Mitsubishi Electric MELSEC iQ-R Series User Manual page 94

Setting method
Set in the "Parameter of Device Station" window. (Page 120 Parameter processing of a device station)
Precautions
• A device station whose device station parameter automatic setting abnormally ended does not start data link, and
'Execution result of device station parameter automatic setting function' (SW0160 to SW0167) turns on. Check 'Detailed
execution result of device station parameter automatic setting' (SW0194) and the event history and perform corrective
actions according to Action of the error codes list.
• Do not disconnect the device station that is currently executing an automatic update of saved parameters. Update of
parameter may fail.
• Do not turn off the master station that is currently executing an automatic update of saved parameters. Incorrect
parameters are automatically set in the device station at the next power-on.
• The following are the operations depending on the version of the Add-on baseSystem when automatically updating saved
parameters.
Version of Add-on baseSystem
"1.7" or earlier
"1.8" or later
• Check if the checkbox of "Parameter Automatic Setting" of the device station is selected in "Network Configuration
Settings" under "Basic Settings".
• Check if the IP address of the device station in the "Network Configuration settings" under "Basic Settings" matches the
actual IP address of the device station.
• When different communication speeds are set for the master station and the station where device station parameter
automatic setting is performed, the device station parameter automatic setting may end abnormally. If the setting ends
abnormally, check if the communication speed is matched.
• When the parameters of a device station are stored in the SD memory card, set "Use" of "Device Station Parameter" in
"Setting of File/Data Use or Not in Memory Card" under "Memory Card Parameter" for the CPU module.
• In "Network Configuration Settings" under "Basic Settings" in all master stations controlled by the CPU module, set 1024 or
smaller to the total number for the device station parameter automatic setting including extension modules.
When changing (writing back) the device station parameters of MR-J5(W)-G, set the servo parameter
"Parameter automatic backup update interval (PN20)". By setting this parameter, parameters are written back
at the set interval when there is a difference between the parameters stored in the CPU module and device
station.
To apply the changed parameters to the project, perform the following procedure.
• Device station parameter setting screen  "Read"  Read parameters directly from the servo amplifier 
Apply the device station parameters to the project
The number of times for writing data from the CPU module to the data memory is limited. For details, refer to
the following manual.
MR-J5-G/MR-J5W-G User's Manual (Parameters)
1 FUNCTIONS
92
1.8 Others
Description
If saved parameters are not in the CPU module when executing an automatic update of saved parameters, an
error response is returned to the relevant device station.
If saved parameters are not in the CPU module when executing an automatic update of saved parameters,
device station parameters are newly created.