Carrier 50XJ064-104 LID Function Keys, Operative Keys, Numeric Keys, Operative USE Keys

CONTROLS AND FUNCTIONS

Using the Local Interface Display — The Local Interface Device (LID) is a CCN operator interface that gives the user the capability to view and modify all configuration and service data for the CC6400 control system. The LID also allows the user to override all point display and maintenance data.

MENU STRUCTURE — The LID operates on a hierarchy of four levels (menus).

The top level contains the LID’s major functions. Each function has a corresponding key on the LID. For an explana- tion of each function key, refer to Table 3.

The second level separates the major functions (items) into types with corresponding type numbers that can be used for quick access.

The third level gives the user the capability to access each occurrence of an item. For example, the application may require two DO (Discreet Output) — Analog Comparison algorithms. Thus, the CC6400 Controller would have two occurrences of the DO — Analog Comparison algorithm.

The fourth level gives the user the capability to access main- tenance and configuration data associated with the selected occurrence of the item.

DEFAULT SCREEN — Figure 5 shows the LID. The LID’s screen provides the user with the 24-character controller name and the controller’s current time, date, and alarm status. This screen appears when the LID is powered up and communicat- ing with the controller or there is no keyboard activity for 10 minutes.

KEYPAD AND DISPLAY — The LID consists of a keypad with 8 function keys, 4 operative keys, 12 numeric keys (0 to 9,., and -) and a two-line, alphanumeric liquid crystal display (LCD). Each line on the LCD can display up to 24 characters. See Fig. 5. Table 4 defines the purpose of the LID’s operative keys. Table 5 defines the purpose of the LID’s numeric keys.

Table 3 — LID Function Keys

OPERATIVE	USE
KEYS
	Status — gives access to maintenance
	values and configuration data for points.
	Alarm — gives access to maintenance
	and configuration data for alarms.
	History — gives access to maintenance
	and configuration data for history system
	functions.
	Service — gives access to maintenance
	and configuration data for service system
	functions.
	Setup — gives access to configuration
	data for setup system functions.
	Schedule — gives access to maintenance
	and configuration data for schedules.
	Algorithm — gives access to maintenance
	and configuration data for AO, DO, and global
	algorithms. It also gives access to BEST ++™
	custom programs.
	Edit — gives the capability to switch from
	Status mode to Edit (configuration) mode for
	the selected item.

LEGEND

AO — Analog Output

DO — Digital/Discreet Output

Table 4 — Operative Keys

OPERATIVE			USE
KEYS
			Clear — performs three operations:
	CLEAR		• Cancels a data entry before the user
			presses Enter, thus leaving the current
			value unchanged.
			• Returns a forced point to automatic
			control.
			• Redisplays the previous menu level.
			Enter — performs two operations:
	ENTER		• Selects the displayed item, thus displaying
			either its maintenance or configuration
			data, depending on whether the user is in
			the Status mode or the Edit mode.
			• Accepts the value entered in a configuration
			decision as new configuration data or as a
			force.
			Down arrow — displays the next configured
			item or decision. When the last configured
			item or decision is displayed, the LID
			re-displays the first configured item or
			decision. For example, when the user presses
			the down arrow key while viewing the last
			configuration decision of an algorithm, the LID
			re-displays the first configuration decision.
			Up arrow — Displays the previous configured
			item or decision.
		Table 5 — Numeric Keys
OPERATIVE			USE
KEYS
-			Numeric keys
			Performs two operations:
			• Separates items, such as an algorithm from
			its occurrence or hours from minutes.
			• Serves as a decimal point in numeric values.

Performs two operations:

•Negates the value of numeric keys.

•Clears current data entry value any time it is not the first key pressed during the data entry sequence.

VIEWING MODES — The user can view items in either the Status (maintenance) mode or the Edit (configuration) mode.

Status Mode — When the user first powers up the LID, it displays the CC6400 controller items in Status (maintenance) mode. The user may view the current value or status of an item in Status mode without actually logging on to the Controller. Knowing the current values or status of items can be useful when troubleshooting. For example, the user could determine if a point was forced.

NOTE: Not all items have maintenance data. If the item you select does not have maintenance data, the LID will display “No maintenance.”

Accessing Items in Status Mode — The user can access maintenance data in Status mode in two ways:

•Pressing the appropriate function key (i.e., ALRM ) once to access a category (i.e., alarms) and then continu- ing to press that key ( ALRM ) to scroll through all the items in that category (i.e., Limit Alarm, Set point Alarm, Discrete Alarm, First Out Alarm, Runtime Alarm, and Number of Starts Alarm). Press ENTER to display the first maintenance decision.

NOTE: Scrolling by repeatedly pressing the function key displays the name of all the items in that category, whether or not they are actually configured. Scrolling by pressing the up or down arrow displays only the configured items within that category.

8