Starting Up The System - Mitsubishi Electric MELSEC iQ-RJ71EN71 User Manual

6.
Set the submaster parameters as follows.
[Navigation window]  [Parameter]  [Module Information]  [RJ71GF11-T2]  [Module Parameter]  [Submaster
Parameters]
7.
Set the network configuration. Set the same network configuration as that of the master station. ( Page 161 Setting
in the master station)
When "Read Parameters of the Master Station" is selected for "Submaster Parameters" in "Basic Settings",
the submaster station operates according to the parameters set for the master station. Note, however, that
data link cannot be started if the submaster station starts up independently (such as when the submaster
station is powered off and on during data link by the submaster station with the master station disconnected);
therefore, it is recommended to set the same parameters as those of the master station in the submaster
station. To reflect the settings of the master station into the submaster station, data link needs to be performed
with the master station once.
8.
Set "Data Link Error Station Setting" to "Hold". Follow the same procedure as that for the master station. ( Page 161
Setting in the master station)
9.
Write the set parameters to the CPU module on the submaster station.
[Online]  [Write to PLC]
In this example, default values were used for parameters that are not shown above. For the parameter setting,
refer to the chapter explaining the parameters in this manual. ( Page 124 PARAMETER SETTINGS)

Starting up the system

Reset the CPU module or power off and on the system in order of the local station, master station, and submaster station.
Start up the master station before the submaster station. If the submaster station is started up first, it may
operate as a master operating station. Even if the submaster station operates as a master operating station,
the master station starts to take in control after it starts up. Then 'Data link error status of own station'
(SB0049) temporarily turns on, causing an error to be detected. (This applies when "Return as Master
Operation Station" is selected for "Operation of Master Station after Reconnection" in "Basic Settings".)
The MST LED of the master/local module are as follows.
• Master station (master operation): On
• Local station: Off
• Submaster station (submaster operation): Flashing
3 PROGRAMMING
166
3.2 Communication Example Using the Submaster Function