ViewSonic PJL9371 User Manual download pdf (Page 73)

PJL9371ViewSonic 68

RS-232C Communication (continued)

NOTE • Operation cannot be guaranteed when the projector receives an

undened command or data.

• Provide an interval of at least 40ms between the response code and any

other code.

• The projector outputs test data when the power supply is switched ON, and

when the lamp is lit. Ignore this data.

• Commands are not accepted during warm-up.

3. Response code / Error code

("h" shows hexadecimal)

(1) ACK reply : 06h

When the projector receives the Set, Increment, Decrement or Execute

command correctly, the projector changes the setting data for the specied

item by [Type], and it returns the code.

(2) NAK reply : 15h

When the projector cannot understand the received command, the projector

returns the error code.

In such a case, check the sending code and send the same command again.

(3) Error reply : 1Ch + 0000h

When the projector cannot execute the received command for any reasons,

the projector returns the error code.

In such a case, check the sending code and the setting status of the projector.

(4) Data reply : 1Dh + xxxxh

When the projector receives the GET command correctly, the projector returns

the responce code and 2 bytes of data.

1 2 ... 68 69 70 71 72 73 74 75 76 77 78 ... 86 87

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ViewSonic PJL9371 User Manual Page 73