4 network management (nmt), 1 communication phases, L-force controls | i/o system 1000 – Lenze L-force I/O System 1000 User Manual

Page 87

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2.0 EN - 11/2010

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L-force Controls | I/O System 1000

Networking via CAN system bus

Network management (NMT)

7.4

Network management (NMT)

Via network management, the master is able to make status changes for the entire CAN

network.

7.4.1

Communication phases

State

Explanation

"Initialisation"

(initialisation)

After the I/O system has been switched on, the initialisation is carried out. During

this phase, the I/O system is not involved in the data transfer on the bus.

Furthermore, it is possible in every NMT state to carry out part of the initialisation or

the entire initialisation again by transmitting various telegrams (see "State

transitions"). During this process, all parameters that have already been set receive

their standard values again.

After the initialisation is complete, the I/O system is automatically in the "Pre-

Operational" state.

"Pre-Operational"

(before the I/O system is

ready for operation)

The I/O system is able to receive parameter data.

Process data are ignored.

"Operational"

(ready for operation)

The I/O system is able to receive parameter data and process data.

"Stopped"

(stopped)

Only network management telegrams can be received. Parameter data and process

data are not received.

The outputs of the modules switch to the configured state.



Monitoring ( 90)

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