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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
Related Manuals for Hatteland HD 24T21 D F Series
Summarization of Contents
Serial/Ethernet Communication (SCOM) Interface
Introduction to SCOM Interface
Overview of the Communication Control Interface (SCOM) and its purpose.
Serial Interface Configuration
Details on configuring the RS-232, RS-485/RS-422 serial interfaces.
Ethernet Interface Configuration
Details on configuring the Ethernet/LAN/Network interface.
Cables and Electrical Interface
Specifications for serial and Ethernet cables, and electrical signal standards.
Pin Out Assignments
Diagrams and pin assignments for 10-pin RS-422/RS-485 and 9-pin DSUB connectors.
Data Rates, Format, and Message Structure
Specifies data rates, serial format, and the overall SCOM message structure.
SCOM Message Protocol Fields
Details the ATTN, ADDR, LEN, IHCHK, DATA, and IDCHK fields within SCOM messages.
Message Commands and Queries (CMD)
Lists and describes available SCOM commands with their parameters and I/O types.
Operational Requirements
Defines requirements for serial message failure, periodic messages, and command queuing.
Unit Response and Addressing
Details unit responses, addressing, and handling of ACK/NAK messages.
Additional Commands
Notes that additional commands may be defined in the future.
Appendixes
Calculating Checksums
Explains the method for calculating IDCHK and IHCHK checksums.
Character Encoding Tables
Reference table for HEX, ASCII, and BIN values of characters.
Code Example
Provides a C# code example for implementing SCOM communication.
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