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TECHNI CAL
Serial/Ethernet Communication Control Interface (SCOM)
Applies for Series X Maritime Multi Display Generation 1 (G1) (MMD):
Please visit www.hattelandtechnology.com for the latest electronic version of this manual.
MA NUA L
HD 12T21 xxD-xxx-Fxxx
HD 15T21 xxD-xxx-Fxxx
HD 17T21 xxD-xxx-Fxxx
HD 19T21 xxD-xxx-Fxxx
HD 24T21 xxD-xxx-Fxxx
HD 26T21 xxD-xxx-Fxxx
Technical Manual SCOM Series X G1
Updated: 02 Nov 2021
Doc Id: INB100018-4 (Rev 20)
Created: 6542/6784/363
Approved: 6644
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Table of Contents
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Summarization of Contents
Serial/Ethernet Communication (SCOM) Interface
Interface Overview and Configuration
Defines SCOM electrical interface, data format, and communication protocols for MMD units.
Communication Protocol Structure
Explains message format, ATTN, ADDR, CMD, LEN, IHCHK, DATA, and IDCHK fields.
Key Control Commands
Commands for setting backlight minimum/maximum, GDC brightness, and user brightness.
System Information and Status Queries
Commands for querying firmware versions, serial numbers, and sensor data.
OSD Control via MCC Command
Introduces the MCC command for remote OSD menu access and control.
MCC Commands: Display and System Settings
Covers MCC commands for Brightness, Contrast, Hue, OSD Mode, and Calibration.
Operational Requirements and Timing
Outlines requirements for message transmission, response times, and intermessage gaps.
Unit Response and Addressing
Explains unit responses to commands and address handling in RS-485 systems.
Appendixes
Calculating Checksums
Provides methods and examples for calculating IDCHK and IHCHK checksums.
Character Encoding Reference
Lists HEX, ASCII, and BIN values for characters and symbols.
Example Ethernet/TCP Code
Demonstrates SCOM package transmission using C# code example.
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