Analog Way Scan Vision VHX II - VHX480 - Manual (Page 13)

SCAN VISION VHX II ™ Chapter 7 : RS-232 PROGRAMMER'S GUIDE
PAGE 13
7-4. COMMANDS AND RESPONSES TABLE
The following table resumes all of the commands which are recognized as valid and the responses that will be returned to
the controlling device.
ASCII RESPONSE COMMAND TYPE VALUE
COMMAND DESCRIPTION MIN MAX DESCRIPTION
FRONT PANEL COMMANDS
C CMD FREEZE. Rd/Wr 0 65535 0 = unfreeze 1 = freeze.
P FLICK Anti-flicker adjustment Rd/Wr 0 2 0 = level 1 1 = level 2 2 = level 3
G HPOS Horizontal position. Rd/Wr 0 255
H VPOS Vertical position. Rd/Wr 0 255
I HSIZE Horizontal size. Rd/Wr 0 255
J VSIZE Vertical size. Rd/Wr 0 255
K ZHPOS Horizontal position (in zoom mode). Rd/Wr 0 255
L ZVPOS Vertical zoom position (in zoom mode) Rd/Wr 0 255
M ZHSIZE Horizontal size (in zoom mode). Rd/Wr 0 255
N ZVSIZE Vertical size (in zoom mode). Rd/Wr 0 255
O TSO Zoom mode selection. Rd/Wr 0 255 Please see value description (next section).
STATUS COMMANDS
? DEV Device type. Rd 65535 18 = VHX480.
@ UNIT Measures unity Rd 0 65535
D DHI Input line frequency. Rd Please see value description (next section).
E GRT Input frame frequency. Rd Please see value description (next section).
F TSY Input format. Rd Please see value description (next section).
A VERM Firmware version. Rd 0 65535
B VERR Firmware version. Rd 0 65535
7-5. VALUES DESCRIPTION
Values sent or received are in decimal. Depending on the command letter, the value can be used as a linear control (ex :
255I to set the horizontal size to the maximum) or as a set of bits (ex : F command with multiple controls). In this case, the
value must be converted in binary base to understand every bit action.
EXAMPLE : The controlling device receives the message TSY71 (F command)
Decimal value 71 = Binary value 0100 0111
71 = (128 x 0) + (64 x 1) + (32 x 0) + (16 x 0) + (8 x 0) + (4 x 1) + (2 x 1) + (1 x 1)
bit 0 = 1 means input signal detected.
bit 1 = 1 means positive H sync detected.
bit 2 = 1 means positive V sync detected.
bit 3, 4, 5 = 000 means H & V Separate sync detected.
bit 6 = 1 means non interlaced input signal detected.
bit 7 = 0 means signal compatible with the input range frequency.
• F command returns the input signal status.
bit 7
(128)
bit 6
(64)
bit 5
(32)
bit 4
(16)
bit 3
(8)
bit 2
(4)
bit 1
(2)
bit 0
(1)
0 = No signal detected.
1 = Signal detected.
xx0 = H&V Separate Sync. 0 = Negative H Sync.
x01 = Sync On Green (SOG). 1 = Positive H Sync.
011 = 1V Composite Sync. 0 = Negative V Sync.
111 = TTL Composite Sync. 1 = Positive V Sync.
0 = Interlaced signal.
1 = Non Interlaced signal.
1 = Signal incompatible with the input range frequency.