Sealevel Systems Inc.'s
SeaI/O-570 multifunction module offers a powerful combination of analog and
digital I/O. The SeaI/O-570 provides eight single-ended 16-bit analog inputs,
eight optically isolated digital inputs and eight Form C relay outputs. The
module's A/D inputs are independently software selectable for +/-5V dc or
+/-15V dc ranges and feature high input impedance, allowing easy connection to
a variety of sensors. The eight isolated inputs are rated for 5-30V dc and
provide 3500V dc external isolation, while the SeaI/O-570's eight Form C
outputs are configurable as normally-open or normally-closed and can switch dc
loads up to 24W.
Ordering options allow connection to a host device via
Wireless (802.11b/g), Ethernet (Modbus/TCP), RS-485 (Modbus/RTU), USB or
RS-232. Field removable terminal blocks are standard, facilitating fast,
flexible field wiring. SeaI/O modules operate from 9-30V dc, and power can be
input via terminal block or dc jack. Both table mount and DIN rail mounting
options are available, and installation is made easy using Sealevel's software
A variety of SeaI/O expansion modules are available offering
Reed and Form C relays, optically isolated inputs, TTL interface to industry
standard solid-state relay racks, A/D and D/A functionality. Multiple units of
any I/O type can be daisy chained together using pass-through connectors. This
expansion capability enables a distributed network to be controlled with even a
traditional point-to-point USB or RS-232 host connection. For easy software
integration, application programs or 3rd party software can use Sealevel's
SeaMAX library or industry standard Modbus protocol.
Standard operating temperature range of SeaI/O modules is
-20 to 70C and extended temperature range, -40 to +85C, is optional. SeaI/O-570
prices start at $399 and are available immediately from stock.
Available in wireless, Ethernet (Modbus/TCP),
RS-485 (Modbus/RTU), USB and RS-232 models
8 A/D inputs, 8 optically isolated digital
inputs, and 8 Form C relay outputs
Removable screw terminals simplify field wiring
Status indicator LEDs for Communication, Fault,
Input power via terminal block or modular
Optional DIN rail or table mount
Daisy chain up to 247 modules
Sealevel software supports Windows 2000/XP/Vista/Windows
7 (32- & 64-bit) operating systems
Researchers at the University of Maryland have achieved a first in lithium-ion battery science: the development of a successful lithium-based battery using one material for all three core components of a battery -- anode, cathode, and electrolyte.
The online Bar Steel Fatigue Database for automotive design engineers has been updated for the fifth time and now contains 134 iterations, or grade/process combinations. It provides better predictability for designing parts with long-term reliability and durability.
FPGAs use programmable fabric to create custom logic, but this flexibility comes at a cost -- usually around 10 times more silicon real estate and 10 times the power dissipation. Can we really claim any FPGA is low power?
Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.