SNAP PAC S-Series Controllers
Opto 22 • 43044 Business Park Drive • Temecula, CA 92590-3614 • www.opto22.com
SALES 800-321-6786 • 951-695-3000 • FAX 951-695-3095 • sales@opto22.com • SUPPORT 800-835-6786 • 951-695-3080 • FAX 951-695-3017 • support@opto22.com
© 2006–2012 Opto 22. All rights reserved. Dimensions and specifications are subject to change. Brand or product names used herein are trademarks or registered trademarks of their respective companies or organizations.
PAGE
1
DATA SHEET
Form 1584-121205
SNAP PAC S-Series Controllers
Features
Up to 32 PAC Control flowcharts running
simultaneously
Two 10/100 Mbps Ethernet interfaces for host and I/O
communication over standard Ethernet networks
Wired+Wireless models add wireless LAN network
interface as well
RS-232 and RS-485 serial ports for connection to serial
devices, including Opto 22 serial I/O units and PPP host
communication.
Multiple protocol support: TCP/IP, EtherNet/IP™,
Modbus®/TCP, SNMP, SMTP, FTP, and OptoMMP™
FTP server/client capability; includes file system and
removable storage (2 GB microSD card)
Use two identical models for controller redundancy
Description
A SNAP PAC S-series programmable automation controller
(PAC) provides powerful, real-time control and
communication to meet your industrial control, monitoring,
and data acquisition needs. As part of the Opto 22 SNAP PAC
System, one of these compact, industrially hardened
controllers can handle multiple control, automation, and data
acquisition tasks involving digital and analog control, serial
string handling, PID, and enterprise connectivity.
Connecting to Opto 22 serial- and Ethernet-based I/O
systems, a SNAP PAC S-series controller runs control programs
written in Opto 22’s PAC Control™ software to monitor and
control a wide range of devices and equipment. SNAP PAC S-
series controllers are well suited to original equipment
manufacturers (OEMs), system integrators, and end-users in
process control, discrete manufacturing, or hybrid industries
and applications.
A SNAP PAC S-series controller simultaneously runs up to 32
PAC Control flowcharts, although the PAC Control strategy can
actually contain a much larger number of charts. The total
number of flowcharts is limited only by the controller memory
available for strategy storage.
Ethernet Communication
All SNAP PAC S-series programmable automation controllers
communicate over standard 10/100 Mbps Ethernet networks
and can be attached to existing wired or wireless Ethernet
networks. The controllers can also be used in an independent
control network built with standard, off-the-shelf Ethernet
hardware.
SNAP PAC S-series controllers include two 10/100 Mbps
Ethernet interfaces for networking through an Ethernet switch
to Ethernet hosts, as well as SNAP PAC brains and I/O, which
provide local intelligence and the connections to digital and
analog sensors and actuators as well as serial devices. These
independent Ethernet ports have separate IP addresses that
can be used with PAC Project™ Professional software to set up
redundant network links to safeguard the availability and
reliability of an I/O system, or to segment a control system’s
network from the enterprise LAN.
Part Numbers
Part Description
SNAP-PAC-S1 Ethernet-based programmable automa-
tion controller with 2 Ethernet interfaces
SNAP-PAC-S1-FM Ethernet-based programmable automa-
tion controller with 2 Ethernet interfaces,
Factory Mutual approved
SNAP-PAC-S1-W Wired+Wireless Ethernet-based PAC
with 2 Ethernet interfaces and a wireless
LAN interface
SNAP-PAC-S2 Ethernet-based programmable automa-
tion controller with 2 Ethernet interfaces
and 4 serial ports
SNAP-PAC-S2-W Wired+Wireless Ethernet-based PAC
with 2 Ethernet interfaces, a wireless LAN
interface, and 4 serial ports
SNAP-PSDIN SNAP-PAC-S1 controller DIN-rail adapter
SNAP-S2DIN SNAP-PAC-S2 controller DIN-rail adapter
SNAP-PAC-S2
controller
SNAP PAC S-Series Controllers
Opto 22 • 43044 Business Park Drive • Temecula, CA 92590-3614 • www.opto22.com
SALES 800-321-6786 • 951-695-3000 • FAX 951-695-3095 • sales@opto22.com • SUPPORT 800-835-6786 • 951-695-3080 • FAX 951-695-3017 • support@opto22.com
© 2006–2012 Opto 22. All rights reserved. Dimensions and specifications are subject to change. Brand or product names used herein are trademarks or registered trademarks of their respective companies or organizations.
SNAP PAC S-Series Controllers
PAGE
2
DATA SHEET
Form 1584-121205
Wired+Wireless Communication
SNAP-PAC-S1-W and SNAP-PAC-S2-W controllers
add wireless capability to communications. In
addition to the two wired network interfaces, these
models have a wireless network interface as well, so
each PAC has a total of three separate IP
addresses—two wired and one wireless.
Wired+Wireless PACs can be used wirelessly or
on a wired network, or both at once.
For flexibility in designing your
wireless network, wireless
communication includes
support for 802.11a, b, and g
standards. Wired+Wireless PACs
can be used with a variety of
wireless switches and other
infrastructure hardware. For the
best security, the 802.11i
WPA2/AES standard is
supported, while older WPA and
WEP security standards are
included for backwards compatibility.
Just like a laptop computer with a wireless
connection, all functionality remains the same
whether the Wired+Wireless PAC is used wirelessly or as part
of a wired network. Supported protocols remain the same.
Control programs run the same on both networks without
reprogramming.
A Wired+Wireless S-series PAC can communicate with both
wired and wireless SNAP PAC I/O units. (See “I/O Units
Supported” on page 4 for details.) If desired, the PAC can
segment a wireless network from a wired one.
Serial Communication
SNAP PAC S-series controllers provide RS-232 and RS-485
communication as follows:
The SNAP-PAC-S1 and SNAP-PAC-S1-FM have two RS-232
serial ports that support general-purpose communication
with serial devices; you can send and receive data from one or
two serial devices connected directly to the controller. Port 0
can be connected to a modem using PPP (Point-to-Point
Protocol). These controllers also have one pluggable two-wire
RS-485 port that can be used for SNAP PAC or mistic serial I/O
units. For additional serial interfaces, you can add one or more
SNAP serial communication modules on SNAP PAC racks
connected to the controller.
