What is the meaning for S/S in FX2N PLC connector?

Hi guys,

I'm totally new to Mitsubishi PLC.

1) I've a small project working with Mitsubishi FX2N-32MR PLC. Does anyone knows what is the S/S means or what's the purpose of this in the PLC input connector?

2) Anyone has the wiring diagram for the FX2N-8EYR ext. output module? I try to google in meau website, but no luck...or i just can't find it.

Thank you.

The s/s terminal has to do with the run/stop input. It looks like it needs to be jumpered to 0V to allow run. See page 47 of the "hardware manual" (seventh document from the top of the list).

You can find it from the following link:

http://194.130.244.64/branch/database/service/downloads_show.php?portal_id=1&doc_type=man&slang=2&sstr=FX2N

Jimmie_Ohio said:

The s/s terminal has to do with the run/stop input. It looks like it needs to be jumpered to 0V to allow run. See page 47 of the "hardware manual" (seventh document from the top of the list).

You can find it from the following link:

http://194.130.244.64/branch/database/service/downloads_show.php?portal_id=1&doc_type=man&slang=2&sstr=FX2N

Click to expand...

Jimmie,

Thanks a lot for your info, i'll just jump it to 0V, it's for sink & source selection, right?

The S/S terminal is used to configure the unit inputs for sinking or sourcing signals (all at once).
The inputs themselves are polarity-insensitive and S/S is their common.
When the S/S is connected to the logic ground, the inputs react on sourcing signals (PNP sensors).
When it is connected to the logic power (typically +24VDC) the inputs react on sinking signals (NPN sensors).

Oppps. What else would "S/S" be for. I got confused because page 47 of the manual shows the typical run/stop configurations.

Sorry for any confusion. At least I got the right manual. Sergei knows way more than me.

By the way, that manual should also have contained the expansion module information you needed.

Sergei Troizky : Thx for your explaination, now i understand it Appreciate it.

Jimmie: It's okie, i search for S/S in that manual and it got explain its function further down the page, too.

BTW, anyone could help me with the FX2N-8EYR wiring diagram?