Nmt Slave Identification; Nmt Master Startup - Mitsubishi Electric MELSEC-F FX3U-CAN User Manual

FX -CAN User's Manual
3U
5.8.4

NMT slave identification

The NMT startup master and the LSS master are using the NMT slave identification data to identify the NMT
slave before configuring the NMT slave.
If the configured identification data on the NMT master are different than responded from the NMT slave, the
NMT startup master service will stop the startup of this NMT slave.
The Sub-index corresponds to the NMT slave Node-ID. The default value 0 has the meaning not configured,
and the NMT master will skip this entry.
For the LSS Master all NMT slave Identification data need to be configured! For the NMT Startup Master, the
NMT slave identification entries are optional.
1. Object H1F84 Sub-index H01 to H7F: Device Type
The sub-index corresponds to the Node-ID.
The value refers to the object H1000 sub-index 00 of the corresponding Node-Id.
2. Object H1F85 Sub-index H01 to H7F: Vendor identification
The sub-index corresponds to the Node-ID.
The value refers to the object H1018 sub-index 01 of the corresponding Node-Id.
3. Object H1F86 Sub-index H01 to H7F: Product code
The sub-index corresponds to the Node-ID.
The value refers to the object H1018 sub-index 02 of the corresponding Node-Id.
4. Object H1F87 Sub-index H01 to H7F: Revision number
The sub-index corresponds to the Node-ID.
The value refers to the object H1018 sub-index 03 of the corresponding Node-Id.
5. Object H1F88 Sub-index H01 to H7F: Serial number
The sub-index corresponds to the Node-ID.
The value refers to the object H1018 sub-index 04 of the corresponding Node-Id.
5.8.5

NMT master startup

The NMT startup master behaves according to the NMT state machine as defined in Subsection 5.8.1. Before
the NMT master transitions from NMT state Pre-operational to NMT state Operational, all assigned NMT
slaves shall be booted.
The Main flow chart for the NMT master startup is shown in Figure 5.1
Figure 5.2 is a simple startup overview to show the influence of the BFM #70 setting. It is recommended not to
use the simple startup because it can not be guaranteed that every NMT Slave will be set into Operational
state. Setup the NMT slave startup values for every connected NMT slave on the NMT master instead.
Figure 5.1: NMT Master startup process
OD Index
H1F80 Bit 0
OD Index
H1F80 Bit 5
74
Come from Power-on or Reset
no
Configured as
NMT master?
yes
lost
NMT flying master
process
won
To the next page
→ For NMT slave startup, refer to Subsection 4.7.6
5 Introduction of Functions
5.8 Network Management
Switch to NMT
slave mode