1769-HSC module

Greetings everyone,

I'm looking at the wiring diagram for the 1769-HSC module, and I don't see how one would wire 4 discrete inputs to it. I can see 3 inputs in the diagram attached, wired between A1+/A1-, B1+/B1-, and Z1+/Z1-. Where does one wire the 4th input?


TIA,

Greg

I see I hosed up the file attachment...I'm looking in the AB Installation Instructions publication 1769-IN030A-EN-P, on page 16.

Greg

Here's the page:

Got it...

This is how 4 counters are wired :

http://rockwellautomation.custhelp.com/cgi-bin/rockwellautomation.cfg/php/enduser/std_adp.php?p_faqid=27834