The SNAP-PAC-S2 has four serial ports that can each be
configured using PAC Manager as either RS-232 or RS-485 (2-
wire or 4-wire). These serial ports can be used for I/O or for
general-purpose serial communication. For the default
configuration settings of these ports, see form 1592, the SNAP
PAC S-series User’s Guide.
Configured as RS-232, the ports support remote serial device
communication, and any one of the ports can be configured
as a PPP modem connection for creating a TCP/IP network
over PSTN (Public Switched Telephone Network) lines.
Configured as RS-485, the serial ports connect to
legacy Opto 22 mistic™ I/O units, including the
serial B3000 brain and remote mistic bricks,
and to SNAP PAC SB-series serial brains.
For additional serial host interfaces, you can
add one or more SNAP serial communication
modules on attached SNAP Ethernet-based I/O
units.
Controller Redundancy
Two identical SNAP PAC S-series controllers can be
used to form a redundant system, where one controller
actively runs the control program and the other is ready to
take over immediately if the first one should fail.
Besides two identical PACs, a redundant system requires PAC
Professional 9.0 or newer (see “Software,” below), and the
SNAP PAC Redundancy Option Kit. For more information, see
the SNAP PAC Redundancy Option Kit Data Sheet (form 1901)
and the SNAP PAC System Redundancy User’s Guide (form 1831),
both available on our website.
Backward Compatibility
S-series controllers have RS-485 serial interfaces for
connecting to Opto 22’s legacy mistic I/O units. The SNAP-
PAC-S1 and SNAP-PAC-S1-FM have one RS-485 port, and the
SNAP-PAC-S2 can be configured with up to four.
This connectivity with legacy serial-based I/O systems,
combined with PAC Control Professional’s ability to import
control programs (or strategies) written in OptoControl™
software, provides a migration path to integrate older Opto 22
I/O systems into modern control hardware running on
Ethernet networks.
For detailed information on updating control strategies and
integrating legacy control hardware into modern systems, see
the FactoryFloor to PAC Project Migration Technical Note
(Opto 22 form 1692).
SNAP PAC S-Series Controllers
Opto 22 • 43044 Business Park Drive • Temecula, CA 92590-3614 • www.opto22.com
SALES 800-321-6786 • 951-695-3000 • FAX 951-695-3095 • sales@opto22.com • SUPPORT 800-835-6786 • 951-695-3080 • FAX 951-695-3017 • support@opto22.com
© 2006–2012 Opto 22. All rights reserved. Dimensions and specifications are subject to change. Brand or product names used herein are trademarks or registered trademarks of their respective companies or organizations.
SNAP PAC S-Series Controllers DATA SHEET
Form 1584-121205
PAGE
3
Software
SNAP PAC controllers use Opto 22’s PAC Project Microsoft®
Windows®-compatible automation software for control
programming, human-machine-interface (HMI) development,
and OPC and database connectivity. Two versions of PAC
Project are available:
•PAC Project Basic includes PAC Control for developing
control programs, PAC Display™ for creating operator
interfaces, and PAC Manager™ configuration software.
• PAC Project Professional adds expanded versions of PAC
Control and PAC Display, plus a SoftPAC™ software-based
controller for PC-based control, OptoOPCServer™ software
for exchanging data with OPC 2.0-compliant client
software applications, and OptoDataLink™ for exchanging
SNAP PAC System data with ODBC-compliant databases.
Applications in the PAC Project software suite are described
below:
PAC Control Basic is a graphical, flowchart-based
programming tool for machine control and process
applications. Using PAC Control, you create, download, and
run strategies on a SNAP PAC controller. In addition to
flowchart programming with subroutine capability, PAC
Control includes a powerful, built-in scripting language based
on C and other procedural languages. PAC Control
Professional adds capabilities to import OptoControl
strategies, to support mistic I/O units, and to use a SNAP PAC
controller’s independent Ethernet ports to segment
communication links.
PAC Display Basic is an intuitive HMI package for building
operator interfaces, or projects, for communicating with a
SNAP PAC controller. PAC Display offers a full-featured HMI
including alarming, trending, and a built-in library of 3,000
industrial automation graphics. PAC Display Professional
adds the ability to import projects created in OptoDisplay, part
of the Opto 22 FactoryFloor® software suite, and to use
redundant communication links on SNAP PAC controllers. PAC
Display Professional can also connect to Ethernet-based
FactoryFloor controllers running OptoControl strategies or
ioProject controllers running ioControl strategies.
SoftPAC is a software-based programmable automation
controller (PAC)designed for PC-based control. Programmed
just like an Opto 22 hardware PAC, SoftPAC runs your PAC
Control strategy independently on an embedded or
standalone PC. SoftPAC takes advantage of a PC’s speed and
file capabilities for applications requiring extended file storage,
frequent access to files, math-intensive processes, or a large
number of control flowcharts running at the same time.
OptoOPCServer (PAC Project Professional only) is a fast,
efficient OPC 2.0-compliant server for communicating with
many Opto 22 products, including SNAP PAC controllers
running PAC Control strategies, SNAP PAC brains, SNAP
Ultimate controller/brains, SNAP Ethernet and SNAP Simple
brains, and Ethernet-based FactoryFloor controllers running
OptoControl strategies.
Using OptoOPCServer, you can consolidate data from all these
Opto 22 systems into the OPC client software of your choice,
such as third-party HMI and data acquisition packages, and
custom software applications you create with tools such as
Visual C++®.
OptoDataLink (PAC Project Professional only) transparently
provides multiple connections for data exchange with popular
databases such as Microsoft SQL Server, Microsoft Access, and
MySQL. OptoDataLink connects your SNAP PAC system with
the tools used for making business decisions, bringing
realtime, accurate data to decision makers.
PAC Manager is a utility application for assigning IP addresses
to SNAP PAC controllers and brains, reading or changing basic
controller configuration, upgrading firmware, and inspecting
or testing controllers and I/O.
