Rockwell Automation 20-750-CNETC PowerFlex Coaxial ControlNet Option Module User Manual
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Rockwell Automation Publication 750COM-UM003B-EN-P - November 2012
Glossary
Ping
A message that is sent on the network to determine if a node exists.
PowerFlex 750-Series (Architecture
Class) Drives
Allen-Bradley PowerFlex 750-Series drives are part of the PowerFlex 7-Class
family of drives.
Producer/Consumer Network
On producer/consumer networks, packets are identified by content rather than
an explicit destination. If a node needs the packet, it will accept the identifier and
consume the packet. The source therefore sends a packet once and all the nodes
consume the same packet if they need it. Data is produced once, regardless of the
number of consumers. Also, better synchronization than Master-Slave networks
is possible because data arrives at each node at the same time
Reference/Feedback
The Reference is used to send a setpoint (for example, speed, frequency, and
torque) to the drive. It consists of one 32-bit word of output to the option
module from the network.
Feedback is used to monitor the speed of the drive. It consists of one 32-bit word
of input from the option module to the network.
RSLogix 5000 Software
RSLogix 5000 software is a tool for configuring and monitoring controllers to
communicate with connected devices. It is a 32-bit application that runs on
various Windows operating systems. Information about RSLogix software can be
found at
. See also Studio 5000
environment.
RSNetWorx for ControlNet
Software
A software tool for configuring and monitoring ControlNet networks and
connected devices. It is a 32-bit application that runs on various Windows
operating systems. Information about RSNetWorx for ControlNet software can
be found at
.
Scanner
A scanner is a separate module (of a multi-module controller) or a built-in
component (of a single-module controller) that provides communication with
option modules connected to a network. See also Controller.
SI (Serial Interface)
A next generation communication interface used by various Allen-Bradley drives,
such as PowerFlex 750-Series drives.
Status Indicators
LEDs that are used to report the status of the option module, network, and drive.
They are on the option module and can be viewed when the drive is powered and
its cover is removed.
Stop Action
When communication is disrupted (for example, a cable is disconnected), the
option module and drive can respond with a stop action. A stop action 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 option module, it
will stay running but at zero Reference.