OPTO 22 SNAP-PAC-S1 User manual

SNAP PAC S-SERIES CONTROLLER
USER’S GUIDE
SNAP-PAC-S1
SNAP-PAC-S2
Form 1592-071126—November, 2007
43044 Business Park Drive • Temecula • CA 92590-3614
Phone: 800-321-OPTO (6786) or 951-695-3000
Fax: 800-832-OPTO (6786) or 951-695-2712
www.opto22.com
Product Support Services
800-TEK-OPTO (835-6786) or 951-695-3080
Fax: [phone]
Email: [e-mail]
Web: support.opto22.com

SNAP PAC S-Series User’s Guide
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SNAP PAC S-Series User’s Guide
Form 1592-071126—November, 2007
Copyright © 2005–2007 Opto 22.
All rights reserved.
Printed in the United States of America.
The information in this manual has been checked carefully and is believed to be accurate; however, Opto 22 assumes no
responsibility for possible inaccuracies or omissions. Specifications are subject to change without notice.
Opto 22 warrants all of its products to be free from defects in material or workmanship for 30 months from the
manufacturing date code. This warranty is limited to the original cost of the unit only and does not cover installation, labor, or
any other contingent costs. Opto 22 I/O modules and solid-state relays with date codes of 1/96 or later are guaranteed for life.
This lifetime warranty excludes reed relay, SNAP serial communication modules, SNAP PID modules, and modules that
contain mechanical contacts or switches. Opto 22 does not warrant any product, components, or parts not manufactured by
Opto 22; for these items, the warranty from the original manufacturer applies. These products include, but are not limited to,
OptoTerminal-G70, OptoTerminal-G75, and Sony Ericsson GT-48; see the product data sheet for specific warranty
information. Refer to Opto 22 form number 1042 for complete warranty information.
Cyrano, Opto 22 FactoryFloor, Optomux, and Pamux are registered trademarks of Opto 22. Generation 4, ioControl, ioDisplay,
ioManager, ioProject, ioUtilities, mistic, Nvio, Nvio.net Web Portal, OptoConnect, OptoControl, OptoDataLink, OptoDisplay,
OptoOPCServer, OptoScript, OptoServer, OptoTerminal, OptoUtilities, PAC Control, PAC Display, PAC Manager, PAC Project,
SNAP Ethernet I/O, SNAP I/O, SNAP OEM I/O, SNAP PAC System, SNAP Simple I/O, SNAP Ultimate I/O, and SNAP Wireless LAN
I/O are trademarks of Opto 22.
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trademarks of Microsoft Corporation in the United States and other countries. Linux is a registered trademark of Linus
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Engineering Corporation. Nokia, Nokia M2M Platform, Nokia M2M Gateway Software, and Nokia 31 GSM Connectivity
Terminal are trademarks or registered trademarks of Nokia Corporation. Sony is a trademark of Sony Corporation. Ericsson is a
trademark of Telefonaktiebolaget LM Ericsson.
All other brand or product names are trademarks or registered trademarks of their respective companies or organizations.

SNAP PAC S-Series User’s Guide iii
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Table of Contents
Chapter 1: Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Ethernet Communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Serial Communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Backward Compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Software. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Software Availability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Architectural Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Connections to Serial-based I/O Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
SNAP-PAC-S2 Connections to Serial-based I/O Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Ethernet Link Redundancy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Remote Host and I/O Unit Connections Using PPP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Ethernet Connections to Host and I/O Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
About This Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Related Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
For Help . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Chapter 2: Quick Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Installing and Configuring the Controller. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
What You Will Need . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Installing Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Power Supply Recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Change to SNAP-PAC-S1 Power Input Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Installing Hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
RS-232 and RS-485 Serial Networking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
RS-232 Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Attaching the Modem to the Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

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RS-485 Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Wiring the 10-pin Serial Connector on the SNAP-PAC-S1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Wiring the 7-pin Serial Connector on the SNAP-PAC-S2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Serial Wiring Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Assigning an IP Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Assigning Serial Ports on the SNAP-PAC-S2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Mounting the Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Panel Mounting and Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
DIN-Rail Mounting and Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
About the Controller’s Memory Map. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Using Data for Peer-to-Peer Communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
What’s Next? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Chapter 3: Maintenance and Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Checking Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
Communicating on an Ethernet Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
Pinging the Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
Solving Network Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
Create a Network Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
Check Ethernet Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
Analyze Communication Packets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
Have Your Network Certified . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
TCP Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
Communicating on a Serial Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
Maintaining the Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Backup Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
Getting Device and Firmware Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
Changing the Controller’s IP Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
Resetting the Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
Loading New Firmware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
Setting Time and Date . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
STAT LED Blink Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
Serial Port LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39

