Merge block connection issue

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nkumar
nkumar 2018-2-4
编辑： Jim Riggs 2018-2-8
Hi I have an issue with merge block. I have two enabled subsystems connected to merge block. I have end time(t=1 to 10) of 10 with step size 1.when t=1 enabled system1 is activated,when t=2,sub system 2 is activated, but when t=3 both subsystems get activated. Can any one tell is it good practice of connecting merge block.

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回答（1 个）

Jim Riggs
Jim Riggs 2018-2-8
编辑：Jim Riggs 2018-2-8
Look at help for the merge block.
Merge is intended for use with conditionally executed blocks where only one of the blocks is enabled.
If both blocks are enabled at the same time, then you must decide how the two signals are combined. Do they add, multiply, concatenate? If the two output signals are concatenated, the output signal changes size. This is not a proper use of the merge block.

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