68
Adding Slaves to the Master
Section 4-3
Obtaining I/O Size Information from the Master Scan List
When connecting the Configurator to a network that is already operating, for
example using OMRON Master Units with fixed allocation, the slave I/O size
can be obtained from the master scan list for use in setting.
However, this is possible only with OMRON masters. Also, the slave I/O size
cannot be obtained from the slave function of the CS1W-DRM21 and CJ1W-
DRM21.
Use the following procedure to obtain the I/O size from a master scan list.
1,2,3...
1.
Select the desired slave, then select
Device
and
Property
.
2.
Select the
I/O Information
Tab.
3.
Click the Get I/O Size from the Scanlist Button.
Parameter Auto Update When I/O Size Changed
The function to automatically update the I/O size registered on the master
scan list when the I/O size is changed can be switched on or off.
To automatically update the I/O size registered on the master scan list, select
Option
and
Parameter Auto Update When I/O Size Changed
.
When this function is enabled, the
mark will be displayed in the menu. The
default is set to not automatically update.
Note
If the function to automatically update the I/O size is enabled and there is no
EDS file, some operations will cause the I/O size in the master scan list to be
updated to zero. For this reason, the function to automatically update the I/O
size should normally be disabled.
4-3
Adding Slaves to the Master
4-3-1
Automatic I/O Area Allocation with Registration
When a slave is registered to the master, it can automatically be allocated to
the memory block set for I/O allocation.
The allocation, for both Out Size and In Size, will be made in the order of reg-
istration beginning with the unoccupied area of memory block 1. When mem-
ory block 1 is filled, the allocation will be made to memory block 2. Before
adding slaves, set the area and range of the allocation memory block.
Note
The allocation area can be changed later if desired.
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