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Appendix A: Technical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
SNAP-PAC-S1 Connectors, Indicators, and Pinouts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
SNAP-PAC-S2 Connectors, Indicators, and Pinouts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Appendix B: PPP Support in Microsoft Windows . . . . . . . . . . . . . . . . . . . . . . . . .45
Configuring PPP Support in Microsoft Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Configuring Microsoft Windows Dial-up Networking on Windows XP . . . . . . . . . . . . . . . . . . . . . . . . 45
Configuring Microsoft Windows Dial-up Networking on Windows NT . . . . . . . . . . . . . . . . . . . . . . . . 48
Configuring Microsoft Windows Dial-up Networking on Windows 2000 . . . . . . . . . . . . . . . . . . . . . 49
Setting Up a Remote Access Server on the PC (Windows 2000 Advanced Server) . . . . . . . . . . . . . . 52
Setting Up a Remote Access Server on the PC (Windows NT) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

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SNAP PAC S-Series User’s Guide 1
1
Chapter 1
Overview
Introduction
The SNAP-PAC-S1 and SNAP-PAC-S2
programmable automation controllers
provide 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 a
PAC Control strategy can actually contain a much larger number of flowcharts. The total number of
flowcharts is limited only by the controller memory available for strategy storage.
Ethernet Communication
The SNAP PAC S-series programmable 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-S2
controller

INTRODUCTION
SNAP PAC S-Series User’s Guide
2
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.
Serial Communication
SNAP PAC S-series controllers provide RS-232 and RS-485 communication as follows:
•The SNAP-PAC-S1 has 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. One of the RS-232 ports (port 0) can be connected to a modem using
PPP. The PAC S1 also has one pluggable two-wire RS-485 port that can be used for PAC or
mistic serial I/O units.
•The SNAP-PAC-S2 has four serial ports that can be configured using PAC Manager as either
RS-232 or RS-485 serial ports, and which can be used for either I/O or general purpose serial
communication. One port on the SNAP-PAC-S2 may used for PPP communication. For the
default configuration settings of these ports, see “Assigning Serial Ports on the SNAP-PAC-S2”
on page 21.
The RS-232 serial ports support remote serial device communication as well as Point-to-Point
Protocol (PPP) modem connections for creating TCP/IP networks over serial or PSTN (Public
Switched Telephone Network) lines. The RS-485 serial ports connect to legacy Opto 22 mistic™ I/O
units, including the serial B3000 brain and remote mistic bricks.
For additional serial interfaces, you can add one or more SNAP serial communication modules on
attached SNAP Ethernet-based I/O units.
Backward Compatibility
The SNAP-PAC-S1 controller has an RS-485 serial interface for connecting to Opto 22 mistic I/O units.
The SNAP-PAC-S2 controller can be configured with up to four RS-485 serial ports for connecting to
Opto 22 mistic I/O units.This connectivity with serial-based I/O systems, combined with PAC Control
Professional software’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).

CHAPTER 1: OVERVIEW
SNAP PAC S-Series User’s Guide 3
3
Software
SNAP PAC controllers use Opto 22’s PAC Project Microsoft®Windows®-compatible automation
software for programming, human-machine-interface (HMI) development, and OPC 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
OptoOPCServer™ software for exchanging data with OPC 2.0-compliant client software
applications and OptoDataLink™ for sharing SNAP PAC System data with ODBC-compliant
databases.
The PAC Project software suite includes the following applications:
• 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 the capability to import OptoControl strategies, support for
mistic I/O units, and using 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.
• 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.

ARCHITECTURAL DIAGRAMS
SNAP PAC S-Series User’s Guide
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Software Availability
PAC Project Basic is included with SNAP PAC controllers and is a free download from the Opto 22
Web site. PAC Project Professional is available for purchase. You can also separately purchase PAC
Control Professional, PAC Display Professional, OptoOPCServer, and OptoDataLink as needed. For
additional information, see the PAC Project Data Sheet, Opto 22 form 1699.
Architectural Diagrams
Because SNAP PAC S-series controllers have multiple Ethernet and serial interfaces, these controllers
are suitable for use in a variety of system layouts and architectures. Dual independent Ethernet
interfaces, for example, let you configure a network for link redundancy or segmented networking. A
PPP serial interface provides a dial-up modem link for remotely located control systems, while
two-wire RS-485 support integrates existing Opto 22 mistic serial-based I/O units into contemporary
Ethernet-based systems.