|
|
Opto 22’s flagship SNAP PAC System combines
PAC Project™ software,
SNAP PAC controllers, SNAP PAC brains, and SNAP I/O™ into
a completely integrated, easy-to-use system designed to simplify
the typically complex process of solving automation, monitoring,
and data acquisition problems.
By combining hardware, software,
training, and support, the SNAP PAC System dramatically reduces
the time, effort, and cost required to understand, select, buy,
apply, and maintain automation and control systems. Pre-sales consultation,
product training, support, and documentation are all FREE of charge
with the SNAP PAC System.
|
SNAP-PAC-R2 Overview
The SNAP-PAC-R2
programmable automation controller provides control, communication,
and I/O processing in a compact, rack-mounted package. One of four
components of the SNAP PAC System, the SNAP-PAC-R2 is fully integrated
with PAC Project software, SNAP PAC brains, and SNAP I/O modules.
Used with the included PAC Project Basic software suite (or PAC Project Professional,
purchased separately), the Ethernet-based SNAP-PAC-R2 can handle almost all your
industrial control, remote monitoring, and data aquisition needs.
System Architecture
This intelligent, flexible PAC can be used in several ways. The SNAP-PAC-R2 can
provide complete cell control on its own rack with I/O
modules. It can also control SNAP PAC I/O units at the same time for a larger
system. Or the R2 can be used in a more extensive distributed
control system as an I/O unit controlled by a SNAP
PAC S-series standalone controller.
Networking
Two independent, 10/100 Mbps Ethernet network
interfaces are included on each SNAP-PAC-R2. These interfaces have separate IP
addresses and can be used to segment the control network from the company
network or to provide Ethernet link redundancy in case of link failure or maintenance.
In addition, the controller has an RS-232 serial port with hardware handshaking,
which can be used for PPP
(Point-to-Point Protocol) communication over a modem or for direct connection
to serial devices.
Programming and Protocols
The SNAP-PAC-R2 is programmed using the included PAC Control software. PAC Control
is a flowchart-based tool for developing control applications, or strategies.
You create and debug the strategy on your computer and then download it to the
R2, where it runs independently. The controller has 16 MB of RAM and can run
up to 16 PAC Control flowcharts at once (many more can be included in the strategy).
You can build full-featured operator interfaces (HMIs) using the included PAC
Display software, which taps the same tagname database you've already developed
in PAC Control.
In addition to control, the SNAP-PAC-R2 provides communication. Because it is
based on the Internet
Protocol (IP), the SNAP-PAC-R2 can communicate simultaneously using several
different protocols, including TCP/IP, PPP, Modbus/TCP, SNMP for
network management, SMTP for
emailing, and OptoMMP,
the open memory-mapped protocol used by all Opto 22 Ethernet-based devices.
I/O Processing
The controller mounts on a SNAP PAC mounting rack with up to 4, 8, 12,
or 16 digital,
analog, serial, and special-purpose I/O modules. Choose the modules needed for
your application from the extensive line of SNAP I/O modules.
- Analog features include thermocouple
linearization, minimum/maximum values, offset and gain calibration,
scaling, TPO, output clamping, filter weight, and watchdog timer. The SNAP-PAC-R2
also offers up to 96 PID
loops.
- Digital features are simplified on the SNAP-PAC-R2. Digital
features include status, latching, and watchdog timer. Four-channel digital
modules (as well as analog, high-density digital, serial, and special-purpose
modules) can be placed in any rack position.
|
|
Join Our Email List
