Owner's manual
Configuring the “Base” SeaI/O Module 
Once the SeaMAX Software Suite has been installed successfully and you have 
decided which address (slave ID) method you intend to use, start by connecting the 
first SeaI/O module to your computer. This will be referred to as the “base” module. 
If you are chaining multiple SeaI/O modules together, only one SeaI/O module in the 
chain can be the “base”. All other SeaI/O modules connected to the “base” module 
are referred to as expansion modules. Multiple “base” modules can be directly 
connected to a host computer, but expansion modules must be connected (daisy 
chained) to a “base” module. 
NOTE: 
If you are configuring an Ethernet (E-series) or Wireless (W-series) 
SeaI/O module, skip ahead to the Configuring an Ethernet 
Module or Configuring a Wireless Module sections for specific 
information on installing those modules. 
For all other SeaI/O modules (U-series, S-series, or M-series), locate the COM port 
by expanding the ‘Ports’ list in Windows Device Manager. 
Start MaxSSD (Start Æ All Programs Æ Sealevel SeaMAX Æ MaxSSD) and choose 
the correct port (IP address or COM port) to communicate with the “base” module. 
Ensure a successful Get operation (refer to the MaxSSD section on the following 
pages for more information). 
Set the slave ID of the “base” module using the rotary switch or software selection 
method discussed in the Setting Device Address section on the previous pages. This 
guarantees that any expansion modules connected next will not conflict with the 
“base” module. Perform another Get operation to verify that you can communicate 
with the “base” module at the new slave ID. 
NOTE: 
Configure SeaI/O modules one at a time. Set the address to a 
hardware slave ID other than “0” or a software slave ID other than 
247, which avoids device conflicts during setup. 
After the “base” module is successfully communicating via MaxSSD, you can 
proceed with adding SeaI/O expansion modules (N-series) one at a time
, as required. 
NOTE: 
If the “base” module doesn’t respond as expected, turn the rotary 
switch (ADDR) clockwise one full revolution to reset. Configure the 
PC to communicate at 9600 bps and no parity and then try again. 
© Sealevel Systems, Inc. 
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SeaI/O User Manual 










