Wachendorff WDGA 58V handleiding
Handleiding
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Technical Manual
WDGA with CANopen Interface
5 - General information about CAN
© Wachendorff Automation GmbH & Co. KG
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5.4 Network management (NMT)
A CANopen network always needs a network management master. The NMT master
controls the NMT states of all connected nodes.
A node can be switched into three different states:
• Pre-Operational
• Operational
• Stopped
• After a CANopen node is switched on and the communication
and the internal application is initialised, the node switches
into pre-operational state. From this state the NMT-Master
can switch the node into the other states. To show that a
node is ready after boot up, it sends a "boot-up message".
These messages uses the CAN-ID of the Emergency service
(EMCY).
The message is permanently associated with the node ID.
Description of the NMT-states:
Pre-Operational
Object
Communication enabled
SDO
yes
PDO
no
NMT
yes
SYNC
no
EMCY
yes
Heartbeat
yes
SDO communication is enabled.
PDO communication is disabled.
Table 5.4: Available communication – Pre-Operational
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Productinformatie
| Merk | Wachendorff |
| Model | WDGA 58V |
| Categorie | Niet gecategoriseerd |
| Taal | Nederlands |
| Grootte | 11685 MB |
