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