More About User Assignable Mode
The MCS Controller normally powers up in User Assignable mode. The expression, “local control on” simply means that you can push a button and generally expect its LED to turn on.
The LED can be assigned by the user to be either momentary, or latched.
Momentary means the LED is lit only while the button is pressed. It turns off when you release the button.
Latched means that the LED turns on with the first button press, and then turns off with the second button press.
More About Special Mode
The MCS Controller normally first powers up in User Assignable mode. For Special Modes to be engaged, the host system has to have been specifically developed to support Special Mode. Assuming that two way communication is established, when the host system is launched, it sends a command into the MCS, which switches it into Special Mode.
The host system then determines what appears in the LCD and LED displays, and what each control does.
The expression “local control off”, simply means that the buttons are no longer “tied to” their LEDs. Pressing a button does not necessarily turn on the LED.
Rather, pressing a button sends a command to the host system. The host system then is responsible for sending a command back into the MCS controller, to light up the LEDs.
That way, depending upon the mode of the host system, the host system may cause an LED to appear to be controlled by the switch.
23