Wavelength Electronics LFI-3751, User Manual

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Chapter 4 - Remote Interface Reference
Diagnostic - Lamp Control
Diagnostic - Lamp Control
•
The [LAMP CONTROL] command tests whether the LEDs or 7 segment
displays are properly operating.
•
Six test states are provided. The following table details the structure
of the characters in the data field. Only one test state is allowed
per
Command Packet. For example, you can turn on the 7 Segment
Display with one Command Packet and the Status LEDs with a second
Command Packet .
•
For example, to turn on an instrument’s Unit of Measure & Shift LEDs,
send the following Command Packet.
Write
!000.1002F
(Turns on Unit of Measure & Shift LEDs])
•
Once the Command Packet is executed, the test state will be repeated
until the instrument is returned to normal operation.
•
To return the instrument to normal operation, either turn off the power or
send a Command Packet with a ‘-’ in Character 7.
Char 7 = Sign Char [‘+’ = manual, ‘-’ = automatic]
Char 6 = Sequence Lamps, Sound Beeper [0 = OFF, 1 = Lamp ON]
Char 5 = All Lamps On [0 = OFF, 1 = Lamp ON]
Char 4 = 7 Segment Displays [0 = OFF, 1 = Lamp ON]
Char 3 = Decimal Point
Char 2 = Unit of Measure & Shift LEDs [0 = OFF, 1 = Lamp ON]
Char 1 = Status LEDs [0 = OFF, 1 = Lamp ON]
Char 0 = Output ON LED [0 = OFF, 1 = Lamp ON]
RS-232
Commands Discussed:
[LAMP CONTROL]