Figure 4.1 – Rockwell Automation 20-COMM-K CANopen Adapter User Manual

Page 38

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4-2

Configuring the CANopen Network

20-COMM-K CANopen Adapter User Manual
Publication 20COMM-UM012B-EN-P

Figure 4.1

The NMT Slave State Machine

The numbers in

Figure 4.1

correspond to the numbers within the parenthesis

in the following state descriptions.

Initialization State

The CANopen adapter enters the Initialization state automatically after
power-up and after a reset command. After the initialization is done, the
adapter enters into the Pre-Operational state (12).

Pre-Operational State

In the Pre-Operational state, the adapter can be configured and
parameterized, and allocation via SDO is possible but PDO communication
is not allowed in this state. After this state is attained, the node can be
switched to the Operational state when receiving a Start_Remote_Node
message (6) from an NMT master.

Initialisation

Pre-Operational

Stopped

Operational

Power-on

12

10

6

8

7

6

7

8

Reset

Communication

Reset

Application

11

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