Omron CJ1W-PNT21 Operation Manual page 65

CJ1W-PNT21 PROFINET IO Controller DTM
I/O Mapping Box
Note
!Caution
Mapping Area Control
/i
Column
Device No.
Device Name
Slot
Device Type
Module Type
Size
Type
Address
Each Output/Input Allocation tab also contains two areas onto which the I/O
data can be mapped. The areas are subsequently mapped onto the PLC
memory. By default all data is mapped to Area 1, in ascending order of the IO
Device Number.
1 When mapping, the modules are copied from the module list to the mapping
Area. The module list acts as a resource for the two Mapping Areas. To change
the mapping of a module drag and drop it from the module list to the Mapping
Area.
2 When adding or removing slaves and modules, while Auto Addressing has been
enabled, the modules in the Areas will be re-mapped, usually also resulting in I/O
data being re-mapped. Therefore it is recommended to define all slaves and mod-
ules, before setting up the PLC memory mapping configuration.
The default mapping of areas onto the PLC memory is the same default mapping as
used in the CJ1W-DRM21 Devicenet Master/Slave Unit and in the CJ1W-PRM21
PROFIBUS Master unit. Care should be taken to avoid data overlap, if such a Unit is
part of the same PLC CPU system as the CJ1W-PNT21 PROFINET IO Controller Unit
Each mapping Area in the Allocation tab is equipped with four controls and an
information field located below the Area. The controls and information field are
listed and explained in the table below
/i
Control
Area
Start Address
Description
The Device No. is the number used by the PROFINET IO
Controller DTM to reference the IO Device within the configu-
ration.
The Device Name is the name assigned to the IO device to
which this I/O data belongs to.
The Slot number is the position in which this particular mod-
ule is inserted. The information is supplied by the IO device
DTM.
The Device Type is supplied by the IO Device DTM.
The Module Type is supplied by the IO Device DTM.
The Size of the module.
The Datatype of the module.
The Address is the PLC Address with which the I/O Data of
the module is exchanged.
Description
Selects the PLC memory area to which the associated
I/O Area will be mapped. Possible options are:
• Not Used (List must be empty).
• CIO
• DM
• WR
• HR
• EM Bank 0 to 12 (Decimal)
(See Note 1)
In this field the user can enter the start address in the PLC
memory of the mapped data block.
Section 4-3
51