User guide

P/N: 021-00154, Rev. A.6 - updated for V4.7 Tools Page | 83
Note: Regardless of what type of switch is used, the DVC22 will react according to the voltage seen at the input
(above 2.5 volts is a high level and below a low level). Instructions for hooking up a switch to provide the
desired voltage levels can be found in the hardware manual.
Name:
The name used in the bubble logic screen to access this variable and properties.
Range: 16 Characters with no spaces. Usable characters are A-Z, a-z, 0-9, and "_".
Rules:
The first character cannot be a number.
Compiler Keywords or other Names already in use are not valid.
De-bounce Time:
The amount of milliseconds to wait before accepting a change in input states
Range: 0 to 9990ms in 10ms Increments
Polarity:
Polarity has two types of control depending on the state of the software toggle.
When No Toggle and Active High are set, the variable is true when the input is + Voltage.
When No Toggle and Active Low are set, the variable is true when the input is Ground.
When Toggle and Active High are set, the variable changes states on a rising edge.
When Toggle and Active Low are set, the variable changes states on a falling edge.
Range: Active High, and Active Low
Software Toggle:
Toggle reverses the True/False state of a variable. The digital inputs level does not directly set the variables
value; rather, the rising or falling of the digital input will reverse the state of the variable. Software Toggle gives
the programmer more options for controlling an input variable.
When No Toggle and Active High are set, the variable is true when the input is + Voltage.
When No Toggle and Active Low are set, the variable is true when the input is Ground.
When Toggle and Active High are set, the variable changes states on a rising edge.
When Toggle and Active Low are set, the variable changes states on a falling edge.
Range: Toggle, No Toggle
Software Toggle
Toggle No Toggle
Polarity
Active
High
Input changes states when Voltage
goes from Gnd to > 2.5 Volts
Input is True when voltage is > 2.5
volts
Active
Low
Input changes states when Voltage
goes from > 2.5 Volts to Gnd
Input is True when voltage is Gnd
DVC22 Program Variables
DVC22.Status Get the state of the flag.
Range: 0 = Module is Online
2 = Module is Offline
DVC22.Name or Name Get the state of the switch.
Range: False or Off, True or On