Mitsubishi Electric MELSEC iQ-R Series User Manual page 203

Setting method
For the setting method, refer to the following manual.
 MELSEC iQ-R Inter-Module Synchronization Function Reference Manual
■Inter-module synchronization cycle
To use the CC-Link IE TSN network synchronous communication function, set the same cycle for the following two items.
• "Fixed Scan Interval Setting" under "Inter-module Synchronization Setting" in "System Parameter".
• "Communication Period Interval Setting" under "Basic Settings" of the module parameter
Set the cycle in the following range.
0.25 to 10.0ms (in units of 0.05ms)
■How to calculate an inter-module synchronization cycle
For the cycle to be set, set a value greater than a value obtained by one of the following formulas.
Condition
Execution time of the inter-module synchronous interrupt program (I44) >
cyclic transmission time
Execution time of the inter-module synchronous interrupt program (I44) 
cyclic transmission time
*1 For the values obtained by the calculation formulas, refer to the following.
Execution time of the inter-module synchronous interrupt program (I44) ( User's manual of the CPU module used)
Cyclic transmission time and cyclic processing time ( Page 526 Communication cycle intervals)
■Precautions
To use the CC-Link IE TSN network synchronous communication function, do not set "Not Set" for "0.05ms Unit Setting" of
"Fixed Scan Interval Setting of Inter-module Synchronization" in "System parameter".
None of the inter-module synchronization cycles 0.222ms, 0.444ms, 0.888ms, 1.777ms, 3.555ms, and 7.111ms can be used
by the CC-Link IE TSN network synchronous communication function. Therefore, neither the SSCNET/H supported Simple
Motion module nor Motion CPU can synchronize with the inter-module synchronization cycle.
*1
Calculation formula
Execution time of the inter-module synchronous interrupt program (I44) +
cyclic processing time
Cyclic transmission time + cyclic processing time
9.7 CC-Link IE TSN Network Synchronous Communication Function
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9 FUNCTIONS
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