Specifications

58How to Create a New DP Master Project

The slave device is the summary of all modules installed in the slave. The GSD file includes all

selectable modules for the slave device. Mark a module in the right list of

Installed Modules

Then select a module in the left list of

Available Modules

and press the <Add before> or <Add

after> button. If you press the <Add before> button, the module is inserted before the selected

entry in the

Installed Modules

list or, in case the <Add after> button is pressed, the module is

inserted after the marked module in the

Installed Modules

list. To remove a module from the

Installed Modules

list, select the module and press the <Remove> button. The slot number they

are added to is shown beside the installed modules.

GXDP automatically determines the maximum possible number of modules per slave, the

maximum I/O size and user parameter length. It checks the number of I/O and user parameter

bytes used by the installed modules against these limits.

After clicking <Ok> the

Slave Parameter Settings

dialog appears again.

Note:

Adding or removing slave modules may change the addresses of the I/O data in the

buffer memory of the master. It is therefore necessary to update the PLC program and (if

used) the autorefresh settings.

Universal Slave Module Type

Some slave GSD files do not contain module descriptions, but require the module configuration

data (‘cfg_data’) to be constructed in the configuration tool via a so-called ‘Universal Module’. If a

slave GSD file does not contain module definitions, GXDP displays the entry

Universal

in the

Slave Modules

dialog. One or more universal module entries can be added to the

Installed

Modules

list. The maximum input/output size for each module is 16 words or bytes.

Note:

Ensure that the slave can work with the respective settings.

The following sample shows a slave with selected Universal modules.