Software Availability
PAC Project Basic is included with SNAP PAC controllers and is
a free download from the Opto 22 website. PAC Project
Professional is available for purchase. You can also separately
purchase PAC Control Professional, PAC Display Professional,
SoftPAC, OptoOPCServer, and OptoDataLink as needed. For
additional information, see the PAC Project Data Sheet, Opto 22
form 1699.
SNAP PAC S-Series Controllers
Opto 22 • 43044 Business Park Drive • Temecula, CA 92590-3614 • www.opto22.com
SALES 800-321-6786 • 951-695-3000 • FAX 951-695-3095 • sales@opto22.com • SUPPORT 800-835-6786 • 951-695-3080 • FAX 951-695-3017 • support@opto22.com
© 2006–2012 Opto 22. All rights reserved. Dimensions and specifications are subject to change. Brand or product names used herein are trademarks or registered trademarks of their respective companies or organizations.
SNAP PAC S-Series Controllers
PAGE
4
DATA SHEET
Form 1584-121205
I/O Units Supported
Technical Specifications
Specifications are continued on the following page.
S-Series Controller On a Wireless LAN On a Wired Ethernet Network On a Serial Network
SNAP-PAC-S1
SNAP-PAC-S1-FM
SNAP-PAC-S2
---none--- SNAP-PAC-R1
SNAP-PAC-R1-FM
SNAP-PAC-R2
SNAP-PAC-R2-FM
SNAP-PAC-EB1
SNAP-PAC-EB1-FM
SNAP-PAC-EB2
SNAP-PAC-EB2-FM
G4EB2
G4D32EB2
G4D32EB2-UPG
SNAP-UP1-ADS*
SNAP-B3000-ENET*
SNAP-ENET-D64*
SNAP-ENET-S64*
SNAP-ENET-RTC*
SNAP-PAC-SB1
SNAP-PAC-SB2
B3000*
B3000-B*
SNAP-BRS*
B100*
B200*
G4D16R*
G4D32RS*
G4A8R*
SNAP-PAC-S1-W
SNAP-PAC-S2-W SNAP-PAC-R1-W
SNAP-PAC-R2-W
SNAP-PAC-EB1-W
SNAP-PAC-EB2-W
* Legacy I/O processors; not recommended for new development
Processor 266 MHz 32-bit ColdFire
®
5475 with integrated floating- point unit (FPU)
Memory
Total RAM
Battery-backed RAM
Flash
Wired+Wireless: 128 MB; other models 32 MB. (16 MB for PAC Control strategy)
8MB
16 MB (7.5 MB available for PAC Control strategy; 4 MB available for file storage)
Removable storage (Models manufactured November 2008 and later; requires firmware R8.4 or
higher) MicroSD card slot: supports MicroSD card up to 2 GB maximum
Backup battery SNAP-PAC-S1s with serial number 625654 or higher and all SNAP-PAC-S2s:
Rechargeable (recharges whenever the brain has power), 1-year power-off data
retention
SNAP-PAC-S1s with serial number 62 5653 or lower: User-replacea ble 3.6-volt TL
5242 /W lithium, 10-year minimum power-off data retention (replac ement part
number: G4BATT32)
Ethernet Communication
(wired) to host and I/O Two independent 10/100 Mbps Ethernet network interfaces (RJ-45 connectors).
Each interface has a separate IP address (separate subnet).
Ethernet Communication
(wireless)*
Topologies
Security
Frequency 802.11a
Frequency 802.11b/g
Transmit Power
Antenna Connector
Roaming
Wireless LAN interface with separate IP address.
Infrastructure, Ad-Hoc
802.11i: AES - Compatible with WPA2 Personal, TKIP - Compatible with WPA
Personal, WEP. Note: TKIP/AES security is not supported in Ad-Hoc mode.
5.180–5.240 GHz, 5.745–5.825 GHz
2.412–2.472 GHz, 2.484 GHz
15 dBm maximum
Reverse polarity SMA (RP-SMA or RSMA)
Supported within an SSID (Service Set Identifier) only
Serial Communication
SNAP PAC S-Series Controllers
Opto 22 • 43044 Business Park Drive • Temecula, CA 92590-3614 • www.opto22.com
SALES 800-321-6786 • 951-695-3000 • FAX 951-695-3095 • sales@opto22.com • SUPPORT 800-835-6786 • 951-695-3080 • FAX 951-695-3017 • support@opto22.com
© 2006–2012 Opto 22. All rights reserved. Dimensions and specifications are subject to change. Brand or product names used herein are trademarks or registered trademarks of their respective companies or organizations.
SNAP PAC S-Series Controllers DATA SHEET
Form 1584-121205
PAGE
5
SNAP-PAC-S1
RS-232 serial
RS-485 serial
Two RS-232 serial ports (one DB-9 and one pluggable connector); one port has
full handshaking. PPP is supported only on port 0. Buffer size: 512 bytes each for
RX and TX.
One RS-485 serial port (pluggable c onnector); two-wire RS-485; optional mistic
signal interrupts. Range (serial multidrop): 32 stations maximum on a segment
(including PC, controller, and I/O units); up to 3000 ft (914 m) on a segment.
Buffer size: 512 bytes each for RX and TX.
SNAP-PAC-S2 Four serial ports that can be used as general purpose ports or for serial I/O units;
each port is soft ware configurable as either RS-232 (Tx, Rx, COM, DTR, DCD,
RTS, CTS) or as RS-485 (2-wire, 4-wire, optional termination, optional biasing);
optional mistic signal interrupts. Buffer size: 512 bytes each for RX and TX.
I/O unit compatibility
Ethernet-based I/O units
Serial-based I/O units
Opto 22 SNAP PAC R-series, SNAP PAC EB-series, SNAP SIO, SNAP EIO, and
SNAP UIO brains
SNAP PAC SB-series, Serial B3000, SNAP-BRS, B100/B200, mistic remote
bricks (G4D16R, G4D32RS, G4A8R)
Power requirements 8–32 VDC ±0.5, 11.3 VA maximum
(SNAP-PAC-S1 controllers with serial numbers below 500,000 use 8–24 VDC)
Operating temperature
Storage temperature
Humidity
0°C to 60°C
-40 °C to 85 °C
0% to 95% relative humidity, non-condensing
Software
PAC Project Basic
PAC Project Professional
Includes programming, HMI software, and configuration software; included with
purchase of controller.
