Installation Manual Part 2

Installation manual Reader 57
Modications, misprints and errors excepted
English
6. Operating the reader
6.5. GPIO functions
Figure: GPIO functions tab
Readers with GPIO functionality offer the facility to set up small controls which trigger the reader for instance by a
light barrier or which trigger an action at the outputs of the reader by reading specic tags. Such an action might be
switching an output to control the ow of goods.
The GPIO function tab allows the user of the program the facility to load or switch inputs and outputs manually. For
more complex procedures, action lists can be created here, which execute a sequence of commands on the reader.
This list can then be linked to various inputs.
This conguration sheet is divided into 5 different headers. In order to perform settings on a card, rstly the card
number must be selected in the GPIO card drop-down menu. This shows only cards of this type.
The Test output header can be used in order to selectively connect an output manually. In order to enable
this access, the respective output of this card must previously have been connected to protocol access (see
I/O card conguration). The output in the drop-down menu is now selected in the header, and time is dened
using the Duration parameter, until the output automatically returns to its idle mode. The connections can
now be made using the Set output on and Set output off buttons.
The inputs to the reader can be interrogated under the Read inputs header. Whether an input is set or
not is shown in the signal elds. A one-off read process can be triggered by pressing the Read inputs
button. If this interrogation should be performed automatically, this process can be started by pressing
the Read inputs cyclic start button.
To automate the processes, command sequences in the form of action lists can be stored on the reader. These are
triggered by a change of ank at the selected input on the respective GPIO card.
The action lists consist of a sequence of individual actions, which can be loaded in the form of an ML le in
the context menu of the Action item under the Action list. This le can be created or edited manually, using
a text editor. The syntax can be seen from the example. The individual actions can be selected from the
functions described in section 7 “Reader conguration”.
The le is saved in the folder “..\My les\Kathren Sachsen GmbH\ReaderStart v2\” and can be edited using a text editor.
In order to use the newly added actions in the program, the le must be reloaded into the context menu.
The action list must be selected from the drop-down list. The desired actions are now selected individually
from the action list and added to the action list in the sequence in which they are to be executed. Pressing the
Clear action list button clears down the selected list.