What Is the Value of an Undefined Digital Output in Functional Safety Editor ?

Updated Nov 26, 2019

Reported In


  • NI-9350


  • Functional Safety Editor 2018

Issue Details

I have two states in the Functional Safety Editor. The first state definesĀ DO0=True and DO1=True, but the second state only definesĀ DO1=True. What will be the value of DO0 at the second state? Will it retain the value from the previous state?

Figure 1


If output values are not defined by the current state, the default value for that output will be applied. You can check the default value that you have set in I/O configuration. For this example, the DO0 at State_2 will be False, as seen in Figure 1 above.