PAC Project Basic plus OPC 2.0-compliant OPC server, OptoControl strategy and
OptoDisplay project impor ting, s upport fo r ser ial mistic I/O units, and Ethernet link
redundancy support.
Number of charts that can
run simultaneously 32
Other features Multiple protocol sup port including TCP/IP, FTP, SNMP v2.0c (with fir mware 8.2a),
Modbus/TCP, EtherNet/IP™, and OptoMMP™.
Real-time clock
FTP server/client with file system (in RAM and in removable storage)
Ethernet link redundancy or network segmenting
Agency certifications (-W models only) U.S., FCC Part 15 Subpart C; Canada, IC RSS-210
(-FM models only) Factory Mutual approved
All models: CE, RoHS, DFARS
Warranty 30 months from date of manufacture
*
Requires a Wired+Wireless model (SNAP-PAC-S1-W or SNAP-PAC-S2-W)
SNAP PAC S-Series Controllers
Opto 22 • 43044 Business Park Drive • Temecula, CA 92590-3614 • www.opto22.com
SALES 800-321-6786 • 951-695-3000 • FAX 951-695-3095 • sales@opto22.com • SUPPORT 800-835-6786 • 951-695-3080 • FAX 951-695-3017 • support@opto22.com
© 2006–2012 Opto 22. All rights reserved. Dimensions and specifications are subject to change. Brand or product names used herein are trademarks or registered trademarks of their respective companies or organizations.
SNAP PAC S-Series Controllers
PAGE
6
DATA SHEET
Form 1584-121205
System Architecture (continued)
SNAP-PAC-S1 Controller and Serial-based I/O Units
The network shown in this diagram requires PAC Control Professional and PAC Display Professional.
PC running PAC
Display Professional
PC running PAC
Control Professional
Ethernet
switch
This diagram shows a SNAP PAC S-series controller
connected to multiple Opto 22 serial-based I/O units over
an RS-485 serial network. The controller is also connected to
a larger, separate enterprise Ethernet network to provide
process data to a PC running Opto 22’s PAC Display HMI
software.
The diagram also shows a PC running PAC Control
Professional; the control program (or strategy) that runs on
the SNAP controller was developed in this application. Once
developed, the strategy is downloaded to the controller and
runs independently.
I/O units are connected via a 2-wire RS-485 serial network
and are controlled by the SNAP PAC S-series controller. Each I/O
unit is connected to its own group of sensors and actuators.
SNAP PAC S-series
controller controls
all I/O units.
RS-485 serial
network
Sensors and actuators,
location #1
Sensors and actuators,
location #2
Sensors and actuators,
location #3
SNAP PAC S-Series Controllers
Opto 22 • 43044 Business Park Drive • Temecula, CA 92590-3614 • www.opto22.com
SALES 800-321-6786 • 951-695-3000 • FAX 951-695-3095 • sales@opto22.com • SUPPORT 800-835-6786 • 951-695-3080 • FAX 951-695-3017 • support@opto22.com
© 2006–2012 Opto 22. All rights reserved. Dimensions and specifications are subject to change. Brand or product names used herein are trademarks or registered trademarks of their respective companies or organizations.
SNAP PAC S-Series Controllers DATA SHEET
Form 1584-121205
PAGE
7
System Architecture (continued)
SNAP-PAC-S2 Controller and Serial-based I/O Units
The network shown in this diagram requires PAC Control Professional and PAC Display Professional.
Sensors and
actuators, location #3
Sensors and actuators,
location #4
Sensors and
actuators, location #5
Sensors and actuators,
location #1
Sensors and actuators,
location #2
PC running PAC
Display Professional
PC running PAC
Control Professional
Scale
RS-485 serial networks SNAP-PAC-S2 controller
controls all I/O units and
processes data from the scale.
I/O units are connected via a 2-wire RS-485 serial network and
are controlled by the SNAP PAC S-series controller. Each I/O unit
is connected to its own group of sensors and actuators.
Ethernet switch
Modem
Modem
PPP connection
PPP connection
to SNAP-PAC-R1
SNAP PAC S-Series Controllers
Opto 22 • 43044 Business Park Drive • Temecula, CA 92590-3614 • www.opto22.com
SALES 800-321-6786 • 951-695-3000 • FAX 951-695-3095 • sales@opto22.com • SUPPORT 800-835-6786 • 951-695-3080 • FAX 951-695-3017 • support@opto22.com
© 2006–2012 Opto 22. All rights reserved. Dimensions and specifications are subject to change. Brand or product names used herein are trademarks or registered trademarks of their respective companies or organizations.
SNAP PAC S-Series Controllers
PAGE
8
DATA SHEET
Form 1584-121205
System Architecture (continued)
Wired+Wireless SNAP PAC S-series Controller
The Wired+Wireless PAC can communicate with devices on wired networks, on a wireless LAN, or on both
at once. It can also simultaneously communicate serially.
Serial I/O units
Wired+Wireless I/O units
PC running PAC Display PC running PAC Control
SNAP-PAC-S1-W controller
controls all I/O units.
The Wired+Wireless SNAP PAC S-series controller is
controlling three groups of I/O units: one group through
its serial port, another through a standard 10/100 Mbps
interface, and the third over a wireless LAN.
At the same time, the controller is connected to a
second wired network for communication with PCs
running PAC Control and PAC Display.
Ethernet switch
Wireless
access point
Ethernet switch
I/O units on a wired
Ethernet network
SNAP PAC S-Series Controllers
Opto 22 • 43044 Business Park Drive • Temecula, CA 92590-3614 • www.opto22.com
SALES 800-321-6786 • 951-695-3000 • FAX 951-695-3095 • sales@opto22.com • SUPPORT 800-835-6786 • 951-695-3080 • FAX 951-695-3017 • support@opto22.com
© 2006–2012 Opto 22. All rights reserved. Dimensions and specifications are subject to change. Brand or product names used herein are trademarks or registered trademarks of their respective companies or organizations.
