Why is this arithmetic combinator not working?

Why is this arithmetic combinator not working? - Multicolored Abacus Photography

I set up an arithmetic combinator exactly as in this video at 6:47. In the video, the combinator outputs the yellow with summed values. In my Factorio pictures, there is no yellow output.

I'm using Factorio version 1.1.19.

How do I get the arithmetic combinator (or other signal network pieces) to sum its inputs and output a single number? (What I actually want is to sum all the items on a belt, and activate an inserter if that sum is greater than some number.)

arithmetic combinator

output signal






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How do you use arithmetic combinator?

It constantly outputs the selected signal(s) to all connected wire networks without the need for a specific input, and can be turned on/off in the GUI manually.



Introduction to CIRCUIT NETWORKS | Factorio Tutorial/Guide/How-to




Sources: Stack Exchange - This article follows the attribution requirements of Stack Exchange and is licensed under CC BY-SA 3.0.

Images: Skitterphoto, Yan Krukov, EKATERINA BOLOVTSOVA, Karolina Grabowska