Mitsubishi Electric MELSEC iQ-R Series Programming Manual page 1616

For the REMFRD instruction, the number of resends and the response wait timer can be set in the following
link special register (SW) areas.
• Number of resends (REMFR/REMTO) (SW001A)
• Response wait timer (REMFR/REMTO) (SW001B)
If the number of resends (SW001A) is set, the REMFRD instruction completes with an error after the following
time has elapsed:
(Number of resends (REMFR/REMTO) + 1)  Response wait timer (REMFR/REMTO)
Note, however, that no retry is performed if the target station is disconnected. If the REMFRD instruction
completes with an error, execute the instruction again after the target station returns to the system.
Operation error
Error code (SW0080
to SW009F)
4000H to 4FFFH
D000H to DFFFH
18 CC-LINK IE FIELD NETWORK INSTRUCTIONS
1614
18.3 Reading Data from the Intelligent Device Station/Remote Device Station (32-bit Address Specified)
Description
 MELSEC iQ-R CPU Module User's Manual (Application)
 MELSEC iQ-R CC-Link IE Field Network User's Manual (Application)