SNAP PAC S-Series Controllers DATA SHEET
Form 1584-121205
PAGE
9
System Architecture (continued)
SNAP PAC S-series Controller Segmenting Wired Ethernet Networks
The network shown in this diagram requires PAC Control Professional and PAC Display Professional.
PC running
OptoOPCServer and
OptoDataLink
PC running PAC Display
Professional
Ethernet switch,
network #1
Ethernet switch,
network #2
Enterprise Network
Control Network
SNAP PAC S-series controller communicates with host
computers through one network interface and controls I/O
with other devices through the other interface.
I/O units are controlled by the controller
on an isolated segment.
Sensors and actuators,
location #1
Sensors and actuators,
location #2
This diagram shows multiple Opto 22
SNAP I/O units connected together over an
Ethernet network and controlled by a SNAP PAC
S-series controller running a control strategy.
The controller is also connected to a larger,
separate enterprise Ethernet network to provide
data to two PCs running Opto 22’s PAC Display
HMI software and OptoOPCServer.
Sitting between the two networks, the SNAP
PAC S-series controller isolates I/O and control
traffic from the enterprise network, and vice
versa.
For this system, PAC Display must be configured
to access the I/O through the controller rather
than directly from the I/O units, since they are on
a separate network.
If you are using a Wired+Wireless PAC, one of
these networks could be a wireless LAN.
SNAP PAC S-Series Controllers
Opto 22 • 43044 Business Park Drive • Temecula, CA 92590-3614 • www.opto22.com
SALES 800-321-6786 • 951-695-3000 • FAX 951-695-3095 • sales@opto22.com • SUPPORT 800-835-6786 • 951-695-3080 • FAX 951-695-3017 • support@opto22.com
© 2006–2012 Opto 22. All rights reserved. Dimensions and specifications are subject to change. Brand or product names used herein are trademarks or registered trademarks of their respective companies or organizations.
SNAP PAC S-Series Controllers
PAGE
10
DATA SHEET
Form 1584-121205
System Architecture
SNAP PAC S-Series Controller in Redundant Network Configuration
The network shown in this diagram requires PAC Control Professional and PAC Display Professional.
PC with two NICs running
PAC Display Professional
PC with two NICs running
OptoOPCServer
This diagram shows a SNAP PAC S-series controller
connected to two separate Ethernet networks. This
configuration addresses the concern that an Ethernet
network may fail or need maintenance, leaving the PC
running OptoOPCServer, the PC running PAC Display, the
controller, and the I/O units unable to communicate.
In this configuration, if one network goes down, devices
can still communicate on the other. Each PC has two
network interface cards (NICs), and the SNAP PAC S-series
controller and the I/O units (SNAP PAC R-series) have two
network interfaces as well.
If you are using Wired+Wireless PACs, one of these
networks can be a wireless LAN.
I/O units are all connected by the controller. Each I/O unit
is connected to its own group of sensors and actuators,
but all are connected to the same two networks.
SNAP PAC S-series
controller controls
all I/O units.
SNAP PAC R-series
controller
Sensors and actuators,
location #2
Sensors and actuators,
location #1
Opto 22 Redundant Network
Ethernet switch,
network #2
Ethernet switch,
network #1
SNAP PAC R-series
controller
SNAP PAC S-Series Controllers
Opto 22 • 43044 Business Park Drive • Temecula, CA 92590-3614 • www.opto22.com
SALES 800-321-6786 • 951-695-3000 • FAX 951-695-3095 • sales@opto22.com • SUPPORT 800-835-6786 • 951-695-3080 • FAX 951-695-3017 • support@opto22.com
© 2006–2012 Opto 22. All rights reserved. Dimensions and specifications are subject to change. Brand or product names used herein are trademarks or registered trademarks of their respective companies or organizations.
SNAP PAC S-Series Controllers DATA SHEET
Form 1584-121205
PAGE
11
System Architecture (continued)
SNAP PAC S-series Redundant Controllers
Controller redundancy requires PAC Project Professional 9.0 or newer.
In this diagram, two S-series controllers are operating
redundantly. One is the active controller, while the
other acts as a backup, ready to take over should the
first one fail.
Controller redundancy requires PAC Project Professional
9.0 or newer and the Redundancy Option Kit, which
includes the arbiter and the redundant power switch in
this diagram. PAC Redundancy Manager, a software
utility for setting up and maintaining the system, is
included in PAC Project Pro.
The two controllers you use must be exactly the same
part number (for example, two SNAP-PAC-S2
controllers or two SNAP-PAC-S1-W controllers).
One advantage of an Opto 22 redundant system is that
it uses standard PACs, standard cabling, and standard
I/O. Another advantage is that either controller can act
as the active or backup controller; you can switch their
roles at any time for maintenance, for example.
For detailed information on redundancy, see form 1831,
the SNAP PAC System Redundancy User’s Guide.
SNAP PAC I/O units
Ethernet switch
Redundant
power switch
Arbiter
SNAP PAC controller
SNAP PAC controller
PC running PAC Project Professional
RS-485
Power control
Ethernet crossover
cable connects the
PAC S2s on ENET2
RS-485 Power
SNAP PAC S-Series Controllers
Opto 22 • 43044 Business Park Drive • Temecula, CA 92590-3614 • www.opto22.com
SALES 800-321-6786 • 951-695-3000 • FAX 951-695-3095 • sales@opto22.com • SUPPORT 800-835-6786 • 951-695-3080 • FAX 951-695-3017 • support@opto22.com
© 2006–2012 Opto 22. All rights reserved. Dimensions and specifications are subject to change. Brand or product names used herein are trademarks or registered trademarks of their respective companies or organizations.
SNAP PAC S-Series Controllers
PAGE
12
DATA SHEET
Form 1584-121205
SNAP-PAC-S1 Connectors and Indicators
This diagram applies to both the SNAP-PAC-S1 and the SNAP-
PAC-S1-FM.
