Powerbars

I have 2 STDL4-4 & 1 powerbar 5.1

The 5.1 is connected thru PAB, 1 of the 4-4 is connected thru s1/s2 (s3/s7 is used for my 3 dosing pumps).
Now how do I connect the second 4-4?

Can I connect it thru the dosing pump, can i use a splitter on the S1/S2, do I need to buy the expansion socket or can I connect it with my expansion box 2?

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Now how do I connect the second 4-4?

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This is only possible by adding S-ports via card or expansion box

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Can I connect it thru the dosing pump,

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No.

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can i use a splitter on the S1/S2,

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No.

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do I need to buy the expansion socket

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A PLM-2L4S would help
https://store.aquariumcomputer.com/e...lm-2l4s-detail

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or can I connect it with my expansion box 2?

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If there is a free S-Port: Yes

Ok, got the 3 powerbars working :):cool: Thanks
5.1 @ PAB, first 4-4 to port s5-s8 and second 4-4 on an extra s-port

Now I'm trying to work out the configuration of the dosing pumps.
They are connected to each other and then the last one to the S1-S4 port.
Now if I let the s1 run, all the first pumps of the 3 pumps start working. Can I assign other numbers to the other pumps or do I need to connect them all to a different s-port?

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Can I assign other numbers to the other pumps or do I need to connect them all to a different s-port?

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Set the numbers with GCC by connecting and programming one after another to the port S1S4. It´s mandatory to set this port to digital (checkbox) for that