Modifying fuzzy system parameters online – Rockwell Automation RSLogix 5000 Fuzzy Designer User Manual

Page 145

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Publication LOGIX-UM004A-EN-P - March 2007

RSLogix 5000 Add-On Instruction 145

5. To create a new OPC topic, click New and enter a Topic name.

Set a correct path to the controller in the browser.

6. Click Apply and then click Done.

Modifying Fuzzy System
Parameters Online

When you modify fuzzy system parameters online, parameters are
overwritten directly in the selected controller, that is, in the selected
fuzzy system Add-On instruction tag.

The following conditions must be met:

• The number and the type of components have to be the same in

both projects.

• The number of membership functions of every corresponding

input linguistic variable, output linguistic variable and
intermediate variable has to be the same (their names, types,
and parameter values can vary).

• The number of consequent functions of every corresponding

output Takagi-Sugeno variable has to be the same. The number
of parameters of these functions have to be the same as well
(their values can vary).

• The number and structure of rules of every corresponding rule

block have to be the same. Weights of rules can vary.

• The names of fuzzy system input and output ports have to be

the same as in the fuzzy system which was exported to the L5X
file.

If these conditions are not met, the fuzzy system in the controller may
not be updated online. Then you would have to export the fuzzy
system to the L5X file and import it again to the RSLogix 5000 project.

If the fuzzy system parameters are successfully updated, the following
message appears.

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