FB_EncoderPreset_M262: Preset the Encoder

Function Block Description

This function block is used to preset the encoder, in incremental or SSI mode.

Graphical Representation

IL and ST Representation

To see the general representation in IL or ST language, refer to the chapter Function and Function Block Representation.

I/O Variable Description

This table describes the input variables:

Input	Type	Default	Comments
ENC_REF_M262	ENC_REF_M262	–	Reference of the encoder instance.
xEnable	BOOL	FALSE	TRUE enables the encoder preset function, via: oThe preset mode using REF on I0 and Z on the encoder oThe xForce input of the function block
xForce	BOOL	FALSE	On rising edge, presets and starts the counter if xEnable is TRUE.
etREF_Input	ET_ENC_INPUT_M262	ENC_INPUT_REF_I0	Defines the REF input. The only valid value is I0.
etMode	ET_ENC_PRESET_MODE_M262	ENC_PRESET_NO	Selects the conditions to preset the counting function with REF and Z inputs.
diPresetValue	DINT	0	Defines the value loaded in the encoder actual value at preset event.

This table describes the output variables:

Output	Type	Default	Comment
xValid	BOOL	FALSE	TRUE indicates that the output values on the function block are valid.
xError	BOOL	FALSE	TRUE indicates that an error is detected.
etErrorId	ET_ENC_ERROR_M262	ENC_ERROR_NO	Indicates the code of the detected error when xError is TRUE.
xPresetFlag	BOOL	FALSE	Set to TRUE for one cycle by the preset of the encoder.