37
Embedded Web Server 12
GPIO Settings Web Page
The GPIO Settings page shows the current configuration of the 10 GPIO
ports on the rear panel mounted GPIO connector. The functions, inputs and
states that control the output relay are also set here.
Fig 12-19: GPIO Settings Web Page
GPIO Select
– This drop down list selects the GPIO port to view and change
settings.
Type
– This option selects whether the selected GPIO port is an input, an
output or whether it is disabled. Ports configured as inputs are active low
and they have a weak internal pullup. Ports configured as outputs are open
collector driven and are therefore active low.
Input Function
– This option selects the required function that the selected
GPIO input controls. GPIO inputs can be set to control a local function and
a virtual GPIO output if required. If no local function control is needed, but
control of a virtual GPIO output is required, select Virtual GPO Only. The
assignment for which GPIO input triggers a virtual GPIO output is made on
the virtual GPIO settings page. This option is only available when the type is
set to input.
Input Action
– This option selects the operational mode of the selected
GPIO input. In momentary mode, the selected function is active whilst
the input is asserted low. In latching mode, a separate active low pulse is
required to enable and disable the selected function. This option is only
available when the type is set to input.
Output Trigger
– This option selects the function that triggers the GPIO
output. GPIO outputs can be triggered by a local function, a virtual GPIO
input and an Ember+ consumer if required. If a local function trigger is not
needed, but a virtual GPIO input or Ember+ consumer trigger is required,
select Virtual GPI Only or Ember+ Consumer Only. The assignment for
which virtual GPIO input triggers a GPIO output is made on the virtual GPIO
settings page. This option is only available when the type is set to output.
Relay Trigger
– The output relay, which provides both normally open and
normally closed contacts on the GPIO connector on the rear panel, can be
triggered by multiple functions, inputs and states. When any of the selected
triggers become active, the relay is switched on. To select multiple triggers,
click on the required options whilst holding down the Ctrl key on the
Содержание AVN-TB6
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