks Properties screen.

  • The CAM Pipe Block is used to generate motion profiles of any shape.
    • These profiles are created and initiated separately and the shape is modified with the CAM Editor.
    • With the Editor profiles can be changed graphically or by manually changing values in a numeric table relating input and output values with specific slopes.
    • The CAM Editor software tool provides the capability to visualize, analyze, edit, and smooth profiles.

With the Pipe Network (PN) CAM block:

  • The CAM block’s profile is in reference to the input positions coming into the PN CAM block (Master Absolute)
  • The PN CAM block output positions are in reference to PN CAM block’s output position at the end of the last CAM cycle (Slave Relative).
  • Profile switching can be done on the fly, without losing synchronization and without dead time.
    • In addition, the offsets and ratios of CAM Profiles can be changed on the fly.
    • See CAM Profile Switching for more information.

    • CAM objects are normally created in the Pipe Network using the graphical engine.
    • You do not have to add MLCamInit function blocks to their programs.
    • Parameters are entered directly in pop-up windows and the code is automatically added to the current project.

FBD Language Example

FFLD Language Example

IL Language Example

Not available.

ST Language Example

//Initialize  a Pipe Network block named “CAM” with a profile named “Profile_A”, set the cam modulo position to 360
CAM := MLBlkCreate( 'CAM', 'CAM' );
MLCamInit( CAM, 'Profile_A', 360.0 );

See Also