User manual

IEC61131 User and Reference Manual
April 22, 2008
490
in the following list. Other SCADAPack controllers do not support DNP master and do not include
the bolded items. This tree control contains headings for:
 Application Layer
 Data Link Layer
 Master
 Master Poll
 Address Mapping
 Routing
 Binary Inputs
 Binary Outputs
 16-Bit Analog Inputs
 32-Bit Analog Inputs
 Short Floating Point Analog Inputs
 16-Bit Analog Outputs
 32-Bit Analog Outputs
 Short Floating Point Analog Outputs
 16-Bit Counter Inputs
 32-Bit Counter Inputs
When a tree control is selected by clicking the mouse on a heading a property page is opened for the
header selected. From the property page the DNP configuration parameters for the selected header is
displayed.
As DNP objects are defined they are added as leaves to the object branch of the tree control. When
an object is defined the object branch will display a collapse / expand control to the left of the
branch.
The Allow Duplicate Modbus Addresses checkbox (in the bottom left corner) determines if the
Modbus I/O database addresses assigned to the DNP data points must be unique. Check this box if
you want to allow more than one point to use the same Modbus address.
Uncheck the box if you want to be warned about duplicate addresses. If an attempt is made to use a
Modbus address that has already been used for another DNP point the following warning is
displayed.