Rockwell Automation 1404-M4_M5_M6_M8 Powermonitor 3000 User Manual, PRIOR to Firmware rev. 3.0 - Manual (Page 266)

Publication 1404-UM001D-EN-E - October 2004
C-12 Sample Applications
The communications tab of the message setup simply shows the
module name in the I/O configuration for this example.
The Write message dialog is similar to the Read:
Note that the source length is in Bytes, not elements. Since this
message write 8 INT elements, the message length is 16 bytes.
RSLinx DDE/OPC and Microsoft Excel
You may create a simple data transfer application using RSLinx direct
data exchange (DDE) capabilities and a DDE client such as Microsoft
Excel
TM
. This example uses DDE to read and write the value of the