Christie 130-002103-01, User Manual

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Serial Command Reference
Matrix StIM™ WQ/SIM WQ User Manual 99
020-100883-01 Rev. 2 (06-2013)
Gamma Correction (GAM)
General Purpose Input/Output (GIO)
GAM
CONTROL GROUP:
Preference
SUBCLASS:
Power Up
ACCESS LEVEL:
Operator
Description
The Gamma Correction control is used to correct ambient conditions affecting the display. The Gamma control
affects the shape of the curve determining what grey shades are displayed for a given amount of signal Input
between minimum (black) and maximum (white). This is done by performing a linear transform from the user
selected gamma setting. The normal point is 0, meaning the selected gamma table is used unaltered. If there is a
lot of ambient light, the image can become washed out, making it difficult or impossible to see details in dark
areas. Increasing the gamma correction setting can compensate for this by transforming the curve towards a
gamma of 1.0. Decreasing the control shall transform the gamma towards a gamma of 3.0.
See
Base Gamma Curve (BGC)
on page 93.
See
Base Gamma Function (BGF)
on page 93.
See
Base Gamma Slope (BGS)
on page 94.
Subcode
<No Subcode > Description of Use
Set the interpolated gamma level
.
Examples:
(GAM 100) Set gamma to 1.0 curve.

(GAM?) Returns current gamma curve.
GIO
CONTROL GROUP:
Config
SUBCLASS:
Power Down
ACCESS LEVEL:
Advanced
Description
Control or monitor the state of the General Purpose Inputs and Outputs.

The strings have one character for each hardware connector pin, and from left to right, correspond to the pin
numbers 2,3,4,6,7,8,9. (Pin 1 is 12V and Pin 5 is Ground - they cannot be read, set or configured).
A low state (or value of 0) will be read on an Input pin if the circuit attached to the pin is open. A high state (or
value of 1) will be read on an Input pin if the circuit attached to the pin is shorted to ground. This corresponds to
a switch closing event.
Subcode
CNFG Description of Use
Set the Direction for the individual pins to Inputs or outputs.
STAT
Get the state of all Inputs, or set the state of all outputs.
Examples:
(GIO+STAT?) Get status of all the Inputs. Returns (GIO+STAT!"0000000") - All Inputs are low.

(GIO+STAT "1x01000") Set status of the GPOs - 2 high, 3 no change, 4 Low, 6 High, 7 Low, 8 Low, 9 Low. 
(GIO+STAT "hxxlxxx" 500) Set status of the GPOs - 2 Pulse high, 6 Pulse Low. Use interval of 500 ms for each. 
(GIO+CNFG "IIOOOIO") Set pins 2, 3 and 8 to Input, 4, 6, 7 and 9 to Output.