SNAP Ethernet Brains
Description
High-performance, flexible SNAP Ethernet brains are part of
Opto 22’s SNAP Ethernet systems, which let you connect to state-
of-the-art Opto 22 industrial I/O hardware using a standard TCP/IP
Ethernet connection.
Combined with analog, digital, and special-purpose I/O modules on
a standard SNAP mounting rack, the SNAP Ethernet brain forms an
I/O unit that can be used alone or as part of a distributed control
system based on an Opto 22 industrial controller, such as the SNAP
PAC standalone or rack-mounted programmable automation
controllers.
A SNAP Ethernet system can be attached to existing Ethernet
networks, making it easy to add monitoring and control where
necessary. Or you can use standard Ethernet hardware to build an
independent control network. You can also communicate with the
system via a modem connection using Point-to-Point Protocol
(PPP). A modem connection is ideal for remote locations or other
places where an Ethernet network is not practical.
The SNAP Ethernet brain family includes three products:
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Used with SNAP mounting racks and SNAP I/O
Ethernet brain functions include the following:
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Features
The SNAP-B3000-ENET brain is designed to remotely
interface with a mix of analog, digital, and serial modules. It is
Factory Mutual approved.
The SNAP-ENET-RTC brain handles analog, digital, and serial
signals and includes a battery-backed real-time clock.
The SNAP-ENET-D64 brain is a digital-only processor. (Not
recommended for new development. Use a SNAP Simple brain
instead; see form #1452).
Digital—Input latching, on/off status, watchdog timer, and
event/reactions. SNAP-B3000-ENET and SNAP-ENET-RTC
brains also include high-speed counters when used with
standard digital input modules, and quadrature counters when
used with quadrature input modules. When used with a SNAP
PAC controller and ioControl
ENET and SNAP-ENET-RTC brains also include on-pulse and off-
Direct 10/100 Megabit Fast Ethernet connection
ITCP/IP and UDP/IP transport
Multiple, simultaneous communication and protocol
options
™
Professional, the SNAP-B3000-
®
modules, SNAP
Part Numbers
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SNAP-B3000-ENET and SNAP-ENET-RTC brains can also use special-
purpose SNAP modules on the same mounting rack:
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•
•
See
Simple I/O, and SNAP Ultimate I/O features.
SNAP-B3000-ENET
SNAP-ENET-RTC
SNAP-ENET-D64
page 5
pulse measurement, time-proportional output (TPO), and
pulse generation, including N pulses, continuous square waves,
on-pulses, and off-pulses.
Analog—Thermocouple linearization (32-bit floating point
for linearized values), minimum/maximum values, offset and
gain, scaling, output clamping, time-proportional output, filter
weight, and watchdog timer. In addition, each brain provides
16 proportional integral derivative (PID) loops for local control.
When used with a SNAP PAC controller and ioControl
Professional, analog ramping is also available.
Serial communication modules—Send and receive ASCII
strings to and from attached serial devices, such as chart
recorders and barcode readers.
Profibus module—Interface with PROFIBUS DP
using a standard electrical interface.
High-density digital modules—Work with up to 32 digital
inputs or 32 digital outputs on each module, for up to 512
digital points on a 16-module rack.
RTCBATT
Part
for a detailed comparison of SNAP Ethernet I/O, SNAP
SNAP Ethernet Brain
Analog/Digital/Serial Ethernet Brain
Digital-only Ethernet Brain (Not for
new development)
Analog/Digital/Serial Ethernet Brain
with Real-time Clock
Replacement backup battery for
SNAP-ENET-RTC brain
Description
®
networks,
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