Rockwell Automation 20-COMM-D DeviceNet Adapter Series B FRN 2.xxx User Manual
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Glossary
G-7
20-COMM-D DeviceNet Adapter User Manual
Publication 20COMM-UM002G-EN-P
Polled I/O Data Exchange
A device that is configured for polling I/O data exchange sends data
immediately after it receives a request for the data. For example, an adapter
receives a Logic Command from the scanner and then sends back the Logic
Status of the connected PowerFlex drive.
PowerFlex 7-Class (Architecture Class) Drives
The Allen-Bradley PowerFlex 7-Class family of drives supports DPI and, at
the time of publication, includes the PowerFlex 70, PowerFlex 700,
PowerFlex 700H, PowerFlex 700S, PowerFlex 700L, and PowerFlex 7000.
PowerFlex 750-Series (Architecture Class) Drives
The Allen-Bradley PowerFlex 750-Series of drives supports DPI and, at the
time of publication, includes the PowerFlex 753 and PowerFlex 755 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.
R
Reference/Feedback
The Reference is used to send a setpoint (for example, speed, frequency, and
torque) to the drive. It consists of one word of output to the adapter from the
network. The size of the word (either a 16-bit word or 32-bit word) is
determined by the drive.
Feedback is used to monitor the speed of the drive. It consists of one word
of input from the adapter to the network. The size of the word (either a
16-bit word or 32-bit word) is determined by the drive.
RSLogix 5/500/5000 Software
RSLogix 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
.
RSNetWorx for DeviceNet Software
A software tool for configuring and monitoring DeviceNet networks and
connected devices. It is a 32-bit application that can be used on computers
running various Windows operating systems. Information about
RSNetWorx for DeviceNet software can be found