ET200eco Power Supply

Hello

I am a new user of ET200eco blocks and wondering if anyone has an answer to my problem. When I am using a ET200eco 16DI module do I need to connect both 1L+ and 2L+ sides of the 24v power supply? I have read all the documentation and the only examples I see are for a 8DI/8DO unit.

Thanks

Supply voltages of the ET 200eco PN

There are two supply voltages:

● 1L+ Non-switched supply voltage (electronic/sensor/load supply)

● 2L+: Switched supply voltage (load voltage supply)


see the manual chapter 3.3. The drawing should explain what you want to know
http://support.automation.siemens.com/WW/view/en/29999018/0/en

WOLFIE

so if I am using only Input units eg 16DI do I still have to connect both sides 1L+ and 2L+ or is it only necessary to connect the 1L+/1M supply?
Cheers