11.7
NMT Functions
The NMT (Network management) functions describe the NMT state machine and
NMT error control functions. The NMT state machine is controlled by NMT commands.
The error control functions guarding and heartbeat are set up by associated commu-
nication objects and controlled by special protocols.
The NMT-State is displayed via the actual value parameter
Node-State
1290.
11.7.1
NMT state machine
A change of NMT-State may also be triggered by a communication (Bus-off, Guard-
ing, etc.). The behavior of the NMT state machine in such a case is described in
Chapter 12.2.17 “0x1029/n Error Behavior”.
transition
NMT command
(1)
At power on NMT state Initialisation is entered autonomously
(2)
NMT state Initialisation finished
NMT state Pre-Operational en-
tered automatically, device sends Boot-Up message
(3)
Start Remote Node
(4), (7)
Enter Pre-Operational
(5), (8)
Stop Remote Node
(6)
Start Remote Node
(9), (10), (11)
Reset Node. Communication objects 0x1nnn and application ob-
jects 0x6nnn are reset.
(12), (13), (14) Reset Communication. Communication objects 0x1nnn are reset.
In state transition (2) Initialisation
Pre-Operational the device sends the Boot-Up
message.
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Summary of Contents for Vectron Active Cube
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