You can only configure the Word Device settings for the source if the WORD Value Maps that store the Slave’s data exist on your system.
If the required WORD Value Maps do not exist on your system, you will need to create them (see Configuring Value Maps in the Geo SCADA Expert Guide to Core Configuration).
When your system has the required WORD Value Maps, you can define the Word Device settings. Use the fields in the Word Device section of the Source tab to specify which WORD Value Maps store the Word Device data for this Source.
Use the browse button adjacent to each field to display a Reference browse window and select the required WORD Value Map from the window.
Leave the fields blank for any Map types that are not used by this Source.
Each field and associated Value Map represents a different type of data within a MELSEC A PLC. The entries within the Word Device section of the tab emulate the areas of memory in a MELSEC PLC in which device (point) data is allocated on a per 16-Bit Word basis.
For an example of how you might use a WORD Value Map to represent MELSEC A PLC device data and how you might map that data to a Mitsubishi Slave Source, see Example Configuration.