You use the override display to manually override digital outputs as well as analog outputs.
There are basically two control modes:
Hand mode
Auto mode
You place an output in Hand mode when you want to manually override the output. Programs have no effect on the output in this mode. The meaning of the Hand mode for the different output types are described below.
You switch back to Auto mode when you want to remove the manual override. In Auto mode, programs control the output.
The Output Override screen is similar for the different output types. For more information, see Output Override Screen .
Output override screen for a digital pulsed output
The Hand icon
In Hand mode, you can manually activate or deactivate a digital output by selecting one of the following options:
Hand On makes the output activated (on).
Hand Off makes the output manually deactivated (off).
In Hand mode, you can manually adjust the duty cycle value of a digital pulsed output.
In Hand mode, you can manually control a pair of tristate outputs by selecting one of the following override values:
On makes the first output active (on).
Off makes both outputs inactive (off).
-On makes the second output active (on).
I/O list screen showing override value -On for tristate output points DO1 and DO2
In Hand mode, you can manually adjust the duty cycle value of a pair of tristate pulsed outputs by selecting one of the following override values:
[Value] percent makes the first output active (on) in [Value] percent of the pulse period.
0 percent makes both outputs inactive (off).
-[Value] percent makes the second output active (on) in [Value] percent of the pulse period.
For example, if you select 10 percent, the first output is active (on) in 10 percent of the pulse period. If you select -10 percent, the second output is active (on) in 10 percent of the pulse period.
I/O list screen showing override value 10 percent for tristate pulsed output points DO1 and DO2