638
Replace the station-specific parameters in the previous page with refresh parameters.
• Image of assignment by link refresh
(5) END processing time of CPU module
If a sequence program used for MELSECNET/H is utilized in CC-Link IE Controller Network, the END processing
time of the CPU module is increased due to the influence of the link refresh time. (The network parameter settings
(number of stations, network range assignment, etc.) are assumed to be the same.)
Reducing the link refresh points can shorten the END processing time of the CPU module. ( Page 69,
Section 4.1.3)
Condition for use in MELSECNET/H END processing time of CPU module
Instruction execution time in sequence scan time > Link scan time Same as the case where a MELSECNET/H module is mounted.
Instruction execution time in sequence scan time < Link scan time
The END processing time of the CPU module is increased,
compared with the case where a MELSECNET/H module is
mounted.
Since the link scan time in CC-Link IE Controller Network is short,
the points of cyclic data that are sent from respective stations are
increased.
Because of this, the link refresh time is prolonged and the END
processing time of the CPU module is increased.
Station No.1(a)
Station No.2
Station No.3
Station No.4
Station No.5
Station No.1(b)
Link relay (B)
Link refreshLink refresh
0
FF
100
1FF
200
2FF
300
3FF
400
4FF
500
5FF
Station No.1(a)
Station No.1(b)
Station No.2
Station No.3
Station No.4
Station No.5
Network range assignment (LB)
0
1FF
200
2FF
300
3FF
400
4FF
500
5FF
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