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27
Response data format (Visual Presenter PC)
All response data are sent in the ASCII code in correspondence to the parameters in the list of operation
commands.
S
T
X
Local
Lock out
E
T
X
Input
selection
Lighting
selection
30H30H 30H30H 30H
Status 0
Data format specifications
This command is executed in the form of 1-command/1 packet. The next command is not accepted until the previous
processing is completed.
- The communication command always starts with STX (Start of Text), and ends with ETX (END of Text).
- If the communication format or command name is wrong, NAK (Negative Acknowledgement) will be sent from
the Presenter as a result of failing to receive correctly.
- When the communication format is correctly received, the Presenter sends ACK (Normal Acknowledgement).
Transmission Command (PC Visual Presenter)
Each operation command is executed in ASCII code, and transmitted in a set of 7 bytes as follows:
S
T
X
E
T
X
Command(PC) Data
Parameter
S
T
X
E
T
X
V
56H
H
48H
D
44H
Version
Rom version
Transmission specifications
- Full duplex start-stop sync. mode
- Start bit : 1 bit
- Data bit : 8 bit
- Stop bit : 1 bit
- Parity bit : None
- X parameter : None
- Baud rate (Communication speed) : 9600bps
Connection
If the RS-232C cable is not correctly connected between the Presenter and the PC, no acknowledgement is transmitted.
Connect the RS-232C cable correctly, and fix it firmly with the connector set screws before the operation.
S
T
X
TV mode
switching
E
T
X
Monitor
output
selection
30H30H 30H30H
Status 2
30H 30H