Status and Activity LEDs
Indicator Description
S0 RS-232 serial activity
on port 0
S1 RS-232 serial activity
on port 1
S2 RS-485 serial activity
STAT Startup status and
control program oper-
ational status
ACT Ethernet network
activity
LINK Link established with
Ethernet network
Port 0 for RS-232 serial
(DB-9 connector)
Pin Description Signal
Direction
1DCD In
2RX In
3TX Out
4DTR Out
5COM
6DSR In
7RTS Out
8CTS In
9 RI* In
* RI signal does not occur on
PACs with a microSD card slot
Ports 1 and 2 for RS-485
and RS-232 serial
Pin Description Signal
Direction
Port 2 for RS-485 serial
(2-Wire)
1TX/RX+ In/Out
2TX/RX– In/Out
3SIG COM*
4IRQ+ In
5IRQ– In
Port 1 for RS-232 serial
6TX Out
7RX In
8GND
9RTS Out
10 CTS In
* Isolated ground
Independent 10/100 Mbps Ethernet
interfaces (RJ-45 connectors)
8–32 VDC input power
(pluggable 3-pin connector)
Port 0 for RS-232 serial
communications (DB-9 connector)
with handshaking. Supports PPP by default;
for use with serial devices, configure the port
in PAC Manager.
Port 1 for RS-232 serial
communications (pins 6–10 of
pluggable 10-pin connector)
Port 2 for RS-485 serial
communications (pins 1–5 of
pluggable 10-pin connector)
DIP switches for RS-485 serial link
Controller reset button
STAT LED
Activity LED (Yellow)
Link LED (Green)
MicroSD card slot
Bias
Termination
SNAP PAC S-Series Controllers
Opto 22 • 43044 Business Park Drive • Temecula, CA 92590-3614 • www.opto22.com
SALES 800-321-6786 • 951-695-3000 • FAX 951-695-3095 • sales@opto22.com • SUPPORT 800-835-6786 • 951-695-3080 • FAX 951-695-3017 • support@opto22.com
© 2006–2012 Opto 22. All rights reserved. Dimensions and specifications are subject to change. Brand or product names used herein are trademarks or registered trademarks of their respective companies or organizations.
SNAP PAC S-Series Controllers DATA SHEET
Form 1584-121205
PAGE
13
SNAP-PAC-S1-W Connectors and Indicators (Wired+Wireless)
Status and Activity LEDs
LED Description
S0 RS-232 serial activity on port 0
S1 RS-232 serial activity on port 1
S2 RS-485 serial activity
STAT Startup status and control program
operational status
ACT Ethernet network activity
LINK Link established with Ethernet net-
work
WLAN Wireless LAN status
Port 0 for RS-232 serial
(DB-9 connector)
Pin Description Signal
Direction
1DCD In
2RX In
3TX Out
4DTR Out
5COM
6DSR In
7RTS Out
8CTS In
9 NC*
* No connection
Ports 1 and 2 for RS-485
and RS-232 serial
Pin Description Signal
Direction
Port 2 for RS-485 serial
(2-Wire)
1TX/RX+ In/Out
2TX/RX– In/Out
3 SIG COM*
4IRQ+ In
5IRQ– In
Port 1 for RS-232 serial
6TX Out
7RX In
8GND
9RTS Out
10 CTS In
* Isolated ground
Independent 10/100 Mbps Ethernet
interfaces (RJ-45 connectors)
8–32 VDC input power
(pluggable 3-pin connector)
Port 0 for RS-232 serial
communications (DB-9 connector)
with handshaking. Supports PPP by
default; for use with serial devices,
configure the port in PAC Manager.
Port 1 for RS-232 serial
communications (pins 6–10 of
pluggable 10-pin connector)
Port 2 for RS-485 serial
communications (pins 1–5 of
pluggable 10-pin connector)
DIP switches for RS-485 serial link
Controller reset button
STAT LED
Activity LED (Yellow)
Link LED (Green)
MicroSD card slot
WLAN LED
Wireless LAN antenna
Bias
Termination
SNAP PAC S-Series Controllers
Opto 22 • 43044 Business Park Drive • Temecula, CA 92590-3614 • www.opto22.com
SALES 800-321-6786 • 951-695-3000 • FAX 951-695-3095 • sales@opto22.com • SUPPORT 800-835-6786 • 951-695-3080 • FAX 951-695-3017 • support@opto22.com
© 2006–2012 Opto 22. All rights reserved. Dimensions and specifications are subject to change. Brand or product names used herein are trademarks or registered trademarks of their respective companies or organizations.
SNAP PAC S-Series Controllers
PAGE
14
DATA SHEET
Form 1584-121205
SNAP-PAC-S2 Connectors and Indicators
Status and Activity LEDs
Indicator Description
TX0/RX0 Serial activity on port 0
TX1/RX1 Serial activity on port 1
TX2/RX2 Serial activity on port 2
TX3/RX3 Serial activity on port 3
STAT Startup status and control
program operational status
ACT Ethernet network activity
LINK Link established with Ether-
net network
RS-485 and RS-232 Ports1
Pin RS-232 Signal
Direction RS-485 Signal
Direction
1 TX Out TX/RX+ In/Out
2RX In TX/RX–In/Out
3COM
2COM2
4 RTS Out RX+ (4 wire) In
5 CTS In RX- (4 wire) In
6DTR Out IRQ+ In
7 DCD In IRQ– In
1 CAUTION: Do not use communication port connectors from a
legacy OptoControl controller*. Legacy connectors will fit in a
SNAP-PAC-S2, but the pin orientation is different. Instead, use the
connectors supplied with the SNAP-PAC-S2 controller.
2 Isolated ground. (Each channel is isolated from the others.)
*Legacy OptoControl Controllers:
G4LC32
G4LC32SX
G4LC32ISA
G4LC32ISA-LT
M4
M4IO
M4RTU
SNAP-LCM4
SNAP-LCSX/PLUS
Independent 10/100 Mbps Ethernet
interfaces (RJ-45 connectors)
8–32 VDC input power
(pluggable 3-pin connector)
Ports 0 - 3 are each software
configurable as either
RS-232 (TX, RX, COM, DTR, DCD
RTS, CTS), or
RS-485 (2-wire, 4-wire, optional
termination, optional biasing).
