pnp - npn- sourceing -sinking proxes

Alan B

Member

A

Join Date

Dec 2004

Location

arkansas

Posts

4

• Dec 2, 2004

• #1

Fresh out of school I need some help that my books dont explane very well - can any one tell me what this is and how they are used pnp-npn sourceing - sinking

 

GregPLC

Member

G

Join Date

Oct 2002

Location

Milwaukee, WI

Posts

342

• Dec 2, 2004

• #2

Here it is

As always a lot of great info at this link, here's a great graphic for ya. http://www.patchn.com/npnpnp.htm


Greg

 

guest

Guest

G

• Dec 2, 2004

• #3

NPN prox switches provide a NEG TRUE SIGNAL TO plc INPUT CARD (SOURCE) TYPE

PNP prox switches provide a Pos TRUE SIGNAL TO plc INPUT CARD
(SINK) TYPE