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
SeaI/O-463 50-Pin Header Connectors
The SeaI/O-463’s 96 digital I/O channels are accessed via four industry-standard 50-
pin header connectors. Each header provides 24 bits of digital I/O divided into three
eight-bit ports. Each port may be individually configured via software command as
an input or an output.
You will need to open the SeaI/O-463’s enclosure to access the four header
connectors: P2, P3, P4, and P5. The connector designators are silk-screened onto the
PCB for easy identification. Once cables are connected to the headers, route them
through the opening in the front of the enclosure, attach the included strain-relief
bracket to secure the cables and reassemble the enclosure. Refer to the ribbon cable
installation instructions included with the SeaI/O-463.
Each of the four 50-pin connectors has the following pinout, which is compatible
with a wide variety of industry-standard solid-state relay racks:










