Publication 1769-UM009B-EN-P - May 2002
Glossary 2
I/O An abbreviation for “input and output”.
Input Data Data produced by a DeviceNet device and collected by
the scanner module for the host platform to read.
MAC ID The network address of a DeviceNet node. Also referred
to as node address.
Multicast Used when describing a strobe message.
Network The DeviceNet network or the RSNetWorx for DeviceNet
software representation of the network.
Node Hardware that is assigned a single address on the
network (also referred to as a “device”).
Offline When the host platform is not communicating on the
network.
Online 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
scanner module’s memory. This data is sent by the
scanner module to DeviceNet devices.
PC Abbreviation for an IBM
®
compatible personal-computer.
Point-to-Point Used when describing a poll message. The message
solicits a response from a single, specified device on the
network.
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).
Record The node address and channel-specific memory
assigned in the scanner module’s non-volatile 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 1769-SDN module to support the
exchange of I/O with slave modules.
Slave Mode The 1769-SDN module is in slave mode when it is placed
in another DeviceNet master’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.
Tx An abbreviation for “transmit”.
This term: Means:
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