Barco ACTAS 2, Руководство пользователя

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Appendix B : Serial communication
B-3
5975636 ACTAS 2 170297
The slave will always return its address and the received
command to the master.
Master to slave :
RECORD
Slave to master :
ACK RECORD
For the block format
For a block return, it is the same as for the record format.
But the record is followed by the 209, 225 or 241 bytes
(208, 224 or 240 data bytes plus their checksum).
Master to slave :
RECORD
Slave to master :
ACK RECORD BLOCK
ACTAS SPECIFIC COMMANDS
Please note the reserved addresses as follows :
255 FFH reserved
254 FEH ACTAS Control Unit Address
253 FDH ACTAS Interface Address
252 FCH Host Computer Address
251 FBH Reserved Address
254...0 Projectors or other (e.g. RCVDS)
Below, commands used in writing the ACTAS software
are described.
READ_SOURCE..................
........................4AH
Purpose : ACTAS (Control Unit) asks HOST (the
host computer) or ACTAS Interface for
exact scan frequencies.
Request
ACTAS è HOST
or
ACTAS INTERFACE
Cmd Dat1 Dat2 Dat3 Dat4
4AH 00H 00H 00H 01H
(Remark : 01H in Dat4 indicates special answering
format as required by ACTAS )
Answer HOST è ACTAS
Cmd Dat1 Dat2 Dat3 Dat4
4AH f
H
h f
H
l f
V
h f
V
l
Dat1: f
H
h (kHz digits)
Dat2: f
H
l (2 digits after the decimal point
of the kHz value)
Dat3: f
V
h (Hz digits)
Dat4: f
V
l (2 digits after the decimal point
of the Hz value)
Example : 15.620 kHz / 50 Hz will produce the following
hex answer from
HOST : FC 4A 0F 3E 32 00 C5.
SET_INT_PATT.................. ..........................61H
Command similar to an already existing one in projec-
tor control.
Purpose : sets ACTAS Interface frequencies;
invokes no picture update.
Cmd Dat1 Dat2 Dat3 Dat4
61H f
H
h f
H
l f
V
Sync type
Dat1: f
H
h (kHz digits)
Dat2: f
H
l (2 digits after the decimal point
of the kHz value)
Dat3: f
V
(Hz digits)
Dat4: Sync type:
bit0 reserved (on / off)
bit1 separate / on G
bit2 reserved (big / normal)
bit3 reserved (HDTV / normal)
bit4 interlace (interlaced / non-interlaced)
CONTROL_ACTAS............. .........................62H
A command code already exists as CONTROL_IRIS
and CONTROL_RCVDS , but will not interfere.
Purpose : specific programming of
ACTAS Interface functions.
1. Cmd Dat1 Dat2 Dat3 Dat4
62H Funct 00H 00H On/Off
Dat1 Dat4 function
00H - reserved
01H
1/0 projector and
ACTAS interface
answers come through / are
muted towards
HOST
2. Cmd Dat1 Dat2 Dat3 Dat4
62H funct 00H data 00H
Dat1 Dat3 function
00H 0..3
address block offset for
address table of config. nr. 0..3
IDENT................................ ...........................77H
Purpose : identify system for walls.
First use : VIP chassis.
Cmd Dat1 Dat2 Dat3 Dat4
77H Option 00H 00H 00H
Dat1 Options Dat2
0..7 (see RWI listing) 00H
8 disable answering to command 00H
with the “always listen” address
16 tells BGFX host where to put projector
the window (correlates address
projector’s RS232 address
with BGFX head address)
0 tells BGFX host where to projector
remove window address
(correlates projector’s RS232
address with BGFX head address)