You can use a variable to control the appearance of a multi-state lamp.

A multi-state lamp can have up to 256 states. The maximum number of states that a multi-state lamp can have is determined by the state type and the data type of the monitored variable. The following table shows the maximum in each case.

		16-bit Variable	32-bit variable
State Type
	Value	256	256
	LSB	16	32

You need to specify the number of states for a multi-state lamp, and the number must not exceed the allowed maximum. You can set the appearance of a multi-state lamp for each of its states. At runtime, a multi-state lamp is displayed with the appearance settings corresponding to the state of the monitored variable. The state of the monitored variable is determined by the state type and value of the variable.

You can complete all the settings of a multi-state lamp in the Multi-state Lamp property sheet. This dialog box contains the following five pages. Some of the pages appear only when they are needed.

■ General
Described in Section 6.2.4.

■ Text
Described in Section 4.3.6.

■ Picture
Described in Section 4.3.7.

■ Visibility
Described in Section 4.4.6.

■ External Label
Described in Section 4.3.8.