Extron electronic MLC 52 manual Assigning user-defined functions to buttons

Serial Communication, cont’d

5. If you want to assign another command to the same button, select the next command you want to add to the button, then repeat step 4. The command appears beside the next number in the Current Button field.

For each MLC and IR 452 button, you can perform this procedure up to four times, or until the button’s four memory blocks are all assigned.

For IR commands, you can mix driver functions from different devices on the same button. For example, you can program a Mute On button on the remote control with a command to mute a Sanyo projector and another command to mute an NEC projector. You can also add IR commands to a button on which RS-232 commands have been programmed and vice versa.

Since a configuration can have only one serial driver at a time, you are not able to mix RS-232 commands for different devices on the same button.

Assigning user-defined functions to buttons

This tab provides an alternative way to edit or enter RS-232 codes (not IR). If you want to enter RS-232 commands that are not included the downloadable driver for your display device, or if there is no Extron driver for your device, you can enter codes in this section using hexadecimal or ASCII.

You cannot enter IR commands via the User Defined tab; this tab is available for RS-232 only.

To enter a user-defined command code for an MLC 52 or IR 452 button,

1.	Click on the button to which you want to add a command.
2.	In the Button Operations area, click on the User Defined tab.
3.	In the command entry field (the narrow space at the bottom of the User
	Defined tab), type your command code, using ASCII, hex, or a combination
	of both character types. The hex codes for your command appear in the
	larger space above the command entry field.

You must enter a % sign before each hex character to notify the MLC that the next code will be in hex format.

Do not enter spaces between characters.

An ASCII-to-hex conversion table is on page 5-51 for your reference.

In the following example, the Video button was selected, and the code VIDEO1%0D was typed in the command entry field. (The 0D command is a hex code for carriage return; it is preceded by %.)

Button Operations section containing a user-defined code

4. Click Add to add the command to the selected button. The words “User Defined” appear in the next available command slot in the Current Button field (the actual command and driver names do not appear).

5-34 MLC 52 Series MediaLink Controllers • Serial Communication