MC_CamTblSelect

PLCopen motion icon

Function Block A function block groups an algorithm and a set of private data. It has inputs and outputs. - Defined to read and initialize the specified profile.
Selects the Cam tables by setting the pointers to the relevant tables.

Inputs

Input	Data Type	Range	Unit	Default	Description
Execute	BOOL	0, 1	N/A	No default	Requests to queue the slave gear ratio move.
CamTable	STRING	No range	N/A	No default	Profile name as defined in the CAM Profile The position of a slave axis is mathematically linked to the position of a master axis. Example: A system where two rotating drums turn at a given ratio to each other. A more advanced case of electronic gearing is electronic camming. With electronic camming, a slave axis follows a profile that is a function of the master position. This profile need not be linear but it must be a mathematical function. Properties dialog.
Periodic Motor systems having a reciprocating or oscillating motor that operates synchronously with the periodicity of the source which supplies the electrical energy. The period of execution of a pipe is the time spent between two successive computations of set values for the same pipe. The period of execution of a pipe is specified by the PERIOD parameter of the input pipe block.	BOOL	0, 1	N/A	No default	Selects if the profile is periodic. See the Usage for more information.
MasterAbsolute	BOOL	0, 1	N/A	No default	Selects if master profile is absolute or relative. See the Usage for more information.
SlaveAbsolute	BOOL	0, 1	N/A	No default	Selects if slave profile is absolute or relative. See the Usage for more information.

Outputs

Output	Data Type	Range	Unit	Description
Done	BOOL	0, 1	N/A	Indicates whether this function A function calculates a result according to the current value of its inputs. A function has no internal data and is not linked to declared instances. block has completed without error.
Busy	BOOL	0, 1	N/A	Indicates this function block is executing.
Error	BOOL	0, 1	N/A	Indicates an invalid input was specified.
ErrorID	INT	No range	N/A	Indicates the error if the Error output is high. See PLCopen Function Block ErrorIDs.
CamTableID	INT	0, 255	N/A	Indicates the ID number of the profile to be used with MC_CamIn.

Remarks

See Function Blocks - General Rules about how inputs and outputs work.
Returns an ID to be used with MC_CamIn.
See Main for information about how this function block is used in the Hole punch project.

Usage

Each positive Position means a point in space which is described by different coordinates. Depending on the used system and transformation it can consist of a maximum of six dimensions (coordinates).This means three Cartesian coordinates in space and coordinates for the orientation. In ACS there can be even more than six coordinates. If the same position is described in different coordinate systems the values of the coordinates are different. transition of the Enable Enable 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. input creates a unique Cam ID and store the profile information in a table.
- The number of unique Cam IDs is limited to 256.
- If the application attempts to create more than 256 Cam IDs:
  - The Error output is TRUE.
  - The ErrorID output is 22 (Too Many Profiles).
- It is only necessary to call MC_CamTblSelect once for each Profile/Periodic/MasterAbsolute/SlaveAbsolute configuration to be used.
The Periodic input selects if the profile is to repeat each cycle.
- If the profile is not periodic and the master axis moves beyond the profile range, the slave stops at the end of the profile.
If the master axis moves back into the profile range, the slave resumes following the profile.
If the MasterAbsolute input is ON, the profile is in reference to the Master axis position.
- If the MasterAbsolute input is OFF, the profile is in reference to the Master axis position at the time the MC_CamIn function block is executed.
The SlaveAbsolute input selects if the slave positions are in reference to the Slave axis position or the Slave axis position at the time the MC_CamIn function block is executed.
- If the SlaveAbsolute input is set to TRUE, the axis jumps back to the starting position.
- If the SlaveAbsolute input is set to FALSE, the axis no longer jumps back.
  - Instead, as the profile repeats, the slave moves relative to the start of each period.

FBD Language Example

Not available.

FFLD Language Example

IL Language Example

Not available.

ST Language Example

(* MC_CamTblSelect ST example *) //call this function block every scan until "Done"
Inst_MC_CamTblSelect(DoSelect, 'Profileb', TRUE, TRUE, TRUE ); //Inst_MC_CamTblSelect is instance of MC_CamTblSelect
CamSelDone := Inst_MC_CamTblSelect.Done;  //store Done output to user defined variable
IF CamSelDone = TRUE THEN//when function block is "done" store
CamTableID := Inst_MC_CamTblSelect.CamTableID;  //CamTableID in user defined variable
END_IF;