Allen-Bradley ControlNet PLC-5 User Manual

1785-UM022B-EN-P - February 2002
P-2 Preface
Terminology
Monitoring and troubleshooting your ControlNet system
Using the status indicators
Chapter 5
Processor specifications Appendix A
Processor status file Appendix B
ControlNet instructions Appendix C
ControlNet I/O map table entry status words and error messages Appendix D
Fault codes Appendix E
ControlNet diagnostics file layout Appendix F
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Term Description
Actual Packet Interval (API) the actual time it takes for the ControlNet network to update the requested data. The largest
binary multiple of the Network Update Time (NUT), smaller or equal to the Requested Packet
Interval (RPI). For more information, see page 2-2.
ControlNet network communication architecture that allows the exchange of data between Allen-Bradley
Company, Inc. products and certified third-party products
ControlNet PLC-5 processors references PLC-5/20C, -5/40C, -5/46C and -5/80C programmable controllers phase 1.5
connection opened communication path between two nodes on a ControlNet network
DData Input File (DIF) integer file used by ControlNet PLC-5 processors to store discrete and non-discrete input
data. The DIF cannot be forced
Data Output File (DOF) integer file used by ControlNet PLC-5 processors to store discrete and non-discrete output
data. The DOF cannot be forced
discrete I/O data transfer type of data transfer in which single units of I/O have discrete relationships with values in
the processor’s data table; uses the processor’s input- and output-image tables (I and O
files); configured on a per-node basis in the ControlNet I/O map table
frame single data transfer on a ControlNet link
drop cable cable that connects a ControlNet node to the trunk cable; integral part of 1786 taps
I/O map table
(scanlist configuration)
table that you configure using the programming software to map data from an I/O chassis
and other devices on the ControlNet network to particular data table file addresses
keeper device that stores and distributes ControlNet configuration data to all nodes on the network.
A minimum of one keeper device is required on each ControlNet network.
link collection of ControlNet nodes with unique network addresses in the range of 01-99; segments
connected by repeaters make up a link; links connected by bridges make up a network
map table entry
(scanlist entry)
one entry in the I/O map table that you configure using the programming software to map
data from one I/O chassis or other device on ControlNet to particular data table file
addresses
network access port (NAP) port that provides a temporary ControlNet-network connection through an RJ-45 connector
network address node’s address on the ControlNet network
network update interval (NUI) single occurrence of the ControlNet Network Update Time (NUT)

Allen-Bradley ControlNet PLC-5 Specifications

General

Brand	Allen-Bradley
Model	ControlNet PLC-5
Category	Controller
Language	English