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Canopen communication, Network management (nmt), State transitions – Lenze I/O system 1000 System Manual User Manual

Page 253

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CANopen communication

Network management (NMT)

8

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253

EDSIO1000 EN 7.0

State transitions

(3)

(11)

(10)

(9)

(8)

(6)

(7)

(5)

(4)

(2)

(1)

(13)

(12)

(14)

Initialisation

Pre-Operational

Stopped

Operational

E82ZAFU004

Fig. 8−3

Network management status transitions

Status

transition

Command

(hex)

Network status after

change

Effects on process and parameter data

(1)

Initialisation

Initialisation starts automatically when the mains is
switched on.
During initialisation, the I/O system does not take part in
the data transfer.
After initialisation has been completed, the device sends
a boot−up message with an identifier to the master. The
device is automatically set to the Pre−operational status.

(2)

Pre−Operational

In this phase, the master determines the I/O system
communication.

From that moment on, the master changes a status for the whole network. A target address, which is part of the
command, selects the slave(s).

(3), (6)

01 xx

Operational

Network management telegrams, sync, emergency,
process data (PDO) and parameter data (SDO) are active.
Optional:
When the status is changed, event and time−controlled
process data (PDO) will be sent once.

(4), (7)

80 xx

Pre−Operational

Network management telegrams, sync, emergency and
parameter data (SDO) are active (like Enter
pre−operational state )

(5), (8)

02 xx

Stopped

Parameter and process data cannot be received. Network
management telegrams can be received.

(9)

81 xx

Initialisation

The parameters saved last via I1010

h

are loaded for all

indexes. If no values have been saved yet, the Lenze
setting will be loaded.

(10)
(11)
(12)

82 xx

The parameters saved last via I

1010h

are loaded for all

communication parameters (index 0−1FFFh). If no values
have been saved yet, the Lenze setting will be loaded.

(13)
(14)

xx = 00

h

With this assignment, all controllers connected are addressed by the telegram. All controllers can change their status at the same
time.

xx = node ID

If a node address is indicated, the status will only be changed for the controller addressed.