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
For high-current, high-voltage applications:
IDC 50 to IDC 50 Pin Ribbon Cable (Item# CA167)
− 40” cable connects the SeaI/O-463 to solid-state relay racks equipped with
50-pin header interface.
IDC 50 to IDC 50 Pin Ribbon Cable (Item# CA135)
− 40” cable connects the SeaI/O-463 to solid-state relay racks equipped with
50-pin edge connector.
Solid-State Relay Racks:
• Quad six position relay rack (Item# PB24HQ)
− Relay rack can accept up to six QSSRs for a total of 24 channels.
Features a 50-pin header connector for easy interface via 50-
conductor ribbon cables.
• Quad four position relay rack (Item# PB16HQ)
− Relay rack can accept up to four QSSRs for a total of 16 channels.
Features a 50-pin header connector for easy interface via 50-
conductor ribbon cables.
Quad Solid-State Relay Modules:
• AC Input (Item# IA5Q) – Provides 4 channels of discrete I/O interface to
monitor AC inputs up to 140V @ 10mA.
• DC Input (Item# IB5Q) – Provides 4 channels of discrete I/O interface to
monitor DC inputs from 3.3V to 32V.
• AC Output (Item# OA5Q) – Provides 4 channels of discrete I/O interface to
control AC outputs up to 140V @ 3A.
• DC Output (Item# OB5Q) – Provides 4 channels of discrete I/O interface to
control DC outputs up to 60V @ 3A.
Simulation/debug module (Item# TA01)
− Module simulates the operation and load characteristics of a standard 24-
channel relay rack. An LED corresponding to each port bit illuminates to
indicate state. Eight position DIP-switches are used to generate input status
changes.










