SMC_FreeEncoder (FB)¶
FUNCTION_BLOCK SMC_FreeEncoder
the need to add it to the device tree.
Use the output variable
Encoder
of type FREE_ENCODER_REF as the encoder
axis.
If the function block is restarted, the free encoder is reinitialized.
Note that instances of this function block must not be assigned to other instances of the same function block. If you create your own function block containing this function block, it is recommended to add the attribute ‘no_assign’ to your function block as well.
- InOut:
Scope
Name
Type
Initial
Comment
Input
Execute
BOOL
Starts the execution of the function block.
diEncoderPosition
DINT
The encoder position in increments.
bDelayActivation
BOOL
During startup, communication state 90 will not be reached as long as this value is TRUE.
wDriveID
WORD
1
Identifier of the drive.
iMovementType
SMC_AXIS_TYPE.modulo
The type (finite or modulo) of axis.
fPositionPeriod
LREAL
360.0
Length of period for modulo drives in technical units [u].
dwRatioTechUnitsDenom
DWORD
16#10000
The number of encoder increments per iRatioTechUnitsNum.
iRatioTechUnitsNum
DINT
360
The number of technical units [u] per dwRatioTechUnitsDenom.
usiEncoderBitWidth
USINT
32
The bit width of the encoder signal.
Output
Initialized
BOOL
The encoder axis is intialized and can be used.
Error
BOOL
There is an error.
Encoder
The encoder axis.