Chapter 10. Drawings, Schematics, and Pin Assignments
EQ-77X LDLS® Operation Manual
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10.5 Serial Interface Commands
The RS-485 serial interface is provided for user adjustment of laser operating power, in order to increase or decrease
light output. The
LAMP NAME
lamp head is shipped with the laser power set to a factory default value of 100% of full
scale power. Laser power can be increased or decreased in increments of 0.5% of full scale. The following describes
the serial commands and their functions.
Commands consist of a single ASCII character, case-sensitive. This can be transmitted to the
LAMP NAME via a
terminal emulation program, or the user's control system. Response from the
LAMP NAME will be a string of ASCII
characters, format depending on the command issued.
The following table describes the serial commands and their functions.
Command Character
Function
Reply from
LAMP NAME
U
Increases the present laser power setpoint by 0.5%
of full scale
Power = XX.X%
D
Decreases the present laser power setpoint by 0.5%
of full scale
Power = XX.X%
Q
Queries the value of the present laser power
setpoint (in % of full scale)
Power = XX.X%
F
Resets laser power setpoint to factory default value
Power = XX.X%
B
Saves present settings to flash memory. This
command should be issued after the settings are at
their desired values. If not, changes will be lost if
power to the
LAMP NAME is interrupted.
Calibration data copied to FLASH
Memory.
H
Queries the bulb operating hours
XXXX.X hours
Z
Zeroes the bulb operating hours
Send 'z' within 10 sec. to confirm
z
(Confirm zero within 10 sec)
Bulb hours zeroed & flash saved
Serial Commands and Functions
Table 9.
