Rockwell Automation 7000 DPI Wireless Interface Module - Manual (Page 85)

Glossary-5
Type 2 events help Allen-Bradley personnel identify the type of
messages that an adapter is using.
W
WIM (Wireless Interface Module)
The WIM provides a wireless communications interface between any
Allen-Bradley DPI drive and a computer or Pocket PC with an RS-232
port. The WIM uses a full-duplex DF1 protocol. The WIM may also be
referred to as “20-WIM-N*,” “DPI peripheral,” or “module.”
Z
Zero Data
When communications are disrupted (for example, a cable is
disconnected), the module and drive can respond with zero data. Zero
data results in the drive receiving zero as values for Logic Command,
Reference, and Datalink data. If the drive was running and using the
Reference from the module, it will stay running but at zero Reference.