14
3.3.4
Using ProfiBus D-P and Expansion I/O Boards Together (Automatic Assignment)
A ProfiBus-DP board is installed in the standard I/O slot and an expansion I/O board is installed in expansion slot
I/O1.
[1]
Enter “1” in I/O parameter No. 1 to specify automatic assignment. (Default setting)
[2]
Set I/O parameter No. 10, “Standard I/O error monitor” to “2.” (Default setting)
[3]
Set I/O parameter No. 11, “Standard I/O error monitor” to a value in a range of “1” to “3.”
[4]
Set I/O parameter Nos. 14 and 15, “Input/output ports used.” <A desired value can be set in a range of 8 to
256 <but the value must be a multiple of 8)>.
The port numbers of the expansion board are assigned automatically in accordance with the numbers of
I/O ports of the ProfiBus-DP slave station set by I/O parameter Nos. 14 and 15.
Example: If one expansion I/O board (IA-103-X-32: 32 input points, 16 output points) is installed in expansion
slot I/O1 when the maximum numbers of inputs and outputs of the ProfiBus-DP slave station are 256
and 256, respectively, entering “256” in I/O parameter Nos. 14 and 15 will automatically set I/O
parameter Nos. 2 and 3, as shown below.
As a standard, input port numbers are assigned sequentially from No. 0. Since the ProfiBus-DP slave
station already occupies 0 to 255 (total 256 points), “256” is automatically assigned as the initial input port
number for expansion slot I/O1 based on fixed assignment.
On the other hand, output port numbers are assigned sequentially from No. 300 as a standard. Since the
ProfiBus-DP slave station already occupies 300 to 555 (total 256 points), “556” is automatically assigned
as the initial output port number expansion slot I/O1 based on fixed assignment.
X-SEL (J type, 3/4-axis specification)
X-SEL (K type)
Input port Nos. 256 to 287
Output port Nos. 556 to 571
Input port Nos. 000 to 255
Output port Nos. 300 to 555
Input port Nos. 256 to 287
Output port Nos. 556 to 571
Input port Nos. 000 to 255
Output port Nos. 300 to 555
