Infocus PROXIMA C445 User Manual
IN42 / C445
RS-232C communication
Communication Configuration
To control this projector via RS-232, connect a null modem cable and set the control system serial port settings to match the following communication configuration:
Setting |
Value |
Bits per second |
19,200 |
Data bits |
8 |
Parity |
None |
Stop bits |
1 |
Flow control |
None |
Emulation |
VT100 |
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Command Format
All commands consist of 3 alpha characters followed by a request, all enclosed in parentheses. The request can be a read request (indicated by a “?”) or a write request (indicated by 1 to 4 ASCII digits).
A read request example: (AAA?) where (starts the command
AAA denotes the command ? denotes the read request) ends the command
A read command returns the range and the current setting, for example:
Function |
Command |
Response |
Brightness |
(BRT?) |
(96-160, 128) |
Volume |
(VOL?) |
(0-32, 0) |
Lamp Hours |
(LMP?) |
(0-32766, 42) |
A write request example:
(AAA####) where (starts the command
AAA denotes the command
#### denotes the value to be written (leading zeros not necessary)
) ends the command
Some commands have ranges, while others are absolute. If a number greater than the maximum range is received, it is automatically set to the maximum number for that function. If a command is received that is not understood, a “?” is returned. With absolute settings, “0” is off, 1-9999 is on. The one excep-tion is the Power command, where 0 is off and 1 is on.
To assure the projector can process a command, wait 3 seconds before enter-ing the next command.
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IN42 / C445
Write Command Examples
Function |
Command |
Response |
Brightness |
(BRT140) |
Sets the brightness to 140 |
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Power |
(PWRO) |
Turns power off |
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Power |
(PWRI) |
Turns power on |
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Error Conditions
Not all commands are supported for all projectors. If an unsupported com-mand is issued, the command will be ignored. If a command is received that is not understood, a ‘?’ character will be returned indicating the command was not understood.
Limitations
The projector cannot respond to commands coming in at a high-rate. There-fore, a delay must occur between commands to ensure that the command gets properly executed. To assure the projector can process a command, wait 3 seconds before entering the next command.
The Step column refers to increasing or decreasing the menu bar position since the On-screen Display is not an exact match of values. For example, Step 2 changes the data by 2 through the CLI (Command Line Interface). The menu bar is up (or down) by 1.
Function |
Com-mand |
Min |
Max |
De-fault |
Step |
About (Source Info) |
ABT at W |
0 |
1 |
n/a |
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0: n/a |
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1: enable |
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Active lris |
IRI at RW |
0 |
2 |
1 |
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0: Off |
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1: Presentation |
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2: Film |
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Aspect Ratio |
ARZ at RW |
0 |
2 |
2 |
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0: Native |
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1: 16:9 |
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2: 4:3 |
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Auto Image |
AIM at W |
0 |
1 |
n/a |
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0: n/a |
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1: enable |
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Auto Power |
APO at RW |
0 |
1 |
0 |
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0: disable |
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1: enable |
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Auto Source |
ASC at RW |
0 |
1 |
1 |
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0: disable |
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1: enable |
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Blank |
BLK at RW |
0 |
1 |
0 |
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0: off |
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1: on |
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