Using the first value of a variable during simulation in Simulink

This block generates output only once during simulation (at the beginning of the simulation). And I want to use the output obtained initially throughout the simulation. I tried to use Unit Delay, but I think I have to add something. Could you help?

Answer 1

[Fangjun Jiang]

If the triggered subsystem is truly ran only once, then you don't need to do anything. The output value of this block is "held". Just try it.