Appendix A • RS-232 Programming
Extron • User’s Manual • RGB 320 Switching Interface System
A-2
Command/Response Table
Definitions and abbreviations:
¿
= CR/LF
= input #1 through 6, or 0 = input disconnected
= 0 thru 255 (enhancement control range)
= xxx.xx (frequency in Hz or kHz)
= 0 thru 9 (10 steps of audio gain)
= numeric value -15 thru +09
= controller software version to 2nd decimal place
= 0 or 1, 0 = Off, 1 = On
= 15 thru 1 (15 steps of audio attenuation)
·
= space (If indicated, the space must be there.)
A
h
= this is a hexadecimal number
ph = phase: Hph - horiz shift; Vph - vert shift
rt = rate: Hrt - horiz frequency rate; Vrt - vert frequency rate
mt = mute: Amt - audio mute
brt = brightness - video level
Command from Host
Host Code
Resp
Examples
Description
ASCII HEX
to Host
Com. Response
Action/Explanation
Select input channel (aud & vid)
!
h
21
h
C
¿
5!
C5
¿
Select input channel #5(aud & vid)
Select input channel (audio only)
$
h
24
h
A
¿
3$
A3
¿
Select audio input channel #3
Select input channel (video only)
&
h
26
h
V
¿
4&
V4
¿
Select video input channel #4
Set hor. shift value (Hph) to
H
h
48
h
Hph
¿
39H
Hph039
¿
Set horizontal shift value to 39
Increment horizontal shift value
{H
7B
h
48
h
Hph
¿
{H
Hph040
¿
Increase horizontal shift by 1
Decrement horizontal shift value
}H
7D
h
48
h
Hph
¿
}H
Hph039
¿
Decrease horizontal shift by 1
Set vert. shift value (Vph) to
/
h
2F
h
Vph
¿
57/
Vph057
¿
Set vertical shift value to 57
Increment vertical shift value
{/
7B
h
2F
h
Vph
¿
{/
Vph058
¿
Increase vertical shift value by 1
Decrement vertical shift value
}/
7D
h
2F
h
Vph
¿
}/
Vph057
¿
Decrease vertical shift value by 1
Note:
A higher value moves the image downward, and a lower value moves it upward on the screen.
Set video level value (Brt) to
Y
h
59
h
Brt
¿
32Y
Brt032
¿
Set video level value to 32
Increment video level value
{Y
7B
h
59
h
Brt
¿
{Y
Brt033
¿
Increase video level by 1
Decrement video level value
}Y
7D
h
59
h
Brt
¿
}Y
Brt032
¿
Decrease video level by 1
Audio un-mute
z
7A
Amt0
¿
z
Amt0
¿
Mute is off.
Audio mute
Z
5A
Amt1
¿
Z
Amt1
¿
Mute is on.
Set channel gain (Aud) to
G
h
47
h
Aud
¿
7G
Aud+07
¿
Set audio value to +7 dB
Set audio channel attenuation
g
h
67
h
Aud
¿
1g
Aud-01
¿
Set audio value to –1 dB
Increment audio level value
{G
7B
h
47
h
Aud
¿
{G
Aud+08
¿
Increase audio level by 1
Decrement audio level value
}G
7D
h
47
h
Aud
¿
}G
Aud+06
¿
Decrease audio level by 1
Information request (Same as I)
i
69
h
V
·
A
·
Amt
·
Hph
·
Vph
·
Brt
·
Aud
·
Hrt
·
Vrt
·
Max6
¿
Information request
I
49
h
V
·
A
·
Amt
·
Hph
·
Vph
·
Brt
·
Aud
·
Hrt
·
Vrt
·
Max6
¿
Where: V=video channel; A=audio channel; Amt=aud mute; Hph = horiz shift; Vph=vert shift; Max=highest channel#
Response example: V2
·
A2
·
Amt0
·
Hph000
·
Vph255
·
Brt127
·
Aud+03
·
Hrt015.75
·
Vrt059.93
·
Max6
Request part number (Same as N)
n
6E
h
N60-232-01
¿
(60-232-01 = RGB 320)
Request part number
N
4E
h
N60-232-01
¿
(60-232-01 = RGB 320)
Query software version (Same as Q) q
71
h
QVER
¿
q
QVER1.23
¿
(1.23 is example only)
Query software version
Q
51
h
QVER
¿
Error Response
Code
Description
Invalid channel number
E01
¿
Input number requested could be greater than 6 (too large).
Invalid command
E10
¿
Command code not recognized.
Invalid value
E13
¿
Specified number could be out of range. (e.g., set video level to 256)
Busy
E16
¿
Adjustments are being made from an RGB 322/324/340 buffer.
