Owner's manual
Table Of Contents
- Table of Contents
- Introduction
- SeaI/O Hardware Description
- SeaI/O Base and Expansion Modules
- SeaI/O Module Common Features
- SeaI/O Configurations & Specifications
- 410 Series – 16 Optically Isolated Inputs/16 Reed Relay Outputs
- 420 Series – 16 Optically Isolated Inputs/8 Form C Outputs
- 430 Series – 32 Optically Isolated Inputs
- 440 Series – 32 Reed Relay Outputs
- 450 Series – 16 Form C Relay Outputs
- 462 Series – 96 Channel TTL DB-78
- 463 Series – 96 Channel TTL 50-Pin
- 470 Series – 16 A/D, 2 D/A, 8 24V Outputs, 8 Isolated Inputs
- 520 Series – 8 Optically Isolated Inputs/8 High-Current Form C Outputs
- Power Options
- Hardware Configuration
- Wiring Options
- Mounting Options
- Accessories
- SeaMAX Application Suite
- SeaI/O Architecture
- Device Address Configuration
- Configuring the “Base” SeaI/O Module
- Configuring N-Series Expansion Modules
- Configuring an Ethernet Module (E-Series)
- MaxSSD Configuration & Diagnostics Utility
- Communicating Via Modbus
- Extended Modbus Command Set
- Developing Custom Applications Using SeaMAX API
- SeaMAX API
- Non Object-Oriented SeaMAX API
- IOCTL Calls and Functionality
- Using SeaMAX with Visual C++ 6.0
- Using SeaMAX with Visual Basic 6.0
- Example SeaMAX Programming Tasks
- CEthernet API
- Appendix A – Data Encoding Tables
- Appendix B – CRC Calculation
- Appendix C – SeaIO Model 462/463 Holding Register Set
- Appendix D – SeaMAX Data Types and Structures
- Appendix E – Troubleshooting
- Appendix F – How To Get Assistance
- Appendix G – Compliance Notices
- Warranty
© Sealevel Systems, Inc.
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SeaI/O User Manual
(0x47) Set Communication
The Set Communication command can be used two different ways. The first method
is a direct one-to-one communication with a single SeaI/O module. This requires a
Get Config request to obtain the Magic Cookie byte. However, to easily change the
communication parameters of multiple SeaI/O modules at the same time, the Set
Communication operation can be broadcast to all daisy-chained modules. A sample
transaction is shown with an assumed Magic Cookie byte of 0xCA, which is only
required for one-to-one communication.
Request Response
Field Name (Hex) Field Name (Hex)
Function
47
Function
47
Baud Rate
0A
Baud Rate
0A
Parity
00
Parity
00
Magic Cookie
CA
Magic Cookie
CA
Upon a successful Set Communication operation, the SeaI/O module will respond
with the same packet it received. An exception can be generated if one of the
following conditions occurs:
• The baud rate is not within the range [1, 0A] (Hex)
• The parity rate is not within the range [0, 2]
• The Magic Cookie is invalid (one-to-one communication only)