Using FreeWave Wireless with EtherNet I/P for Rockwell Solutions Curt Goldman- Business Development Manager Randy Maes- Rockwell Specialist October 4, 2011

FreeWave EtherNet for Rockwell Agenda EtherNet I/P Basics Radio Modem Basics – WiFi vs. FreeWave FHSS 900 MHz FreeWave EtherNet Product Offering Applications using Rockwell with EtherNet I/P Wireless © 2011 FreeWave Technologies, Inc. 4/19/2017

Not all EtherNet is created equal FreeWave Modems and EtherNet/IP

EtherNet/IP Basics

EtherNet IP Basics EtherNet/IP was developed by Rockwell as their EtherNet communications protocol Adopted and now managed by the ODVA (Open DeviceNet Vendors Association) as the standard for Industrial Automation EtherNet communications Uses CIP (Common Industrial Protocol) in its upper layer Two basic versions UDP/IP TCP/IP © 2011 FreeWave Technologies, Inc. 4/19/2017 5

EtherNet IP Basics UDP/IP Implicit messaging Also referred to as “Producer/Consumer” Designed for I/O data exchange Connection is “always on” Data is always being exchanged Depending on size of network, can be very “bandwidth” intensive If four packets in a row are missed, the connection is broken and re- established This will take upwards of eight seconds No message instruction needed in ladder logic to move data from one point to another Only available in Logix based processors (ControlLogix, CompactLogix) © 2011 FreeWave Technologies, Inc. 4/19/2017 6

EtherNet IP Basics TCP/IP Explicit messaging “Message Instruction” based communications Only active when a message instruction is enabled Requires ladder logic Not bandwidth intensive Available in all EtherNet enabled Allen Bradley processors © 2011 FreeWave Technologies, Inc. 4/19/2017 7

Radio Modem Basics

Radio Modem Basics In the Industrial Automation world, there are two basic types of radio modems used for EtherNet communications DSSS 802.11(x) or WiFi FHSS 900MHz Frequency Hopping Spread Spectrum © 2011 FreeWave Technologies, Inc. 4/19/2017 9

Radio Modem Basics 802.11 compared to FHSS 2.4GHz and/or 5.8GHz frequency range Can operate as a Peer to Peer network Typically higher throughput speed “Open” protocol Any WiFi device can connect with any other WiFi device Easily interfered with (when compared to FHSS) Consumer based products Chip sets, supporting components manufactured for consumer market Usually means lower quality because of “mass production” Sharing frequency bandwidth the all other “WiFi” products Typically much lower transmit power 250mW considered high power Much lower receiver sensitivity -94 dBm @ 1Mbps* -72d Bm @ 54Mbps* *Rated Mbps is “over the air” rating. Actual throughput is usually less than half rated speed © 2011 FreeWave Technologies, Inc. 4/19/2017 10

Radio Modem Basics FHSS compared to 802.11 900MHz frequency range (typically) Much more robust than DSSS Operates as a “Master/Slave” network “Proprietary” protocol Only FreeWave modems will talk with FreeWave modems Very difficult to interfere with Very solid communications even in harsh RF environments Industrial grade products Chip sets, supporting components manufactured for industrial market Typically much higher transmit power 1 watt output Much higher receiver sensitivity -110 dBm @ 115Kbps -96 dBm @ 867Kbps © 2011 FreeWave Technologies, Inc. 4/19/2017 11

Security

Security Because “WiFi” is an “open” standard, security needs to be handled at the application layer Any WiFi radio will connect with any other WiFi radio at the RF level To make the application secure, encryption must be added to the application layer Encryption adds data and processing to the data layer © 2011 FreeWave Technologies, Inc. 4/19/2017 13

Security FreeWave’s FHSS radios use a proprietary or “closed” RF protocol Only a FreeWave Radio will connect to a FreeWave radio Close protocol radios provide a level of security that cannot be matched with encryption Because encryption is required by spec in many applications FreeWave does offer AES 128 bit encryption © 2011 FreeWave Technologies, Inc. 4/19/2017 14

Product Offerings

FreeWave EtherNet Product Offering “ Plus” stands for EtherNet(“packet radio”) FGR2-PE Family Long distance HTplus Family High throughput

Product Positioning Fast HTplus-RE FGR2-PE Far 1.2 Mbps 867 kbps 10 mi 20 mi 30 mi 40 mi 50 mi 60 mi HTplus-RE FGR2-PE Far DISCLAIMER: Actual results may vary and depend on individual RF conditions such as Antenna height, RF link, Interference etc. The information contained herein is based on assumptions and tests which we believe to be reliable but is not guaranteed by us as being accurate and does not purport to be a complete statement or summary of the available data. The owner, publisher, editor and their associates are not responsible for errors and omissions. Any opinions expressed are subject to change without notice. We encourage customers to supplement the information in this graphic with independent research and other professional advice.

