I'm sure many of you remember AB's DH+ communications. I have a system that is variable or configurable. I have a customer that paints large parts automatically. The coating process dictates what type of auxiliary equipment is required. I wrote a program years ago that would determine what subroutines to run depending on what DH+ stations that reported in when the processor was powered up. The program new by what was attached the type of system it was and controlled that particular process. Thank goodness DH+ is for the most part in the past.
This same customer wants to upgrade many of the PLC-5's running this code to a ControlLogix. I'm struggling how to create the same type of setup of determining what equipment is attached be looking for the IP address. Has anyone done this or have ideas on how to find a known IP address on a network? The IP addresses are all fixed.
