Omron CJ1W-DRM21 Operation Manual page 150

4 Remote I/O Master Communications
User-set Remote I/O Allocations Using Device Variable for CJ-series Unit
Change *_Sw1MstrEnblCmd (Master Enable Switch) to TRUE (The master will remain enabled even if the power is turned OFF and back ON again.)
1) From Sysmac Studio, change data in *_MstrAlocTblCfg[0] to *_MstrAlocTblCfg[5] (Master User-set
2) Change *_Sw1MstrAlocCmd (Master User-set Allocations Switch) to TRUE.
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Turn ON the communications, slave, and Controller power supplies.
Switch the CPU Unit to PROGRAM mode.
Note: Execute this only when master communications are disabled. (If the Master Enable
Switch is turned ON when master communications are enabled, a Unit error will occur
and a C2 error will be displayed on the 7-segment indicator on the front panel.)
Allocations Setup Table), to TRUE, and set the data to the Allocation Size Setup Table.
Master remote I/O communications will begin with the scan list enabled.
(Use the software switches to start or stop communications.)
Check to see if both the MS and NS indicators are lit green on the Master Unit and all slaves.
Define user-defined variables in the area to which I/O data is allocated.
CJ-series DeviceNet Units Operation Manual for NJ-series CPU Unit(W497)
Note Turn ON the communications power supply prior to
turning ON the slave power supply or the slaves may
not go online.
Note: The mode can be confirmed from the dots on the
7-segment indicator on the Master Unit.
Left dot not lit:
Left dot flashing: Scan list disabled
Switch the CPU Unit to RUN mode.
Scan list enabled