Omron SYSMAC CS Series Operation Manual page 195

I/O Communication Characteristics
Example
Selecting the I/O Area
Start Address
1,2,3...
Note
174
Note Compressing an Input/Output area has no effect on the start address of the
area.
The figure below, shows the effects on the previous example, after pressing
the Compress button in both Output areas.
After finalizing the mapping of the I/O modules on to the various I/O areas, the
addresses to which the areas will be mapped in the PLC memory need to be
defined. To define the area mapping, perform the following settings.
1. For each area, which contains I/O modules, select the PLC memory area.
2. For that area, set the address to which the first location of the Input/Output
area will be mapped. The Input/Output area will occupy the PLC memory
area, from this start address to ascending memory locations.
3. The total size per Input/Output area can be found for each area, next to the
PLC memory area selection box (see for example, the figure above, in
which Output area 1 occupies 6 words).
1. The CS1/CJ1W-PRM21 Master DTM will check whether two or more se-
lected mappings on to the PLC memory will be overlapping. In that case,
the start address set, will be shown in red.
2. Upon downloading the configuration to the CS1W/CJ1W-PRM21 PROFI-
BUS Master Unit, the Master DTM will also check if the PLC memory areas
selected do exist in the PLC CPU model, connected to the Master Unit
(e.g. are any selected EM-banks present).
3. If any mapping error is discovered by the Master DTM, an error message
is displayed, and download is terminated.
Section 6-5