To find your ISA ID (PSN ID):

1. Go the (L6X) PSN Parameter Screen. In graphical software:
• Double-click the Keyop Menu icon
• Double-click the Parameters icon
• Select Vendor & Wholesale Communications by typing the number 6
• Select OPDX by tying the the letter X
2. The PSN Parameter Screen appears. The ISA ID (PSN ID) is the second PSN Parameter, as shown below.