Omron CJ Series Operation Manual page 101

Note 1 If an invalid setting is made the Occupied length value will change its color to red, indicat-
ing an invalid setting. In addition, a warning message will be displayed, upon saving the
changes. Invalid settings are for example
• The start address and length definitions of the data block will cause it to exceed the area
in the CPU.
• The data mapping of two or more I/O Areas (Output and/or Input) will be overlapping
each other partly or totally in the CPU memory.
2 The Compress button will be disabled, i.e. grayed out, when Auto-Addressing (see section
5-4-1 Setting the Master Parameters) has been enabled.
3 Before compressing, the Master DTM will display a warning message prompting the user
for confirmation of the action.
 Changing Mapped Data Allocations
By default, the data is mapped to area 1 in both the Output and Input Allocation tabs. It is however
possible to map a part of the data to the second area in the same tab. For example, an application
may require to store all byte data in one location and all word data in another.
Moving data mapped in one area to another area is done from the module list. The procedure is as
follows.
1
Find the module which must be mapped to a desired Area in the module list, and select it.
2
Left-click the module and drag it, while holding the Left mouse button, to the desired Area. This
can be the end of the list or any empty space in the list in which it will fit (See Note).
3
Release the mouse button. The module data is copied in the desired Area and appended to the
already existing list. The same entry in the other list is now deleted.
4
Finally, the CPU memory address to which the module is mapped is now updated in the module
list.
Note 1 If Auto-Addressing is enabled (see Master Setup tab in this section), any empty spaces
resulting from moving of modules to another Area will be removed by compressing the list.
Modules located to a higher address will be moved to a lower address to fill up the gap.
2 If Auto-Addressing is disabled, compressing the list can be accomplished by pressing the
Compress button, after all modifications to the mapping have been made.
Advanced Tab
The Advanced tab displays the settings required for PROFIBUS DP-V1 Class 2 communication with
Slave devices. The Advanced tab is shown below.
CJ-series PROFIBUS Master Unit Operation Manual for NJ-series CPU Unit (W509)
3 Configuration Software
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