Rockwell Automation Publication PFLEX-RM003E-EN-E - January 2011 197
Detailed Drive Operation Chapter 1
User Functions
There are several user functions available in the drive for custom control.
• Parameter 1000 [UserFunct Enable] is used to enable or disable user
functions in the drive. The drive does not require a drive reset for a change
to take affect.
– Bit 0 “User Params” - enables use of user DInt and floating point
parameters 1002…1021.
– Bit 1 “Sel Switches” - enables a 16 selection switch, a DInt switch and a
Real switch.
– Bit 2 “Converts” - enables converters for Real to DInt or DInt to Real
data.
– Bit 3 “Logic Functs” - enables blocks that can be configured as (AND,
NAND, OR, NOR, XOR, or NXOR) and enables the compare
functions.
– Bit 4 “MulDiv Math” - enables multiply/divide functions.
– Bit 5 “Add Sub” - enables addition/subtraction functions.
– Bit 6 “Delay Timer” - enables the On/Off delay timers function.
– Bit 7 “EGR” - enables the Electronic Gear Ratio (EGR) function.
– Bit 17 “MOP” - enables the MOP (motor operated potentiometer).
• Parameter 1001 [UserFunct Actual] will show the actual user functions
enabled.
Bit Swap
The bit swap function allows you to compare word A with word B and replace
the selected bit from word A with the selected bit of word B.
Example of Using a Bit Swap and Digital Input for Custom Control
This example uses a bit swap to enable and disable the S-curve using digital input
3.
• Set parameter 860 [BitSwap 1A Data] to 0. This parameter sets up any
data you would like to pass through to the result.
Bit
Swap
864
860
861
862
863
BitSwap 1A Data
BitSwap 1A Bit
BitSwap 1B Data
BitSwap 1B Bit
BitSwap 1 Result
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