FGR2-PE LONG RANGE Industrial EtherNet data radio Two serial ports(EIA-232/422/485) Two EtherNet ports (10/100), switched New rugged enclosure Installation friendly, all connectors and lights on one side Backwards compatible with FGRplus 115 kbps RF data rate Din Rail Mount Shoe Mount © 2011 FreeWave Technologies, Inc. Company Confidential 18

FGR2-PE Value Proposition Superior RF Performance Sensitivity & Selectivity Multiple Protocol Both serial & EtherNet Maximum Flexibility Single Radio Solution Rugged & Reliable -40° to +75° C Temperature range Secure © 2011 FreeWave Technologies, Inc. Company Confidential 19

Security Multi-Layered Approach Frequency Hopping Spread Spectrum Call Book (Point-to-Point) Radius Authentication SSL (Transport Layer Security) Encryption (AES) VLAN (Privacy) MAC Address Filtering © 2011 FreeWave Technologies, Inc. Company Confidential 20

HTplus-RE High speed EtherNet radio 867 Kbps over-the-air data rate Superior interference rejection Range of 15 miles -40° to +60° C Temperature range Multiple protocol, serial & EtherNet Gateway, Endpoint, or Repeater in one radio 21

HTplus-RE Value Proposition Security AES 128 bit Radius Central Authentication VLAN Tagging SNMP Mac filtering Fast Hopping Provides superior interference rejection Current hop rate is 500-1000 x per second Over the air data rate up to 867 Kbps Data rate at ~540 Kbps @ 867 Data rate at ~360Kbps @ 614 Range 15 mile link with LOS Ability to extend further through repeaters Error Free Communications 32 bit CRC with automatic retransmission Receive sensitivity -102dBm (10-4 BER)

Applications

Applications When creating an application that needs wireless EtherNet communications, the goals of the application needs to be looked at first How robust must the application be? How crowded is the RF environment? How much data really needs to be moved from one processor to another? © 2011 FreeWave Technologies, Inc. 4/19/2017 24

Applications UDP/IP With UDP/IP a connection: A connection is established between the consuming processor and the producing processor This connection uses missing packets to determine the health of the connection There is no “flow control” in UDP/IP other than RPI (Requested Packet Interval) RPI controls how frequently a packet will be “produced/consumed” but does not control when this takes place With lack of flow control, it is possible to have any number of packets to be “in transit” at the same time There is no “Master/Slave” relationship within a given network

Applications UDP/IP UDP/IP connection do’s: UDP/IP connection don’ts Determine what data really needs to be moved from one processor to another and only move those tags and/or I/O points Set the RPI to the highest number that the application will tolerate Structure your application so that one processor is the network master (host) and connect that processor with the radio network gateway (master) Use “Rack Optimization” whenever possible UDP/IP connection don’ts Don’t forget your radio network is a “master/slave” type network Underestimate the amount of bandwidth that UDP/IP can consume

Applications TCP/IP With TCP/IP connection: When a message instruction is enabled; A connection is established The data is sent and acknowledged The connection is closed It is very easy to provide “flow control” While any processor in the network can initiate communications, best practice is to have a network master controlling all of the communications

Applications TCP/IP TCP/IP connection do’s: TCP/IP connection don’ts Stagger message your message instructions Structure you network so that one processor is the network master (host) and connect that processor with the radio network gateway (master) Only move data that really needs to be moved from one processor to another TCP/IP connection don’ts Don’t forget that the radio network is a “master/slave” type network

Summary Whether or not you are using UDP/IP or TCP/IP always remember to plan ahead. It’s common that the wireless aspect of an application is overlooked when in the planning stage. This can result in poor performance and a troublesome system. While “WiFi” type radios appear on the surface to “cover it all” the reality is they can’t compete with the robustness, reliability and security that is provided with FreeWave’s FHSS radios. With a little upfront planning and remembering the wireless system when setting your goals it is possible to have not only all of the application needs met but also having them met with the highest level of security and reliability possible in today’s wireless world. © 2011 FreeWave Technologies, Inc. 4/19/2017 29