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MLProfileRelease

An application program is limited to 256 Profile ID’s. This FB releases an existing profile ID definition so that the profile ID can be used for a different/new Profile (minimizing the risk of reaching 256 Profile ID’s). Once the existing Profile ID definition has been successfully released, the Profile ID can then be used by either MLProfileInit or MLProfileBuild to create a new Profile.

The Profile ID selected by the input parameter must not be in-use by a motion engine. In-use is defined as:

For Pipe Network – it must not be currently selected for use by an active CAM block in an active pipe. Pipe has been activated by MLCamSwitch.
For PLCOpen – selected for use by MC_CamIn and has an active move.

There are a number of ways to change an in-use profile to one that is not in-use (deactived):

For Pipe Network – Perform a MLCamSwitch on an active Pipe to a different Profile or deactivate the pipe.
For PLCOpen – whenever the active profile move is halted or aborted, the profile is no longer in use. MC_CamOut is one way of aborting the profile move. Actually, any PLCopenA vendor -and product- independent worldwide association active in Industrial Control and aiming at standardizing PLC file formats based on XML motion command that aborts a profile move will also deactivate a profile.

Any profile ID created by MC_CamTblSelect from the specified ProfileID will be destroyed and need to be recreated upon completion of this FB. This means that all derived profile ID’s created by MC_CamTblSelect FB must also not be in use by the PLCopen motion engine in order for this function to succeed.

Loading a Profile Editor-generated profile into a ProfileID released by MLProfileRelease should be done with care. The MLProfileInit () function call can take in excess of 4 milliseconds to execute. Application execution is suspended during this time until the function call is completed.

Arguments

For more information on how Arguments work, refer to PLCopen Function Blocks - General Rules.

Input

EnableEnable signal for the drive, Hardware-Enable with 24V signal to X8, Software-Enable command by setup Software, fieldbus or permanently set. Both are required for enabling the drive.	Description	Enable execution of the function block. Successful completion will result in a profile ID that is no longer assigned to a specific profile and can be reused for a different/new Profile. Prior to reusing this Profile ID it will need to be re-initialized by either an MLProfileInit Function call or by calling MLProfileBuild.
	Data Type	BOOL
	Range	0, 1
	Unit
	Default	0
ProfileID	Description	Specify a Profile ID that has been created by MLProfileCreate. This is the profile ID that will be released so it can be reused for different/new Profiles. This Profile ID must not be in use by a motion engine.
	Data Type	DINT
	Range	1 to 256
	Unit
	Default	0

Output

Done	Description	If high, Successful completion. The Profile can now be reused.
	Data Type	BOOL
	Range	0, 1
Err	Description	If high, the Function Block did not complete successfully. Reason is given in Error ID.
	Data Type	BOOL
	Range	0, 1
ErrorID	Description	Indicates the reason for the failure. See Error Codes table for possible reasons.
	Data Type	INT
	Range

Error Codes

ErrorID	Description
106	Invalid profile ID. Profile ID: does not exist has not been created yet profile ID is not a profile
108	Profile cannot be released because it is in use by the motion engine or currently selected by an active CAM block.

ErrorID

Description

106

Invalid profile ID. Profile ID:

does not exist
has not been created yet
profile ID is not a profile

108

Profile cannot be released because it is in use by the motion engine or currently selected by an active CAM block.

Related Functions

Example

Structured Text

//Release a Cam Profile
Inst_MLProfileRelease( Profile_A , 'Profile_A.5op');

If Inst_MLProfileRelease.Done THEN
   // Do Something
ELSIF Inst_MLProfileRelease.Err THEN
   // Handle Error
END_IF;

Ladder Diagram

Function Block Diagram

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