3-27
3 Configuration Software
CJ-series PROFINET IO Controller Unit Operation Manual for NJ-series CPU Unit (W511)
3-3 PROFINET
IO C
ontroller DT
M
3
3-
3-3 C
onfig
uration
Additional Information
•
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.
•
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 modules, before setting up the CPU
memory mapping configuration.
Precautions for Correct Use
Precautions for Correct Use
The default mapping of areas to the CPU memory are 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 CPU system as the
CJ1W-PNT21 PROFINET IO Controller Unit.
Mapping Area Control
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.
Note 1
If an invalid setting is made the Occupied length value changes its color to red. Upon saving
the changes, in addition, a warning message will be displayed. Examples of invalid settings
are:
•
The start address and length definitions of the data block cause it to exceed the memory
area in the CPU.
•
The data mapping of two or more I/O Areas (Output and/or Input) overlap each other
partly or totally in the CPU memory.
2
The
Compress
button will be disabled, that is greyed out, when Auto-Addressing has been
enabled.
Control
Description
Area
Selects the CPU 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)
Start Address
In this field the user can enter the start address in the CPU memory of the
mapped data block.
Length
The length box allows the user to select the number of visible rows. The mini-
mum and the default value is 100 words. The Length value can be set to up to
7168 words.
Occupied
This field displays the actual length of the data block (not necessarily the
same as the amount of data contained by it). This length includes both data
as well as any gaps between modules. Gaps may only be there if the Auto-
Addressing option in the Master Setup tab is disabled (See also Note 1).
Compress Button
Pressing the Compress button will compress the Area list associated with it,
that is gaps from the mapping list are removed by moving all mapped I/O
modules as close as possible to the beginning of the memory area. (See
Notes 2 and 3).
