Rockwell Automation MD65 Profibus Communication Card - Manual (Page 102)

Glossary-4 PROFIBUS Communications Module
scanner - A separate module (of a multi-module controller) or a
built-in component (of a single-module controller) that provides
communication with modules connected to a network. Also called a
master. See also controller.
status indicators - LEDs that are used to report the status of the
module, network, and drive. They are on the module and can be
viewed on the front cover of the drive when the drive is powered.
VS Utilities software - A software tool for monitoring and
configuring Reliance Electric products and modules. VS Utilities can
be used to configure the PROFIBUS module and SP600 drives.
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
command data. If the drive was running and using the reference
from the module, it will stay running but at zero reference.