SNAP-PAC-ROK
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SNAP-PAC-ROK

$2,745.00 (USA and Canada only)

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SNAP PAC Redundancy Option Kit

Production Specification

The SNAP PAC Redundancy Option Kit includes the hardware and documentation you need to develop a control system with redundant controllers. Such a system provides an increased level of reliability that can survive single points of failure and improve your system’s mean time between failures (MTBF).

The kit includes a SNAP-PAC-SRA arbiter, a SNAP-RPSW redundant power switch, and the SNAP PAC Redundancy Option User’s Guide, form 1831. You will also need the following:

SNAP-PAC-SRA

Power Requirements

8–32 VDC, 4 W

Memory

16 MB RAM

Backup battery for real-time clock

Rechargeable (recharges whenever the arbiter has power). 5-year life when power is off.

Environmental
  Operating temperature
  Storage temperature
  Humidity

 

-0 °C to 60 °C
-40 °C to 85 °C
0% to 95% relative humidity, non-condensing

Wired Ethernet Network Interface

IEEE 802.3 network, 10Base-T and 100Base-TX. Automatic MDC/MDI-X crossover (Ethernet crossover cable not required for direct connection to PC).

Maximum Ethernet Segment Length

100 meters with Category 5 or superior UTP
For 100 Mbps at this distance, use Category 5 or superior solid UTP.

Serial Interfaces (2)

RS-485 twisted pair(s), with shield

Serial Data Rates

300 baud to 230.4 Kbaud

SNAP-RPSW

Max Switch Volts

32 VDC

Max Switch Current

4 amps DC at 70 °C

Operating Range

VDC

Switch Control (normally closed):

 
Off 8–32 VDC (3 mA–15 mA)
On < = 2 VDC (< 0.5 mA).

SNAP PAC Redundancy Option Kit Data Sheet

This data sheet describes the SNAP PAC Redundancy Option Kit, which includes a SNAP-PAC-SRA arbiter, a SNAP-RPSW redundant power switch, and the SNAP PAC Redundancy Option User’s Guide, form 1831.

The SNAP PAC Redundancy Option Kit provides you the tools you need to develop a control system with redundant controllers that provides an increased level of reliability that can survive single points of failure and improve your system’s mean time between failures (MTBF).

SNAP-PAC-SRA Arbiter README

This README file lists revision changes made to the firmware used in the SNAP-PAC-SRA Arbiter, which is included in the SNAP PAC Redundancy Option Kit, part number SNAP-PAC-ROK.

SNAP PAC Redundancy Option User's Guide

This guide describes how to set up an Opto 22 control system with controller-level redundancy. It is intended to be used with the SNAP PAC Redundancy Option Kit, part number SNAP-PAC-ROK.

SNAP-ROKDIN Installation Note

This installation note shows you how to install the SNAP-ROKDIN DIN-rail adapter kit on a SNAP device, such as a SNAP-PAC-SRA arbiter or a SNAP-RPSW redundant power switch.

SNAP-PAC-S1 Controller Firmware

This download contains current firmware for the SNAP-PAC-S1 and SNAP-PAC-S1-FM controllers. Current firmware for all SNAP PAC brains and controllers is available in a single download here.


NOTE: Opto 22 recommends that you always use the most recent release of PAC Manager. Depending on the shipment date or the version number of the firmware currently installed on your SNAP-PAC-S controller, older versions of PAC Manager cannot install certain levels of firmware:

  • As of February 22, 2022, some SNAP-PAC-S controllers ship with new Ethernet components, along with PAC Firmware R10.4d (or higher) and new bootloader firmware to support the new components. PAC Firmware R10.4d (or higher) will not permit installing firmware lower than R10.4d on these controllers. To update firmware on these controllers, you need PAC Manager R10.4b or higher, installed by one of these methods:
    • PAC Project 10.4002 or higher
    • Build 7 of the R10.4b PAC Manager installer (or higher), identifiable by the file name PAC_Manager_R10.4b-7.exe. If you are not sure that PAC Manager was installed by build 7 of the installer, you can find the installer version number by clicking Control Panel > Programs (or Programs and Features), then scrolling down the list of programs until you find “Opto22 PAC Manager”. Next to it, it should say “R10.4b build 7”.
  • Effective April 2, 2018, some SNAP PAC controllers and brains have new flash components. These units shipped with firmware R9.5g (or higher) and new bootloader firmware. PAC firmware versions R9.5f and lower are not compatible with the new component. If you inadvertently install firmware R9.5f or lower on one of these units, you can recover by using the Failsafe Bootloader Mode to install firmware R9.5g or higher.
    • For more information about the new flash component, see KB87213.
    • For details on Failsafe Bootloader Mode, see "Replacing Damaged Firmware" in the PAC Manager User's Guide (form 1704).

See the README document for information on changes and fixes in the current version of this product's firmware.

SNAP-PAC-S1-W Controller Firmware

This download contains current firmware for the SNAP-PAC-S1-W controller. 
Current firmware for all SNAP PAC brains and controllers is available in a single download here.

SNAP-PAC-S2 Controller Firmware

This download contains current firmware for the SNAP-PAC-S2 controller. Current firmware for all SNAP PAC brains and controllers is available in a single download here.


NOTE: Opto 22 recommends that you always use the most recent release of PAC Manager. Depending on the shipment date or the version number of the firmware currently installed on your SNAP-PAC-S controller, older versions of PAC Manager cannot install certain levels of firmware:
  • As of February 22, 2022, some SNAP-PAC-S controllers ship with new Ethernet components, along with PAC Firmware R10.4d (or higher) and new bootloader firmware to support the new components. PAC Firmware R10.4d (or higher) will not permit installing firmware lower than R10.4d on these controllers. To update firmware on these controllers, you need PAC Manager R10.4b or higher, installed by one of these methods:
    • PAC Project 10.4002 or higher
    • Build 7 of the R10.4b PAC Manager installer (or higher), identifiable by the file name PAC_Manager_R10.4b-7.exe. If you are not sure that PAC Manager was installed by build 7 of the installer, you can find the installer version number by clicking Control Panel > Programs (or Programs and Features), then scrolling down the list of programs until you find “Opto22 PAC Manager”. Next to it, it should say “R10.4b build 7”.
  • Effective April 2, 2018, some SNAP PAC controllers and brains have new flash components. These units shipped with firmware R9.5g (or higher) and new bootloader firmware. PAC firmware versions R9.5f and lower are not compatible with the new component. If you inadvertently install firmware R9.5f or lower on one of these units, you can recover by using the Failsafe Bootloader Mode to install firmware R9.5g or higher.
    • For more information about the new flash component, see KB87213.
    • For details on Failsafe Bootloader Mode, see "Replacing Damaged Firmware" in the PAC Manager User's Guide (form 1704).

See the README document for information on changes and fixes in the current version of this product's firmware.

SNAP-PAC-S2-W Controller Firmware

This download contains current firmware for the SNAP-PAC-S2-W controller. Current firmware for all SNAP PAC brains and controllers is available in a single download here.

SNAP-PAC-SRA Arbiter Firmware

Current firmware for the SNAP-PAC-SRA arbiter, part of the SNAP PAC Redundancy Option Kit.

Video: Webinar: Controller Redundancy in PAC Control 9

Learn how to implement controller redundancy in SNAP PAC systems.

SNAP PAC Networking

Learn the basics about dual ports, redundancy, segmenting, and daisy chaining of SNAP-PAC networking in this interactive demo.