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Can we join two expansion cables together between BMXXBE1000 modules

Published date: 13 September 2019

Customer needs to add an extension rack to an M340 installation using BMXXBE1000 modules. The distance between racks is around 15metres.
He wants to know if he can join two expansion cables together (e.g. BMXXBC120K & BMXXBC030K) with a standard DB9 joiner (female-female)?
Product Line:
M340, M580, BMXXBE1000

EcoStruxure Control Expert
Unity Pro

Yes, this should work, as long as the cumulative length of all the cables used in a PLC station is less than or equal to 30 m.

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