Digital Output Configuration
To configure the I/O channel as digital output, make sure that
“Digital Input/Output” is selected in the Mode field on
the External I/O Mode Configuration page ( Figure 65). After saving the changes, click Digital Output Configuration.
The default parameters for the digital output should suffice for normal operation, but if you want to configure the
output to have a fail-safe indication you need to configure the following parameters.
Figure 67 Digital Output Configuratio
Name
You can enter a descriptive name for the digital output, or use the default. The name
can be up to 30 characters, including spaces.
Fail-safe Time (sec)
The time before the output actives its fail-safe state if it does not receive an update or
a COS message from the sender. If the fail-safe timer counts down to zero, the output
will be set to the Fail-safe State depending on how it is configured. If Fail-safe State
option is selected, the output will be on; if the Fail-safe State option is deselected, the
output will be off. When an update or a COS message is received, the fail-safe timer
is restarted.
We recommend that the Fail-safe Time be configured for a little more than twice the
update time of the input that is turning it on. That way the output will reset if it fails to
receive two update messages.
Fail-safe State
The state to which the output will be set if the Fail-safe Time countdown elapses.
If the Fail-safe State checkbox is selected (enabled), the LED and the digital output
will be turned on.
If the Fail-safe State checkbox is deselected (disabled), the LED and the digital output
will be turned off.
Save and Activate
Changes
Save to non-volatile memory and restart to activate changes.
Digital Input Configuration
To configure the I/O channel as digital input, make sure that
“Digital Input/Output” is selected in the Mode field
on the External I/O Mode Configuration page (Figure 65). After saving the changes, click Digital Input
Configuration.
Figure 68 Digital Input
Configuration
