Identify Unit ID, POWER-UP SUB1 U0/U1, Memory

MULTITASKER

7.2 MT101-114/115/117 OPERATION

This section describes the programming and control functions for the MT101-114,MT101-115,and MT101-117. The MT101-114has the same programming capabilities as the MT101-115/117with the exception of the key and LED functions.

On the MT101-115/117, the front panel uses 36 programmable keys to control plug-in cards. Each of the 36 keys has five states. A total of 180 subroutines are available to perform different functions based upon each key's state.

IDENTIFY UNIT ID

The [IDUi] and [IDU] commands can be used to locate a specific unit on the RS-232 bus. See the [IDUi] and [IDU] commands for details.

POWER-UP SUB1 (U0/U1)

SUB1 is always executed at power-up or on the reset command, [RES]. Typically, SUB1 is used to place the system cards to default settings. See the {WRS} command for programming details.

KEY PROGRAMMING

Each key may be programmed to execute one subroutine for each of the five key states. See the {WRK} command for details.

	State 1	Key is pressed and LED is OFF.

	State 2	Key is pressed and LED is ON.

	State 3	Key is pressed and LED is FLASHING

	State 4	Key is Pressed and Held for 2.5 sec.

	State 5	Key is Pressed and Held for 2.5 sec
	State 5	during power-up.
		during power-up.

MATRIX KEY CONVENTIONS

The front panel is designed to use the center group of keys for Matrix card input and output selections.

Input Selection	= Keys 13-28
Output Selection	= Keys 29-36
Card Selection	= Keys 7-12

Using these conventions, the LEDs will flash automatically showing each connection after a completed input-to-output command has been issued. The user should NOT issue LED commands to these LEDs during these sequences.

MEMORY

The memory is used to save key and subroutine programs. It is non-volatile and has a storage capacity of 64KB. The only size restriction of an individual subroutine is that of overall available memory.

SAVING CARD CONFIGURATIONS

Commands used for MultiTasker cards such as [ON], [OFF], and [IO] that end in "S" will be saved to the memory of each card. Commands not ending in "S" will be executed but not restored when the system is reset or powered off, and then on again.

SUBROUTINES AND FUNCTION TYPES

The subroutine for a key may be programmed to execute a complete function "I1O2C3" or a portion of a function. As an example, matrix functions will use one key to select the input number, "I1", another key to select the output number, “O2", and a final key for the group/card ID, “C3”. See the {WRS} command for further details.

Complete and incomplete functions mean two different types of subroutines. Subroutines with complete functions contain one or more stand-alone functions which are all executed with a single key press. Subroutines with matrix functions require two or more keys to be pressed to complete a single executable function.

400-0402-003