MC-Basic:SYSTEM.LED

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This property controls (turn on/off) the three general purpose LEDs. If SYSTEM.LED is qualified by a <value>, then only that LED is written and the value must be 0 or 1. When queried, the return value corresponds to the current state of the LED(s).

Syntax

Sys.Led{.<led number>} = <value>

System.Led{.<led number>} = <value>

?Sys.Led{.<led number>}

?System.Led{.<led number>}

Availability

Version 3.0 and higher; PCI and Standalone only

Type

A query returns a Long value.

Range

<led number>: 1 to 3
<value>: 0 to 7

Scope

Configuration, Task or Terminal

Limitations

• When setting the LEDs, the property takes only a Long value
• Not supported in EtherCAT system

Examples

System.LED = 5                     'LED #s 1 & 3 are turned ON, LED # 2 is turned OFF

System.LED.1 = MyVar         'The variable 'MyVar' is written to LED # 1. 'MyVar' must have a value of 0 or 1 only.