MC_InitAxisFeedback

 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. - initializes a PLCopen A vendor -and product- independent worldwide association active in Industrial Control and aiming at standardizing PLC file formats based on XML Digitizing Axis position data.

A call to this function is automatically generated when the application is compiled, based on the data entered in the PLCopen Axis Data dialog.

Figure 7-122: MC_InitAxisFeedback

Arguments

See Function Blocks - General Rules for more information about how inputs and outputs work.

Input

En	Description	Request to Initialize a PLCopen Digitizing Axis. This input is only applicable to FFLD programs.
	Data type	BOOL
	Range	0,1
	Unit	N/A
	Default	-
AxisNumber	Description	Digitizing Axis Number
	Data type	UINT
	Range	[1,256]
	Unit	none
	Default	-
FeedbackPDOIndex	Description	The object Index through which the feedback data is sent.
	Data type	UINT
	Range	[0,65536]
	Unit	N/A
	Default	-
FeedbackPDOSubIndex	Description	The sub index of the object through which the feedback data is sent to controller.
	Data type	UINT
	Range	[0,255]
	Unit
	Default
FeedbackDataResolution	Description	The resolution of the Encoder
	Data type	UINT
	Range	[1,32]
	Unit	N/A
	Default	-

Output

OK	Description	Indicates the initialization is complete. This output is only applicable to FFLD programs. See Function - General Rules for more information.
	Data type	BOOL
ErrorID	Description	Indicates if the call failed or succeeded. If the call succeeds, will be set to 0.
	Data type	DINT

Example

Structured Text

(* MC_InitAxisFeedback ST "Structured text"
A high-level language that is block structured and syntactically resembles Pascal example *)
// Initialize the digitizing Axis (Axis #3) with the Feedback object 0x60E4 subIndex 2.
Encoder resolution is 25bits.
ErrID := MC_InitAxisFeedback(3, 16#60E4, 16#02, 25);

FBD Example