7
that function associated with the command has completed and that the controller is now
ready for another command. This echoing back of bytes sent by the remote computer to the
controller, and the return of an ASCII carriage return after a command’s task is complete, is
the same for both serial and USB interfaces.
4.1
Input Command Structure
The following table provides a complete list of all the remote commands for the Lambda SC.
Table 4-2. Remote control commands
Command Value
(Decimal, hexadecimal,
& binary)
Description
Open Shutter
170
AA
10101010
Sets the state of the shutter to open.
Close Shutter
172
AC
10101100
Sets the state of the shutter to closed.
Stop the Free Run
191
BF
10111111
Stops the Free Run if it is currently running.
Status
204
CC
11001100
Returns status of unit in two bytes
All Motors Power
On
206
CE
11001110
Instruct the controller to power on all motors.
All Motors Power
Off
207
CF
11001111
Instruct the controller to power off all motors.
Fast-mode Shutter
220
DC
11011100
Sets the shutter to fast mode.
Soft-mode Shutter
221
DD
10111011
Sets the shutter to soft mode.
Neutral Density-
mode Shutter
222 + 1 – 144
DE + 01 – 90
10
00000001 - 10010000
Sets the shutter to neutral-density mode. Second
byte contains a value of 1 through 144 indicating
the number of microsteps.
Transfer to On Line
238
EE
11101110
Puts controller on-line
LAMBDA SC USB INSTALLATION & CONFIGURATION – REV. 1.03 (20080617)
