Type:

Function block

Available as of:

V1.0.3.0

Inherits from:

-

Implements:

-

i_xEnable

BOOL

A rising edge FALSE -> TRUE activates the POU, a falling edge TRUE -> FALSE deactivates the POU.

A deactivated POU does not execute any actions.

i_ifTouchProbe

IF_TouchProbe

Measured input by which the registration marks are detected. The input detects the rising edge of the Touchprobe.

i_lrReferencePosition

LREAL

Reference position of the registration marks to be detected in units,

value range >= 0 and <= i_lrReferenceDistance

i_lrReferenceDistance

LREAL

Reference distance of the registration marks to be detected in units,

value range > 0.

Here, the normal registration mark distance is to be set, as this value is used internally for the calculation of q_ lrCorrVelocity and the correction of q_lrPrintMarkPosition.

i_lrWindow

LREAL

Window within which registration marks are accepted.

i_lrReferencePosition +/- i_lrWindow in units, value range > 0

i_lrMaxCorrVel

LREAL

Maximum permitted correction velocity in units/sec, value range > 0.

Excessive values may cause the maximum velocity of the drive to be exceeded.

q_xActive

BOOL

TRUE: The POU is active and has to be executed further.

FALSE: The POU is inactive.

q_xReady

BOOL

TRUE: The POU is ready for TP signals.

FALSE: The POU is not ready.

q_etDiag

GD.ET_Diag

General library-independent statement on the diagnostic.

A value not equal to ET_Diag.Ok corresponds to an diagnostic message.

q_etDiagExt

ET_DiagExt

POU-specific output on the diagnostic.

q_etDiag = ET_Diag.Ok -> Status message

q_etDiag <> ET_Diag.Ok -> Diagnostic message

q_sMsg

STRING[80]

Event-triggered message which gives more detailed information on the diagnostic state.

q_lrPrintMarkPosition

LREAL

Position of a valid registration mark in units.

If i_lrReferencePosition lies at the upper or lower edge of the value range, it is possible that the registration mark originates from the previous or next period.

The POU recognizes this and calculates the correct position.

q_lrPrintMarkDifference

LREAL

Deviation of the detected, valid registration mark from the reference position i_lrReferencePosition in units

q_lrPrintMarkDistance

LREAL

Deviation of the measured distance to the reference distance i_lrReferenceDistance in units.

q_lrCorrVelocity

LREAL

Correction velocity which can be used as offset velocity

This is calculated so the correction is done in a cycle.

q_lrCorrVelocity:= q_lrPrintMarkDifference * iq_lencMaster.Velocity/i_lrReferenceDistance;

q_xNoValidTp

BOOL

TRUE: A detected registration mark is invalid and outside the window i_lrReferencePosition +/- i_lrWindow

The output is set to FALSE as soon a new valid TP signal is detected.

FALSE: A detected registration mark is valid and inside the window i_lrReferencePosition +/- i_lrWindow

q_udiNumberOfTps

UDINT

Number of the recognized registration marks, inside and outside of the i_lrWindow.

In connection with q_xNoValidTp, the application can execute an appropriate evaluation. If the value range is exceeded, the counting recommences at 0.

iq_lencMaster

L_ENC

Logical encoder which is coupled to the master axis.

OK

Disabled

9

The POU is disabled.

OK

Initializing

4

The POU is being initialized.

OK

WaitForTouchProbeSignal

167

Waiting for Touchprobe signal.

InputParameterInvalid

LencInvalid

162

The connected logical encoder is invalid.

InputParameterInvalid

TouchProbeInvalid

163

The connected Touchprobe is invalid.

InputParameterInvalid

TouchProbeNotActive

166

The Touchprobe is not active.

InputParameterInvalid

TouchProbeVirtual

165

The connected Touchprobe is virtual.

SercosConditionInvalid

SercosNotInPhaseFour

19

The Sercos bus is not in phase 4.

UnexpectedProgramBehavior

UnexpectedFeedback

1

An unintended detected error occurred during execution.

UnexpectedProgramBehavior

UnknownState

2

The POU is in an undefined state.

Enumeration name:

Disabled

Enumeration value:

9

Description:

The POU is disabled.

Enumeration name:

Initializing

Enumeration value:

4

Description:

The POU is being initialized.

Enumeration name:

LencInvalid

Enumeration value:

162

Description:

The connected logical encoder is invalid.

-

At the input iq_lencEncoder, no encoder has been applied.

At the input iq_lencEncoder, a separate logical encoder must be transferred.

Enumeration name:

SercosNotInPhaseFour

Enumeration value:

19

Description:

The Sercos bus is not in phase 4.

-

The parameter State of the Sercos bus is not 4.

Set the Sercos bus parameter PhaseSet to 4.

Verify the Sercos bus for errors.

Enumeration name:

TouchProbeInvalid

Enumeration value:

163

Description:

The connected Touchprobe is invalid.

-

The input i_ifTouchProbe is not connected with a valid Touchprobe.

Ensure that a valid Touchprobe has been transferred at the input i_ifTouchProbe.

Enumeration name:

TouchProbeNotActive

Enumeration value:

166

Description:

The Touchprobe is not active.

-

The Touchprobe functionality of the input on a Lexium62 is not enabled.

Ensure that the parameter IOx_Mode of the input group (LXM62IO_InOutTP) has been set to Touchprobe / 1.

Enumeration name:

TouchProbeVirtual

Enumeration value:

165

Description:

The connected Touchprobe is virtual.

-

The used touchprobe is not real.

Ensure that the Touchprobe does not belong to a virtual device. (e.g. virtual Lexium62)

Enumeration name:

UnexpectedFeedback

Enumeration value:

1

Description:

An unintended detected error occurred during execution.

-

An error occurred in the internal execution.

Please inform the support team about this error.

Enumeration name:

UnknownState

Enumeration value:

2

Description:

The POU is in an undefined state.

-

An error occurred in the internal execution.

Please inform the support team about this error.

Enumeration name:

WaitForTouchProbeSignal

Enumeration value:

167

Description:

Waiting for Touchprobe signal.