Network Topology; Communication Period Setting - Mitsubishi Electric MELSEC iQ-F FX5 Series User Manual

Network topology

Select the network topology type according to the actual network configuration.
Setting is not required and can be left as "Line/Star" (default).

Communication period setting

Perform basic cycle setting and multiple cycle setting.
• Basic cycle setting requires calculation of the communication cycle interval and cyclic transmission time. ( Page 215
Communication cycle intervals)
• Multiple cycle setting is used when communication cycles coexist. ( Page 40 Communication cycle coexistence)
Item
Basic Period Setting in Units of 1s
Setting
Communication Period Interval Setting
(Do Not Set it in Units of 1s)
Communication Period Interval Setting
(Set it in Units of 1s)
System Reservation Time
Cyclic Transmission Time
Transient Transmission Time
Multiple Cycle Normal-Speed
Setting
Low-Speed
When the TSN switching hub is used, set the timeslot information from the setting values in "Basic Period
Setting".
The timeslot information can be checked with the buffer memory. ( Page 191 Timeslot information)
Description
Select whether to set the basic cycle in increments of 1s.
Select a communication cycle interval.
Input a communication cycle interval.
Necessary time for the system to guarantee the
communication cycle interval.
Of communication cycle intervals, set the time to be allocated
to cyclic transmission.
The value of "Communication Period Interval Setting" minus
"Cyclic Transmission Time" and "System Reservation Time" is
displayed.
Select the "Normal-Speed" cycle for a basic cycle.
Setting is not required and can be left as "4".
Select the "Low-Speed" cycle for a basic cycle.
Setting is not required and can be left as "16".
Setting range
• Set
• Do Not set
(Default: Do Not set)
• 250.00s
• 500.00s
• 1000.00s
• 2000.00s
• 4000.00s
• 8000.00s
(Default: 1000.00s)
250.00s to 10000.00s (in
increments of 1s)
(Default: 1000.00s)
20.00s (fixed)
5.00s to 9966.00s (in
increments 1s)
(Default: 500.00s)
14.00s to 9975.00s (in
increments of 1s)
(Default: 480.00s)
(Default: 4)
(Default: 16)
7 PARAMETER SETTINGS
7.3 Basic Settings
7
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