Configure ports in PAC
Manager.
Controller reset button
STAT LED
Activity LED (Yellow)
Link LED (Green)
Serial activity LEDs
Serial activity LEDs
MicroSD card slot
SNAP PAC S-Series Controllers
Opto 22 • 43044 Business Park Drive • Temecula, CA 92590-3614 • www.opto22.com
SALES 800-321-6786 • 951-695-3000 • FAX 951-695-3095 • sales@opto22.com • SUPPORT 800-835-6786 • 951-695-3080 • FAX 951-695-3017 • support@opto22.com
© 2006–2012 Opto 22. All rights reserved. Dimensions and specifications are subject to change. Brand or product names used herein are trademarks or registered trademarks of their respective companies or organizations.
SNAP PAC S-Series Controllers DATA SHEET
Form 1584-121205
PAGE
15
SNAP-PAC-S2-W Connectors and Indicators (Wired+Wireless)
Status and Activity LEDs
Indicator Description
TX0/RX0 Serial activity on port 0
TX1/RX1 Serial activity on port 1
TX2/RX2 Serial activity on port 2
TX3/RX3 Serial activity on port 3
STAT Startup status and control program
operational status
ACT Ethernet network activity
LINK Link established with Ethernet network
WLAN Wireless LAN status
RS-485 and RS-232 Ports1
Pin RS-232 Signal
Direction RS-485 Signal
Direction
1 TX Out TX/RX+ In/Out
2RX In TX/RX–In/Out
3COM
2COM2
4RTS Out RX+ (4 wire)In
5 CTS In RX- (4 wire) In
6DTR Out IRQ+ In
7 DCD In IRQ– In
1 CAUTION: Do n ot use communication port connectors from a
legacy OptoControl controller*. Legacy connectors will fit in a
SNAP-PAC-S2, but the pin orientation is different. Instead, use the
connectors supplied with the SNAP-PAC-S2 controller.
2 Isolated ground. (Each channel is isolated from the others.)
*Legacy OptoControl Controllers:
G4LC32
G4LC32SX
G4LC32ISA
G4LC32ISA-LT
M4
M4IO
M4RTU
SNAP-LCM4
SNAP-LCSX/PLUS
Independent 10/100 Mbps Ethernet
interfaces (RJ-45 connectors)
8–32 VDC input power
(pluggable 3-pin connector)
Ports 0 - 3 are each software
configurable as either
RS-232 (TX, RX, COM, DTR, DCD
RTS, CTS), or
RS-485 (2-wire, 4-wire, optional
termination, optional biasing).
Configure ports in PAC
Manager.
Controller reset button
STAT LED
Activity LED (Yellow)
Link LED (Green)
Serial activity LEDs
Serial activity LEDs
MicroSD card slot
WLAN LED
Wireless LAN antenna
SNAP PAC S-Series Controllers
Opto 22 • 43044 Business Park Drive • Temecula, CA 92590-3614 • www.opto22.com
SALES 800-321-6786 • 951-695-3000 • FAX 951-695-3095 • sales@opto22.com • SUPPORT 800-835-6786 • 951-695-3080 • FAX 951-695-3017 • support@opto22.com
© 2006–2012 Opto 22. All rights reserved. Dimensions and specifications are subject to change. Brand or product names used herein are trademarks or registered trademarks of their respective companies or organizations.
SNAP PAC S-Series Controllers
PAGE
16
DATA SHEET
Form 1584-121205
Dimensional Drawings
SNAP-PAC-S1 and SNAP-PAC-S1-FM Panel Mounting
and Dimensions
For SNAP-PAC-S1-W dimensions, see page 20
SNAP PAC S-Series Controllers
Opto 22 • 43044 Business Park Drive • Temecula, CA 92590-3614 • www.opto22.com
SALES 800-321-6786 • 951-695-3000 • FAX 951-695-3095 • sales@opto22.com • SUPPORT 800-835-6786 • 951-695-3080 • FAX 951-695-3017 • support@opto22.com
© 2006–2012 Opto 22. All rights reserved. Dimensions and specifications are subject to change. Brand or product names used herein are trademarks or registered trademarks of their respective companies or organizations.
SNAP PAC S-Series Controllers DATA SHEET
Form 1584-121205
PAGE
17
Dimensional Drawings (continued)
SNAP-PAC-S1 and SNAP-PAC-S1-FM DIN-Rail Mounting
and Dimensions
Requires a SNAP-PSDIN adapter (purchased separately).
SNAP PAC S-Series Controllers
Opto 22 • 43044 Business Park Drive • Temecula, CA 92590-3614 • www.opto22.com
SALES 800-321-6786 • 951-695-3000 • FAX 951-695-3095 • sales@opto22.com • SUPPORT 800-835-6786 • 951-695-3080 • FAX 951-695-3017 • support@opto22.com
© 2006–2012 Opto 22. All rights reserved. Dimensions and specifications are subject to change. Brand or product names used herein are trademarks or registered trademarks of their respective companies or organizations.
SNAP PAC S-Series Controllers
PAGE
18
DATA SHEET
Form 1584-121205
Dimensional Drawings (continued)
SNAP-PAC-S2 Panel Mounting and Dimensions
For SNAP-PAC-S2-W dimensions, see page 21
SNAP PAC S-Series Controllers
Opto 22 • 43044 Business Park Drive • Temecula, CA 92590-3614 • www.opto22.com
SALES 800-321-6786 • 951-695-3000 • FAX 951-695-3095 • sales@opto22.com • SUPPORT 800-835-6786 • 951-695-3080 • FAX 951-695-3017 • support@opto22.com
© 2006–2012 Opto 22. All rights reserved. Dimensions and specifications are subject to change. Brand or product names used herein are trademarks or registered trademarks of their respective companies or organizations.
