Mitsubishi Electric MELSEC L-Series User Manual page 116

Functions
OD Index 1F90
H
Sub-index 02
H
OD Index 1F90
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Sub-index 01
H
Flying master priority =
Priority level i 128 e Node-ID
The lower the number, the higher
the priority.
OD Index 1F90
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Sub-index 03
H
Un\G27
Fig. 4-36: NMT flying master process
4 – 50
Power on / Un\G25 bit 0 Reset
Initialization
NMT master negotiation time
This time should be set so that all flying
masters finish in nearly the same time as
the negotiation time.
Service Active master detection.
The active master has to
answer within the NMT master
time out time.
No
Active Master found?
Yes
Wait time before sending service Confirmation
NMT flying master negotiation and become
active NMT master.
Time = Priority level i Priority time slot e
The first flying master where this time elapses
shall have the highest priority.
Yes
priority > own priority
No
Send service
Force NMT flying master
negotiation
Yes
From power-on /
Un\G25 bit 0
Reset
No
Start NMT flying
master negotiation
Node-ID i CANopen® device time slot
Service Confirmation
No
NMT flying master nego-
tiation received?
Yes
NMT slave mode
Network Management
NMT service Reset com-
munication all Nodes
OD Index 1F90
H
Sub-index 03
H
OD Index 1F90
H
Sub-index 04
H
OD Index 1F90
H
Sub-index 05
H
Un\G27
Send service Confirmation
NMT flying master negotiation
NMT master mode
Continue with
NMT master startup
MITSUBISHI ELECTRIC