Rockwell Automation Publication 2080-UM004C-EN-E - March 2015 97
Quickstart Appendix B
• If FBEN is True and the user starts the feedback process from previous
Stop state, the function block will not be reinitialized. It will resume count
from previous accumulator value.
• IF FBEN is False, then all outputs are cleared and accumulator is cleared.
When FBEN goes True again , the HSC will be reinitialized.
Configuration for UDFB 2: RA_EncoderFDBK
1. Launch Connected Components Workbench and open the HSC project
you have downloaded from the Sample Code Library.
2. Import the downloaded RA_EncoderFDBK into this project.
Note that the UDFB comes with the following input and output variables.
NOTE: This UDFB will get the positioning information of a motion axis
based on pulses counted from the encoder.
External encoder Differential/
Open Collector type
Encoder
Feedback
Input and Output Parameters
Parameter Type Data
Typ e
Description
FBEN INPUT BOOL Function block Enable input
SlotID INPUT UINT Plug-in slot number.
Slot ID = 1…5 (starting with the far left slot 1)
HomePos INPUT REAL Home position.
Same value indicated in MC_Home instruction.
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