2014-02-22 10:27 GMT+01:00 Marius Liebenberg <mar...@mastercut.co.za>:
> You want to use NPN NC switches. This means that the circuit is > energized when in normal condition. If the switch is made the circuit > will open or if the power fails or if the wire breaks, the circuit will > be open and hence you will detect the condition on the input. > Oh and make sure it is the 3 wire type. The two wire type does not work > well for our applications. > I use the 12mm three wire type. > Just what I needed to now, thank you! ------------------------------------------------------------------------------ Managing the Performance of Cloud-Based Applications Take advantage of what the Cloud has to offer - Avoid Common Pitfalls. Read the Whitepaper. http://pubads.g.doubleclick.net/gampad/clk?id=121054471&iu=/4140/ostg.clktrk _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users