Rockwell Automation 25-COMM-P PowerFlex PROFIBUS DPV1 Adapter - Manual (Page 86)

86 Rockwell Automation Publication 520COM-UM004A-EN-E - November 2013
Glossary
Data Rate The speed at which data is transferred on the PROFIBUS network. The available
data rates depend on the type of cable and total cable length used on the network.
Datalinks A Datalink is a type of pointer used by PowerFlex 520-series drives to transfer
data to and from the controller. Datalinks allow specified parameter value(s) to
be accessed or changed. When enabled, each 16-bit Datalink in a PowerFlex 520-
series drive consumes 2 bytes in the input image table and/or 2 bytes in the
output image table of the controller.
Fault Action A fault action determines how the adapter and connected drive act when a
communications fault (for example, a cable is disconnected) occurs or when the
controller is switched out of run mode. The former uses a communications fault
action, and the latter uses an idle fault action.
Fault Configuration When communications are disrupted (for example, a cable is disconnected), the
adapter and its PowerFlex 520-series drive can respond with a user-defined fault
configuration. The user sets the data that is sent to the drive using specific fault
configuration parameters in the adapter. When a fault action parameter is set to
use the fault configuration data and a fault occurs, the data from these parameters
is sent as the Logic Command, Reference, and/or Datalink(s).
GSD (Generic Station Description)
File
A device database text file used by the network configuration tool to identify a
PROFIBUS module and its capabilities. The file is normally registered in the
PROFIBUS configuration tool for a device, and is supplied with the device via
removable media or on the internet as a download.
HIM (Human Interface Module) A device that can be used to configure and control a drive. The PowerFlex 22-
HIM-A3 or 22-HIM-C2S HIM can be used to configure PowerFlex 520-series
drives and their connected peripherals.
Hold Last When communication is disrupted (for example, a cable is disconnected), the
adapter and its PowerFlex 520-series drive can respond by holding last. Hold last
results in the drive receiving the last data received through the network
connection before the disruption. If the drive was running and using the
Reference from the adapter, it will continue to run at the same Reference.
Idle Action An idle action determines how the adapter and its PowerFlex 520-series drive act
when the controller is switched out of run mode.
Data Rate Maximum Cable Length Data Rate Maximum Cable Length
9.6 K 1000 m (3,280 ft) 500 K 400 m (1,312 ft)
19.2 K 1000 m (3,280 ft) 1.5 M 200 m (656 ft)
45.45 K 1000 m (3,280 ft) 3 M 100 m (328 ft)
93.75 K 1000 m (3,280 ft) 6 M 100 m (328 ft)
187.5 K 1000 m (3,280 ft) 12 M 100 m (328 ft)