Sharp Projector Control Command

Table of contents

  1. Overview
  2. Command Details
  3. Base Model Type Request
  4. Sample Response
  5. References

Overview

Sharp NEC Display Solutions projector control commands use TCP port 7142 to send structured byte sequences for controlling and monitoring projectors. The protocol supports functions such as power, input selection, picture adjustments, mute, and status queries, with corresponding responses returned by the projector.

Command Details

commands and responses are expressed as follows

20h 88h <ID1> <ID2> 0Ch <DATA01> - <DATA12> <CKS>
   
Command/response A series of strings enclosed in a frame represents a command or response (inhexadecimal notation).
Parameter A character string in italic enclosed in brackets represents a parameter. For information about the parameters that are common to the control commands (ID1, ID2, CKS, LEN, ERR1, and ERR2), see “2.2 Parameters” (page 10). For information about those parameters whose content varies from command to command (DATA), see the description of the relevant command.
Parameter name Description
Control ID - ID1 The value of the “control ID” set for the projector is used
Model code - ID2 This varies depending on the model in use. (refer to pj-controlcommands-appendixes.pdf)
Checksum The checksum is calculated as - 1) Add all preceding bytes of data. 2) Use the value of the low-order one byte (eight bits) of the addition result obtained in ① as the checksum.
LEN This indicates the data length of the data part (DATA??) following LEN (inbytes).
DATA?? This varies depending on the character string stored.
ERR1/2 The cause of an error is represented by a combination of error codes.

Base Model Type Request

Response

| 20h BFh <ID1> <ID2> 10h 00h <DATA01> - <DATA15> <CKS> | |-|

Item Description
DATA01 - 02 Base model type
DATA03 - 11 Model name (NUL: termination character string)
DATA12 - 13 Base model type
DATA14 - 15 Reserved for the system

Sample Response

BASE MODEL TYPE REQUEST/RESPONSE

0000   00 bf 00 00 01 00 c0    .......

0000   20 bf 01 20 10 00 ff 22 4d 33 32 33 57 00 00 00    .. ..."M323W...
0010   00 06 12 00 00 85                                 ......

References

pj-control-command-codes.pdf
pj-controlcommands-appendixes.pdf