Test Manager - Trigger response assessment with variable time
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Nicolas Broch on 12 Apr 2021
I am in the learning phase with Simulink Test and I am working with the Test Manager. I am trying to do something which I cannot find in the documentation. I want to do a trigger-response assessment with variable time. I would like to do a rule similar to the following:
At any point of time, if A == 1 becomes true, then, with no delay, B == 1 must stay true for at least Time_min
My goal is that Time_min is defined when a trigger occurs (as described in the picture below). But unfortunately, if I use a signal as timing value, I get the error "Mapping for symbol 'Tmin' is not a valid time: expected a non-negative scalar numeric value." when I execute my test. Has anyone an idea how I could reach my goal?
Thank you for your help.
Arthi Sathyamurthi on 27 May 2021
Since T_min gets defined only when a trigger occurs the possibility that during first trigger, T_min is unassigned properly and gets defined as 0 or a negative value. So when you try to generate a signal that needs to be constant for that particular time T_min you get the error stated. Hence try to initialize the value of T_min before using it in the block.