17
TOP VIEW
There are two buttons in the top of the PowerXP controller: MIN and MAX.
•
MIN (-)
– while holding
turns the waveplate to a minimum attenuation
•
MAX (+)
–
while holding
turns the waveplate to a maximum attenuation
•
HOME
- holding both MIN/MAX buttons
for 3 sec
. moves attenuator to home position
There are 4 LED indicators:
•
Power –
indicates power from USB connection with PC
•
Status:
•
If blinking slowly (1 blink in 1 sec.) – need to set homing position
•
If blinking fast (3 blinks in 1 sec.) – the waveplate is rotating
•
If iluminating continuously – PowerXP is homed, the movement is stopped
•
MIN –
the PowerXP is at its minimum attenuation
•
MAX –
the PowerXP is at its maximum attenuation
Figure 12.
Top view of PowerXP Controller.
6. Serial and Ethernet Communication
6.1 Serial protocol description
When using “RS232” (or “USB”*) port all communication between controller and PC (or other
device) is established by using RS232 communication protocol.
