SIM2 HT-300-E Link Owners manual

HT300 E-LINK

DLP™ VIDEO
PROJECTOR

RS-232C
CONTROL
SPECIFICATIONS

Document Revision 1.1 (14 March 2006)

K

S

RS-232C CONTROL SPECIFICATION

SIM2 HT300 E-LIN

Table of Contents

1. INTRODUCTION 3

2. CONNECTION 3

3. COMMUNICATION PROTOCOL 4
HEADER 4

PAYLOAD 4

4. COMMANDS 5
REMOTE CONTROL KEYCODES 5

OPERATION CODES 7

5. EXAMPLES 11

6. WARNINGS 12

Revision History:

Revision Date Software Version Description of Change

1.1 14 March 2006 2.39.14 L or higher

1.0 14 October 2004 2.39.14 L or higher Initial ve rs ion.

F1 and F2 codes added to ‘Remote
control keycodes’ section and Zoom and
Focus codes moved t o ‘Di r ect access
codes’ section.

2

K

S

RS-232C CONTROL SPECIFICATION

SIM2 HT300 E-LIN

1. Introduction

This document describes the communicati on and data formats used to control SIM2 HT300 E-LINK projector
via RS-232C port.

2. Connection

Switch off your Personal Computer and Projector before connecting RS 232C cable.
Use a standard serial cable with 9 pin female to the Personal Computer and 9 pin male to the Projector: pin 2
connects to pin2, pin 3 to pin 3 and pin 5 to pin 5.
SIM2 HT300 E-LINK RS-232C Port is described as follows.

SIM 2 HT300 E-LINK RS-232C Control Port:

D-SUB 9-pin

(female)

51

96

Pin No Signal Definition

1 N/A Not used
2 TD Transmit data
3 RD Receive data
4 N/A Not used
5 GND Ground
6 N/A Not used
7 N/A Not used
8 N/A Not used
9 N/A Not used

Switch on the Personal Computer and, after start up, switch on the Projector.
Load a suitable communication software onto your Personal Computer, and set the Serial Port Parameters as

shown below.

Communication Parameters:

Parameter Value

Transfer Rate 19200 bps
Data Bits 8
Parity Bit None
Stop Bit 1
Flow Control None

Set Send Mode and Read Mode to HEX.

3

K

S

RS-232C CONTROL SPECIFICATION

SIM2 HT300 E-LIN

3. Communication Protocol

The communication protocol is packet oriented. Packets consists of Header and Payload.
There are two types of packets: Event and Operation.

The packet header size is fixed (7 bytes), while the packet payload type and content varies based on the type
of packet: Event payload size is 6 bytes, while Operation payload size is 25 bytes.
The entire packet size is variable, being the sum of the fixed-size packet header and variable-sized packet
payload: Event packet size is 13 bytes and Operation packet size is 32 bytes.

Each packet received by the projector is acknowledged with a return code:

06: Acknowledged with no error

-

15: Acknowledged, but an error has occurred.

-

Header

All Packets use the same Packet Header format.
The Packet Header size is fixed at seven bytes.

0xEFBE is a fixed value that is used to insure packet alignment if there are partial packets received or byte
lost. The ls-byte of the word 0xBE is sent first, then the ms-byte 0xEF.

The Packet Type is a number (a byte in length) that defines the type of data in the packet.
The Packet Payload Size is a number (two bytes) that defines the size of the payload portion of the packet.

For a given Packet Type, Packet Size is fixed.
The Packet Checksum (two bytes) is the CRC value for the entire packet (Header and Payload).

0 1 2 3 4 5 6

BE EF

Packet Type Packet Payload Size Packet Checksum (CRC)

Payload

The packet payload format depends on the packet type.
The Event packet payload size is 6 bytes, while the Operation packet payload size is 25 bytes.

Event Packet Format:

0 1 2 3 4 5

Event

Operation Packet Format:

0 1 2 3 4 5 6 7 8 9 10 11 12

Op Type Op ID

13 14 15 16 17 18 19 20 21 22 23 24

00 00 00 00 00 00 00 00 00 00 00 00

00 00 00 00

00 00

Op Target

4

00 00

Op Value

00 00