AB PLC5/SLC500/Micro-Logix DF1 TOP Server (OPC, FastDDE,SuiteLink,AdvancedDDE) This item is no longer available for online ordering. See below for details on alternate products or products that may have superceded this item. Product Summary This item is now part of the TOP Server AB Communications Suite -- same driver, same low price, but 3 drivers for the price of one! This item has been made part of the TOP Server AB Communications Suite offering you more value than ever before with 3 drivers bundled into one offering. AB PLC5/SLC500/Micro-Logix DF1 TOP Server (OPC, FastDDE,SuiteLink,AdvancedDDE) This item is no longer available for online ordering. See above for details on alternate products or products that may have superceded this item.