Mitsubishi Electric MELSEC iQ-R Series User Manual page 87

Precautions
• CC-Link IE TSN Class A devices cannot synchronize using network synchronous communication. (Page 81 Applicable
device)
• For the number of connectable stations of CC-Link IE TSN-compatible devices and their connection order, refer to
"Specifications of Interfaces with External Devices" and "SYSTEM CONFIGURATION" (in the chapter of the control mode
used) of the following manual.
MELSEC iQ-R Motion Module User's Manual (Startup)
• When specifying a Motion module as the inter-module synchronization target, mount it on the main base unit.
• When a local station is specified as the target module for the inter-module synchronization, the master station cannot be set
as the target module.
• When multiple Motion modules are specified as the target modules for synchronization on the same base unit, set the slot
number of the leftmost one for "Mounting Slot No." under "Inter-module Synchronization Master Setting" in "System
Parameter".
• In a multiple CPU system configuration, only the Motion module controlled by the CPU No. 1 can be specified as the target
for the inter-module synchronization.
• Set the same cycle for "Fixed Scan Interval Setting of Inter-module Synchronization" in "System Parameter" and
"Communication Period Interval Setting" in "Basic Settings" of the module parameter.
• As shown in the figure below, any other networks that are after the first local station cannot be synchronized.
Master station Local station
• To use a switching hub, refer to the CC-Link Partner Association website (www.cc-link.org) for the models and usage
methods of supported switching hubs.
• Do not set "Not Set" for "0.05 ms Unit Setting" of "Fixed Scan Interval Setting of Inter-module Synchronization" in "System
Parameter". Select "Set" for "0.05 ms Unit Setting", and select a value from 0.25/0.50/1.00/2.00/4.00/8.00 ms.
• When a switching hub is used, the local station may detect an error at start-up the system. In such a case, take corrective
actions according to the error code.
• Do not perform the online change in the CPU module. If the online change is used in the CPU module, there may be a
delay in the start of the inter-module synchronous interrupt program (I44) in the interrupt program. In this case, the total
value of the execution time of the inter-module synchronous interrupt program (I44) and the cyclic processing time exceeds
the next inter-module synchronization cycle (next communication cycle), and the inter-module synchronous transmission
omission occurs. The watchdog counter also detects an error because cyclic transmission cannot be performed within the
communication cycle.
Restriction of version
■ Number of settable stations
The following table lists the number of settable stations in "Select Inter-module Synchronization Target Module" of the "Inter-
module Synchronization Setting" tab under "System Parameter".
Add-on baseSystem version of the Motion module
"1.16" or later
Master station Local station
Number of settable stations
8
1.6 CC-Link IE TSN Network Synchronous Communication Function
1
1 FUNCTIONS
85