Rockwell Automation D17846.2.4 CONTROLNET KT EMULA - Manual (Page 41)

Publication 1784-6.2.4 - September 1997
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PCCC—
Programmable Controller Communication Commands. These are
commands for communicating with Allen-Bradley
programmable logic controllers.
PLCTM Controller—
An Allen-Bradley programmable controller. This is a stored program
device.
Polled—
Configuration where the host must monitor the Receive Access
Request and the Receive Data Valid bytes to determine when a packet
is available for processing.
Receive Packet—
A packet of data received from another node.
Receiver—
The node which receives a message or command.
Remote Node—
The target node of the originating node.
Requestor—
The node which sent a packet to request data.
Reset—
The operating state where the card is on the network and waiting for
the start-up procedure to be placed on-line.
Send Packet—
A data packet or command packet sent to another node.
Sender—
The node which sends a message or command.
Solicited Messaging—
Deterministic and repeatable message
transfers that are continuous and asynchronous to the ladder-logic
program scan on a ControlNet network.
Station—
A node on the network.
TNS—
TraNSaction number. An incremental serial number attached to all
packets. This number maintains associativity for all network transac-
tions.