Rockwell Automation 1747-SDN SLC 500 DeviceNet Scanner Module User Manual - Manual (Page 154)

Publication 1747-UM655B-EN-P - June 2007
154 Glossary
Host Platform
The computer on which the application software is run.
I/O
An abbreviation for input and output.
Implicit Messaging
The type of messaging used for high-priority I/O control data; for
example, change of state, cyclic, polled, or strobed.
Input Data
Data produced by a DeviceNet device and collected by the module
for the host platform to read.
Interscan Delay
The time between I/O scans (polled and strobed). It is the time the
1747-SDN module waits between the last poll message request and
the start of the next scan cycle.
M1/M0 File Transfer
A method of moving large amounts of data between a SLC 500
processor and the 1747-SDN module. It transfers files containing a
maximum of 256 words and may take more than one SLC program
scan to complete.
MAC ID
The network address of a DeviceNet node.
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.