Parameter Descriptions                             www.emersonct.com                                       103
the Unidrive SP slots.
The X in “SlotX” defines the slot number that the 
SM-Universal Encoder Plus option module has been fitted 
in. For example, if the Universal Encoder Plus module is in 
slot 2, the parameter would be named: 
Slot2.EncoderSimulationSource.
The SM-Universal Encoder Plus is capable of sending out 
a simulated encoder signal. To configure the simulated 
encoder signal, the user specifies a source parameter and 
a ratio multiplier. The multiplier allows the user to scale the 
source parameter before it is sent out the “Encoder Out” 
port. The multiplier is made up of a numerator parameter 
and a denominator parameter. The formula for the value 
sent out the encoder output is as follows:
Output = Enc. Sim. Source * (Enc. Sim. Numerator / Enc. 
Sim. Denominator)
The range for the source parameter is 00.00 to 21.51. This 
parameter is found on the SlotX view after a SM-Universal 
Encoder Plus module has been selected for the Module 
Type. For more information on this parameter, please refer 
to the SM-Universal Encoder Plus User Guide (parameter 
x.24).
SlotX Encoder Supply Voltage
SlotX.EncoderSupplyVoltage
This parameter is only available when an SM-Universal 
Encoder Plus option module has been populated in one of 
the Unidrive SP slots.
The X in “SlotX” defines the slot number that the 
SM-Universal Encoder Plus module has been fitted in. For 
example, if the Universal Encoder Plus module is in slot 2, 
the parameter would be named: 
Slot2.EncoderSupplyVoltage.
The Unidrive SP supports multiple voltage levels for 
external encoders. Select from 5V, 8V, or 15V.
This parameter is found on the SlotX view after a 
SM-Universal Encoder Plus module has been selected for 
the Module Type. This parameter is read-only from within 
a user program. For more information on this parameter, 
please refer to the SM-Universal Encoder Plus user guide 
(parameter x.13).
SlotX Encoder Type
SlotX.EncoderType
This parameter is only available when an SM-Universal 
Encoder Plus option module has been populated in one of 
the Unidrive SP slots.
The X in “SlotX” defines the slot number that the 
SM-Universal Encoder Plus module has been fitted in. For 
example, if the Universal Encoder Plus module is in slot 2, 
the parameter would be named Slot2.EncoderType.
The SM-EZMotion module only supports use of 
Quadrature Incremental Encoders in early releases (even 
though the Unidrive SP is capable of handling other 
encoder types).
This parameter is found on the SlotX view after a 
SM-Universal Encoder Plus module has been selected for 
the Module Type. This parameter is read-only from within 
a user program. For more information on this parameter, 
please refer to the SM-Universal Encoder Plus User Guide 
(parameter x.15).
SlotX Input Status
SlotX.Input.#.In
This parameter is only available when an SM-I/O Plus 
Option module has been populated in one of the Unidrive 
SP slots.
The X in “SlotX” defines the slot number that the SM-I/O 
Plus module has been fitted in. For example, if the I/O Plus 
module is in slot 2, the parameter would be named 
Slot2.Input.#.In.
The last three digital I/O points on the SM-I/O Plus module 
are defined as digital inputs only (pins 6, 7, and 8). The “.In” 
at the end of the parameter is optional, so this signal is 
most often referred to simply as SlotX.Input.#. These 
inputs can be used in a user program, or on the 
Assignments view to activate different destination events.
These inputs are updated at the Trajectory Update Rate 
found on the Setup view in PowerTools Pro EZ.
SlotX Input Name
SlotX.Input.#.Name
This parameter is only available when an SM-I/O Plus 
Option module has been populated in one of the Unidrive 
SP slots.
The X in “SlotX” defines the slot number that the SM-I/O 
Plus module has been fitted in. For example, if the I/O Plus 
module is in slot 2, the parameter would be named 
Slot2.Input.#.Name.
Each digital input on the SM-I/O Plus module can be given 
a name. The name can be used in a user program to 
reference a specific input. The name can be up to 12 
alphanumeric characters, but must begin with a 
non-numeric character.
SlotX IO Direction
SlotX.IO.#.Direction
This parameter is only available when an SM-I/O Plus 
Option module has been populated in one of the Unidrive 
SP slots.
The X in “SlotX” defines the slot number that the SM-I/O 
Plus module has been fitted in. For example, if the I/O Plus 
module is in slot 2, the parameter would be named 
Slot2.IO.#.Direction.
The first three digital I/O points on the SM-I/O Plus module