Mitsubishi Electric MELSEC iQ-R C Series Programming Manual page 22

*1 To directly access link devices, access them as link direct devices (J\) depending on network module specifications. An access
target device varies depending on a device number to be specified. Therefore, a device number which is actually accessed may be
different from the specified device number.
For specification method for accessing link direct devices (J\) using MELSEC data link functions, refer to the following:
MELSEC iQ-R C Controller Module User's Manual
1 COMMON ITEMS
20
1.3 MELSEC Data Link Functions