Posted 8 Jan 2013 Hello, From looking in the 1400 manual (BXB model), it says it has 3 fast outputs available, but it doesn't state which ones are the fast ones. I have searched through the other manuals but can't find this information. Could someone please advise which ones they are. Thanks in advance. CJD Share this post Link to post Share on other sites
Posted 8 Jan 2013 That's a great question ! The "fast outputs" are Outputs 2, 3, and 4. What makes them "fast" is that they're connected to the special pulse-generation circuitry that is configured by the Pulse Train Output and Pulse Width Modulation instructions. These are described in Chapter 6 of the MicroLogix 1400 Reference Manuall (1766-RM001), which is a more detailed book than the User Manual (1766-UM001). Share this post Link to post Share on other sites