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Command with Address Specification

LX900 RS232 Codes-Expanded Technical Reference Information 10-1

020-000034-01 Rev 1. (03/08)

10 Command with Address Specification

10.1 Overview

Commands with address are used to remote control more than one projector through RS-232C by a computer.

The command with address is defined as a single command per line that starts with “A” and ends with carriage

return (0x0D). When a projector receives carriage return (0x0D), it starts decoding.

The address such as “A001” is prefixed to the Basic Serial Command or Expand Serial Command already

mentioned, e.g.:

• Functional Execution Command: “A001C05” [CR]

• Status Read Command: “A001CR0” [CR]

Projector has the function to set up its own address in Service mode.

• Initial setting value is “No.001”

• Available range of the value is “001” to “999”

It clears the data in the receive buffer in the following cases:

• When receiving LF (0x0A) or EOF (0x1A)

• When it takes more than one second to receive a single command. (Until receiving carriage return after the

reception of the first data)

It returns the response within 60ms.

10.2 Functional Execution Command with address

10.2.1 Format

The PC issues a command in the format below:

Commands with “FFF” as the address are valid to all projectors.

Command: string (Refer to Basic and Expand Serial Command)

The only projector with the appropriate address decodes the received command, and when it is ready to receive

the next command, it returns the response:

• [ACK] [CR]: When receiving Functional Execution Command (0x06, 0x0D)

• “ – “ [CR]: When the received data cannot be decoded

However, when the address is “FFF”, the projector executes the function but does not return the response.

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Christie LX900 Uživatelský manuál Strana 89