SNAP PAC S-Series Controllers DATA SHEET
Form 1584-121205
PAGE
19
Dimensional Drawings (continued)
SNAP-PAC-S2 DIN-Rail Mounting and Dimensions
Requires a SNAP-S2DIN adapter (purchased separately).
SNAP PAC S-Series Controllers
Opto 22 • 43044 Business Park Drive • Temecula, CA 92590-3614 • www.opto22.com
SALES 800-321-6786 • 951-695-3000 • FAX 951-695-3095 • sales@opto22.com • SUPPORT 800-835-6786 • 951-695-3080 • FAX 951-695-3017 • support@opto22.com
© 2006–2012 Opto 22. All rights reserved. Dimensions and specifications are subject to change. Brand or product names used herein are trademarks or registered trademarks of their respective companies or organizations.
SNAP PAC S-Series Controllers
PAGE
20
DATA SHEET
Form 1584-121205
Dimensional Drawings (continued)
SNAP-PAC-S1-W Dimensions
SNAP PAC S-Series Controllers
Opto 22 • 43044 Business Park Drive • Temecula, CA 92590-3614 • www.opto22.com
SALES 800-321-6786 • 951-695-3000 • FAX 951-695-3095 • sales@opto22.com • SUPPORT 800-835-6786 • 951-695-3080 • FAX 951-695-3017 • support@opto22.com
© 2006–2012 Opto 22. All rights reserved. Dimensions and specifications are subject to change. Brand or product names used herein are trademarks or registered trademarks of their respective companies or organizations.
SNAP PAC S-Series Controllers DATA SHEET
Form 1584-121205
PAGE
21
Dimensional Drawings (continued)
SNAP-PAC-S2-W Dimensions
More About Opto 22
www.opto22.com • Opto 22 • 43044 Business Park Drive • Temecula, CA 92590-3614 • Form 1335-121205
SALES 800-321-6786 • 951-695-3000 • FAX 951-695-3095 • sales@opto22.com • SUPPORT 800-835-6786 • 951-695-3080 • FAX 951-695-3017 • support@opto22.com
© 2012 Opto 22. All rights reserved. Dimensions and specifications are subject to change. Brand or product names used herein are trademarks or registered trademarks of their respective companies or organizations.
Products
Opto 22 develops and manufactures reliable, flexible, easy-to-
use hardware and software products for industrial automation,
energy management, remote monitoring, and data
acquisition applications.
OptoEMU Energy Management System
The easy-to-use OptoEMU Sensor monitors electrical energy
use in your facility and delivers detailed, real-time data you
can see, analyze, and use in building and control systems. The
Sensor can monitor energy data from pulsing meters,
electrical panels or subpanels, and equipment. View energy
data online using a software service or incorporate the data
into your control system for complete energy management.
SNAP PAC System
Designed to simplify the typically complex
process of selecting and applying an
automation system, the SNAP PAC
System consists of four integrated
components:
•SNAP PAC controllers
•PAC Project™ Software Suite
•SNAP PAC brains
•SNAP I/O™
SNAP PAC Controllers
Programmable automation controllers
(PACs) are multifunctional, modular controllers based on
open standards.
Opto 22 has been manufacturing PACs for over two decades.
The standalone SNAP PAC S-series, the rack-mounted SNAP
PAC R-series, and the software-based SoftPAC™ all handle a
wide range of digital, analog, and serial functions for data
collection, remote monitoring, process control, and discrete
and hybrid manufacturing.
SNAP PACs are based on open Ethernet and Internet Protocol
(IP) standards, so you can build or extend a system easily,
without the expense and limitations of proprietary networks
and protocols. Wired+Wireless™ models are also available.
PAC Project Software Suite
Opto 22’s PAC Project Software Suite provides full-featured,
cost-effective control programming, HMI (human machine
interface) development and runtime, OPC server, and
database connectivity software for your SNAP PAC System.
Control programming includes both easy-to-learn flowcharts
and optional scripting. Commands are in plain English;
variables and I/O point names are fully descriptive.
PAC Project Basic offers control and HMI tools and is free for
download on our website, www.opto22.com. PAC Project
Professional, available for separate purchase, adds one
SoftPAC, OptoOPCServer, OptoDataLink, options for controller
redundancy or segmented networking, and support for legacy
Opto 22 serial mistic™ I/O units.
SNAP PAC Brains
While SNAP PAC controllers provide central control and data
distribution, SNAP PAC brains provide distributed intelligence
for I/O processing and communications. Brains offer analog,
digital, and serial functions, including thermocouple
linearization; PID loop control; and optional high-speed digital
counting (up to 20 kHz), quadrature counting, TPO, and pulse
generation and measurement.
SNAP I/O
I/O provides the local connection to sensors and equipment.
Opto 22 SNAP I/O offers 1 to 32 points of reliable I/O per
module, depending on the type of module and your needs.
Analog, digital, and serial modules are all
mixed on the same mounting rack and
controlled by the same processor (SNAP
PAC brain or rack-mounted controller).
Quality
Founded in 1974, Opto 22 has established
a worldwide reputation for high-quality
products. All are made in the U.S.A. at our
manufacturing facility in Temecula,
California. Because we do no statistical
testing and each part is tested twice
before leaving our factory, we can
guarantee most solid-state relays and
optically isolated I/O modules for life.
Free Product Support
Opto 22’s California-based Product Support Group offers free,
comprehensive technical support for Opto 22 products. Our
staff of support engineers represents decades of training and
experience. Support is available in English and Spanish by
phone or email, Monday–Friday, 7 a.m. to 5 p.m. PST.
Additional support is always available on our website: how-to
videos, OptoKnowledgeBase, self-training guide,
troubleshooting and user’s guides, and OptoForums.
In addition, hands-on training is available for free at our
Temecula, California headquarters, and you can register online.
Purchasing Opto 22 Products
Opto 22 products are sold directly and through a worldwide
network of distributors, partners, and system integrators. For
more information, contact Opto 22 headquarters at 800-321-
6786 or 951-695-3000, or visit our website at
www.opto22.com.
www.opto22.com
