Rockwell Automation 1747-SDN SLC 500 DeviceNet Scanner Module User Manual - Manual (Page 155)

Publication 1747-UM655B-EN-P - June 2007
Glossary 155
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When the host platform is configured and enabled to communicate on
the network.
Output Data
Data produced by the host platform that is written to the module’s
memory. This data is sent by the module to DeviceNet devices.
Polled
A type of input/output-data communication. A polled message solicits
a response from a single, specified device on the network (a
point-to-point transfer of data).
Processor
The SLC 500 programmable controller.
Record
The node address and channel-specific memory assigned in the
module’s nonvolatile storage for a node in the scanlist.
Rx
An abbreviation for receive.
Scanlist
The list of devices (nodes) with which the scanner is configured to
exchange I/O data.
Scanner
The function of the 1747-SDN module to support the exchange of I/O
with slave modules.
Slave Mode
The 1747-SDN module is in Slave mode when it is placed in another
1747-SDN module’s scanlist as a slave device.
Strobed
A type of I/O data communication. A strobed message solicits a
response from each strobed device (a multicast transfer). It is a 64-bit
message that contains one bit for each device on the network.