August 2004 . Volume 3. Issue 4
Welcome to Sealevel Systems' monthly newsletter. The goal is to help our valued customers easily receive timely updates on the latest Sealevel developments. We appreciate your business and continue striving to be the best communications and I/O solutions provider in the market.

In This Issue:


Features:

- Choice of connectivity:

  • Ethernet
  • USB
  • RS-485
  • RS-232

- Supports Industry Standard Modbus Protocol

- Five Models Offer Choice of Optically Isolated Inputs, Reed Relay Outputs, and Form C Relay Outputs

- Status Indicator LEDs for Communication, Fault, and Power

- Field Removable Terminal Block Connectors

- 9-30VDC Power Input

- Power Input via Terminal Block or DC Jack

· Daisy Chain up to 247 Modules

- Extended Temperature Available (-40°C to +85°C)

- Rugged Metal Enclosure

- Compact Size - 7.5"(L) x 5.1"(W) x 1.3"(H)

- Din Rail or Table Mount

- Lifetime Warranty

SeaI/O™ modules provide a powerful way to add I/O to a variety of computers, controllers, and PLCs. Choose from five I/O configurations, each designed for maximum flexibility and easy field wiring. Ordering options allow connection to the host device via Ethernet, USB, RS-485, or RS-232, and multiple units can be daisy chained together using convenient pass-through connectors. For easy software integration, application programs or 3rd party software can use Sealevel’s SeaMAX library or industry standard Modbus protocol.

SeaI/O modules are perfect for a wide variety of applications and environments including:

  • Process Control
  • Data Acquisition
  • Broadcast Automation
  • Security
  • Facility Management


Click here for more information on the SeaI/O-410E
(Ethernet Modbus/TCP interface)

SeaI/O-410 modules provide 16 optically isolated inputs and 16 Reed relay outputs. Inputs can range from 5-24VDC, while the Reed relays provide long life switch closures well suited to low current devices. Inputs and outputs are grouped in four-bit segments. Each group shares a common for easy wiring via removable 3.5mm terminal blocks.

Inputs
 
Outputs
 
Type:
16 non-polarized optically isolated inputs
Type:
16 SPST Form A Reed Relays
Voltage Range:
5-24VDC
Power:
10VA max.
Isolation:
300V
Contact Voltage:
60VDC max.
Input Resistance:
6.2K Ohms in series
Contact Current:
500mA max.
Response Time:
4 microseconds
Operate Time:
0.5ms max.
 
Bounce Time:
0.5ms max.
 
Release Time:
0.2ms max.


SeaI/O-420U (USB Modbus/RTU) information

The SeaI/O-420 provides 16 optically isolated inputs and 8 SPDT Form C relay outputs. Inputs can range from 5-24VDC and provide 300V isolation to ground. Each output offers normally open and normally closed contact connections via 3.5mm field removable terminal blocks.

Inputs
 
Outputs
 
Type:
16 non-polarized optically isolated inputs
Type:
8 SPDT Form C relays
Voltage Range:
5-24VDC
Power:
DC 30W/ AC 60 VA
Isolation:
300V
Contact Voltage:
60VDC max.
Input Resistance:
6.2K Ohms in series
Contact Current:
2A max.
Response Time:
4 microseconds
Operate Time:
2ms max.
 
Bounce Time:
7ms max.
 
Release Time:
1ms max.


SeaI/O-430M (RS-485 Modbus/RTU) information

SeaI/O-430 modules provide 32 optically isolated inputs with 300V external isolation and high channel-to-channel isolation. Ideal for low voltage monitoring applications, connection to real world signals is made via convenient 3.5mm removable screw terminal connectors.

Inputs
 
Type:
32 non-polarized optically isolated inputs
Voltage Range:
5-24VDC
Isolation:
300V
Input Resistance:
6.2K Ohms in series
Response Time:
4 microseconds


SeaI/O-440S (RS-232 Modbus/RTU) information

The SeaI/O-440 provides 32 SPST Form A dry contact Reed relays. Reed relays offer long life performance and fast response time. Convenient removable 3.5mm screw terminal blocks compatible with 16-30 AWG wiring allow reliable connection to real world I/O.

Outputs
 
Type:
32 SPST Form A Reed relays
Power:
10VA max.
Contact Voltage:
60VDC max.
Contact Current:
500mA max.
Operate Time:
0.5ms max.
Bounce Time:
0.5ms max.
Release Time:
0.2ms max.


SeaI/O-450N (Expansion module) information

Control a variety of low voltage, low current devices with the SeaI/O-450. The module’s 16 channels of highly reliable SPDT Form C relay outputs are rated for up to 60VDC @ 2A. Each output offers normally open and normally closed contact connections via 3.5mm field removable terminal blocks.

Outputs
 
Type:
16 SPDT Form C relays
Power:
DC 30W/ AC 60 VA
Contact Voltage:
60VDC max.
Contact Current:
2A max.
Operate Time:
2ms max.
Bounce Time:
7ms max.
Release Time:
1ms max.
 
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