NDP Gateway Manual (4-05)
Contents
1. Domain Name System ESD Ethernet Ethernet Address Firmware Interface Internet Address Internet Protocol IP Link Local Area Network LAN A service used with TCP IP to replace the previous method of keeping track with host names aliases and internet addresses The domain name service is a distributed database used to convert node names to internet addresses Electrostatic discharge A data link level protocol It comprises layers one and two when compared to the OSI reference model Ethernet is a broadcast technology and can be implemented with different media types such as thick or thin coaxial cable or twisted pair cable Ethernet uses CSMA CD mechanism to access the medium A 48 bit address commonly referred to as a hard address This address identifies an Ethernet network interface card NIC thus identifying a host hardware address Computer programs contained permanently in a hardware device as a read only memory A shared point between two entities either software or hardware A 32 bit address used to identify hosts and networks The part of the TCP IP protocol that handles routing of data Used to refer to a connection between two end points A collection of computer related equipment connected in sucha way that communication can occur between all nodes connected to the medium Management Information Base MIB A database containing configuration and statistical information MODBus NAFEM2. Installation amp RS485 Wiring N P Perl LEO LIPI Se Lor Friera y fe sy sar cay tati m Meena A cece ri i 0 19 dia a 3 3 9 Y Pin 12345 O e O 7 o 1 3 6789 0 12 Pi Device 1 Aet Used Ethernet 5 VDC Power Activity 2 Not Used RJ45 Pos Center LED 3 Not Used Ad Ethernet Ethernet JR Activity Link A Pea HRR LED LED Dimensions are in inches 7 Not Used 8 Not Used 9 Not Used NOTE If additional cables are needed for additional length or additional machines purchase Traulsen Kit Number 893512 NOTE Use proper ESD handling procedures when making connections to unit A UL Listed Class 2 power supply is supplied If the Gateway is connected to a DHCP enabled network it can be browsed at the address listed next to Browse at on the Gateway label Installation and RS485 Wiring continued Connect one end of one RJ 12 Machine cable Traulsen part no 893493 1 or 893493 2 to the Gateway Adapter Traulsen part no 893494 Connect the Gateway Adapter to the Gateway Connect the other end of the Machine Cable to one of the ports on the double port side of the Y Adapter Connector Traulsen part no 893902 Connect one end of the second RJ 12 Machine Cable Traulsen part no 893493 1 or 893493 2 to the single port side of theY Adapter Connector Connectthe other end of
3. Ethernet is an example of baseband technology The rate usually expressed in seconds that bits are transmitted Simultaneous transmission of the same data to all nodes connected to a network Stands for Category 5 cable which can be used for Ethernet networks Many 10BaseT networks use this standard which defines how the cable is manufactured and what the maximum data throughput on the cable is Traulsen recommends the use of Cat5 Cat5e or better cable to communicate between the NAFEM Gateway and the rest of the network A program that can be invoked by a user a user being a human or a program Terms used to refer to a peer to peer method of operation of applications within hosts The configuration of network devices Examples include BUS Star Ring Dual Ring etc A prescribed way of handling the establishment maintenance and termination of a logical link between two nodes The network gateway that a computer will use to access another network if another gateway is not specified for use In an Ethernet network this refers to the target node address Software that links the operating system to a peripheral device using a specific protocol The driver contains the precise machine language necessary to perform the functions requested by the application Software that automatically assigns IP addresses to client stations logging onto a TCP IP network It eliminates having to manually assign permanent IP addresses
4. NAFEM Gateway NDP1 Network Network Address Network Administrator Ping about nodes on a network A high level protocol for industrial networks it defines a request response message structure for a client server environment North American Association of Food Equipment Manufacturers A protocol converter that converts Hobart Traulsen equipment to the NAFEM protocol using an Ethernet connection A Gateway device that when used with compatible Hobart Traulsen equipment can make the system NAFEM Data Protocol compliant A collection of computers and related devices connected so that communication can occur In TCP IP networks this refers to the IP Address of a node The person designated to maintain the network This person should have working knowledge of network wiring requirements etc See System Administrator A program used with TCP IP networks The Ping program provides a way of testing access to a destination by sending an ICMP echo request then waiting for a response from the target host 15 Poll Engine A portion of the firmware code that requests polls data from the connected target equipment and stores that data for later use Protocol A set of rules governing the method of operation Protocol Conversion Changing one type of protocol to another type of protocol RS 485 A physical layer specification for connecting devices Server An application that answers requests from clients
