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3.3.3 Automatically Assigning X-SEL I/Os

Set the X-SEL input/output ports to be used in ProfiBus-DP communication. The X-SEL supports many

variations of input/output port settings depending on how the applicable I/O parameters are set. (For details,

refer to “Operation Manual for X-SEL Controller.”)

This manual covers the representative setting method as explained below.

Basically, the input/output port assignment type is set to “automatic assignment” using I/O parameter No. 1, and

input/output port addresses are set using Nos. 2 and 3. If an expansion I/O board is used, install the expansion

I/O board in each slot number in the specified order, and I/O ports will be assigned automatically. There is no

need to set the parameters for initial input/output port numbers for the expansion I/O board.

I/O parameter number Value Description

1 1 I/O numbers are assigned automatically. (Default setting)

2 0 Standard DIs are assigned from input port 0. (Default setting)

3 300 Standard DOs are assigned from output port 300. (Default setting)

14 n

The number of ProfiBus-DP input points is specified as a multiple of 16.

(16 ≤ n ≤ 256)

15 m

The number of ProfiBus-DP output points is specified as a multiple of

16. (16 ≤ n ≤ 256)

z When only a ProfiBus-DP board is installed in the standard I/O slot

(A ProfiBus-DP board is installed in the standard I/O slot and all expansion I/O slots are empty)

[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 Nos. 14 and 15, “Input/output ports used.” <A desired value can be set in a range of 0 to

256 (but the value must be a multiple of 16)>.

The settings are complete.

Example: If you want to assign ports automatically and use 128 inputs and 128 outputs when the maximum

numbers of inputs and outputs of the ProfiBus-DP slave station are 256 and 256, respectively, the

following setting should be used.

X-SEL (J type, 3/4-axis specification)

Not used

(Not available for 1/2-axis specifications.)

Input port Nos. 000 to 015

Output port Nos. 300 to 315

IAI X-SEL Series User Manual

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