I have downloaded a file from the Allen-Bradley forum that demonstrates how to use DDE from a PLC into Excel to perform a data logging application. It appears that the DDE communications are performed with a program called RSLINX. Is the the Allen-Bradley equivalent of Omron's CX-Server? How can this data logging application be created using Omron software? Would it be throught the use of the DDE Manager that is supplied with CX-Server? Can DDE Initiate and Execute from Excel to this package be performed? Thanks in advance, Andy.