Connect Tech CPU Manuel de service télécharger pdf (Page 215)

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101

Programming

CPU 317T: Technology Functions

A5E00251798-03

5-17

5.10 Programming axis-specific parameter changes

The parameters of the technology objects are set in S7T Config can be edited at

FB 407 "MC_WriteParameter" in the user program while Technology CPU is in

RUN. These changes are valid until the next POWER OFF or CPU memory reset.

Some of the parameters are not validated until the addressed technology object is

initialized again (restart). This is only possible when the technology object is

locked. After power is cycled at the Technology CPU, the parameters set in

S7T Config are valid again.

You basically have two options of changing parameters:

• By editing the corresponding input parameters.

• By editing the parameters in the instance DB of FB 407. You can select several

instance DBs to edit different parameters.

Creating an instance DB for FB 407 "MC_WriteParameter"

1. In SIMATIC Manager, select the block folder.

2. Select the Add > S7 block > Data block to add a new block.

3. Assign the required name, then select "Instance DB" and the corresponding

FB 407.

4. You can also define a symbolic name and a symbolic comment.

5. Close the application and confirm the new block with "OK".

Changing parameters by editing input parameter data

To change a parameter of a technology object, you require its parameter number,

type, access mode and information on the permitted range of values. This

information is available in the parameter list. However, it is advisable to use the

configuration view of the instance DB, because there you can also search for

parameters.

1. In SIMATIC Manager, open the instance DB (opens the "DB-Param" tool and

shows the content of the instance DB in the parameter assignment view.)

2. Select the technology object you want to reconfigure from the drop-down list.

3. In the tree view, select the relevant group and the parameter.

4. Hold the mouse cursor briefly over the parameter entry. The short info shows

you the parameter number, its type and access mode ("read, write"). Note

down these values to enter them later at the FB input parameter. You can also

print the List of technology parameters of the Online Help.

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Connect Tech CPU Manuel de service Page 215

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