Glossary

Activation file

- A hidden, read-only, system file that activates a Rockwell Software product. The software will run only if your system can find the correct activation file.

Activation key -

Activation files contain a database of activation keys. Each key is particular to a certain product and must be accessible on a local or remote drive for that product to run.

Driver -

The software interface to the hardware device that will be used to communicate between RSLinx Classic and your processor.

DDE (Dynamic Data Exchange) -

A form of inter-process communication. When two or more programs that support DDE are running simultaneously, they can exchange information and commands.

License

- Authorization to use a specified number of instances of software. A products activation key contains a license for each copy of the software you have purchased.

Links -

The data path established for one or more channels between two or more stations. DDE links can be hot, warm, or cold.

OPC -

Provides an industry-standard mechanism to communicate and exchange data between clients and servers using OLE technology.

Packet -

The transmission unit exchanged at the network layer.

Poke -

DDE version of a write.

Read -

To acquire data from somewhere (memory, an output, another station).

Topic -

Represents a specific path to a processor.

Write -

To load data into somewhere (memory, an output, another station).