Network Management Objects; Module Control Protocols - WAGO -I/O-SYSTEM 750 Technical Description

4.3.3 Network Management Objects

4.3.3.1 Module Control Protocols

The NMT master can use these protocols to check the status of the NMT
slave. The following states are defined: INITIALIZING, PRE-
OPERATIONAL, OPERATIONAL and STOPPED. It is possible to change
the status of all nodes with one command or to change the status of each node
individually.
4.3.3.1.1 Start Remote Node
This service is used to change the NMT Slave (bus coupler) status to
OPERATIONAL.
NMT Master
request
Fig. 4-12: Start Remote Node
Node ID = 0: The state of all existing nodes is changed to OPERATIONAL.
4.3.3.1.2 Stop Remote Node
This service is used to change the NMT Slave (bus coupler) status to
STOPPED.
NMT Master
request
Fig. 4-13: Stop Remote Node
Node ID = 0: The state of all existing nodes is changed to STOPPED.
WAGO-I/O-SYSTEM 750
CANopen
Network Communication
Start Remote Node
0 1
CS Node
= 1 ID
COB-ID = 0
Stop Remote Node
0 1
CS Node
= 2 ID
COB-ID = 0
CANopen • 97
NMT Slave(s)
indication(s)
g012415x
NMT Slave(s)
indication(s)
g012416x