R U/L/H Series
User Guide, Rev. 00 (May 2015)
35
3.2.20
GPIO
Settings under GPIO tab in www configuration enable user to configure external input and output
GPIO ports. When switching tab to GPIO current pin states is read automatically into eight fields in
upper section of the webpage. In whole configuration the following convention is used: the
unchecked field represents low state and checked field represents high state. Successful read of
GPIO pins states is indicated by ,,OK'' status. In case of error ,,ERROR!'' is displayed. If pins state
update is needed, please click Refresh button.
To set initial states of output pins use checkboxes 11,12,13 and 14. They are set when the modem
is powered up and when the GPIO configuration is changed and saved.
Section GPIO events allows user to create unlimited number of events on which the state of output
pins will be changed. In order to create a new event, click New button and then fill out all necessary
fields. The identifier is used to distinguish events. It can be any character string. The event type
determines if an event is executed only once (One time) or with determined frequency (Regular).
In case of one time event enter UTC date and time of the event. Make sure that real time clock is
set correctly on the device. In case of regular event specify time interval between two [consecutive]
event executions. Finally choose pin or pins used for the event and what action should be taken
(setting high state, setting low state or switching states). Let's assume pins 11,13 was selected and
action set to ,,Set HIGH state''. As result at entered time of the event high state will be set on pins