5. SNMP Simple Network A widely used network monitoring and control protocol Data are Management Protocol passed from SNMP agents to SNMP managers used to oversee the network SNMP Agents Hardware and or software processes reporting activity in each network device hub router bridge etc using SNMP SNMP Manager Hardware and or software processes on a workstation console used to oversee the network that use SNMP Subnet Mask A mask used to determine to what subnet an IP address belongs Subnetting enables the network administrator to further divide the host part of the address into two or more sub networks or subnets Transmission Control Protocol A transport layer protocol that is part of the TCP IP protocol suite TCP provides a reliable stream mechanism performing re transmission when a positive acknowledgment is not returned to the source from the destination node TCP IP Transmission Control Protocol Internet Protocol TCP IP is an upper layer networking protocol It is client server based at the application layer TFTP Trivial File Transfer Protocol A TCP IP based application used for transferring files from one system to another that has no directory or password capability Web Server A computer that delivers Web pages to browsers and other files to applications via the HTTP protocol It includes the hardware operating system Web server software TCP IP protocols and site content Web pages and other files
6. reset the programmable attribute for the write operation to the previous write value LED DESCRIPTIONS Fig 2 The Ethernet Link LED is on continuously when there is an active Ethernet link between the Gateway and the rest of the network If the LED is off at any time check all power and network cables for proper connection The Ethernet Activity LED flashes intermittently as Ethernet traffic flows across the network to and from the Gateway Any time the Gateway sends or receives data the LED will flash and then turn off If the LED remains off for an extended period ensure that the Ethernet Link LED is on and that all power and network cables are properly connected The Device Activity LED flashes intermittently as serial data flows between the Gateway and the machines connected to it via the RS485 port Any time the Gateway sends or receives data the LED will flash briefly and then turn off The configuration of the Gateway will determine the interval between flashes Typically this interval is between 30 seconds and 5 minutes If there is no activity and the LED remains off for an extended period ensure that the Gateway is properly enabled all cables are properly connected and all machines connected to the Gateway are powered on DEVICE ETHERNET ETHERNET ACTIYITY ACTHITY LINEK LEO LED LEO i 1 o n 1 l 1 dt T F l SRGD EI EE N A 17 Fig 2 10 PROBLEM The computer is not recording data for any of the mach
7. 10BaseT A reference to the cabling used in an Ethernet network Meaning 10Megabits per second using baseband signaling and twisted pair cabling SERVICE Contact your local Traulsen service office for any repairs needed on this equipment Long term service contracts are available on this and other Traulsen products HOURS OF OPERATION Monday thru Friday 7 30 am 4 30 pm CST Traulsen amp Co Inc 4401 Blue Mound Road Fort Worth TX 76106 Phone 800 825 8220 Fax Svce 817 740 6757 Website www traulsen com Quality Refrigeration 16
8. Quality Refrigeration OPERATOR S MANUAL Instructions for the installation and operation of the optional NAFEM Data Protocol compliant communications gateway module for all Traulsen INTELA TRAUL equipped R and A Series models DG DATA PROTOCOL C 0 M P L l A T NAFEM GATEWAY MODEL NDP1 WERO Part Number 375 60232 00 Revised April 2005 TABLE OF CONTENTS Ela ld BR OER EO N e AA ea EO 3 Product Overview ES ARE Ee od EE AS kd BEE DS De SE ee E ES 4 Network Services 2d A ER RE DERE RARR EE Ae eae es 4 INSTALLATION SE cet cas Bee ees oes abou ee aa sews 5 Physical Locations ese Saw EE ett Ee SE EES es st DEE ER ee 5 Optimum Physical Location Configuration 0 0000 EE Ee ee eee 5 Ethernet Gateway Architecture Possible Configurations 6 Ethernet Wing EE ROETES Li eet A A a 7 Authentication and Registration 2 EE EE EE EER es 7 Installation amp RS485 WIrINd ss EE ESE ER SHE ARE iactedbendulesinagw ses 7 RS485 and MODBus Settings 0 2 00 cee eee 8 Gateway Configuration orar tros Katha ts Bae ete Se EA eee eas 9 TROUBLESHOOTING it gon etary eet GEE PERE are 10 LED Descriptions SEE ER EE A ahora aS 10 Problem Suggested Corrective Action oooooooooooooooooo ee 11 PINnGINSWUCHONS RE ET OE Sd bby PES ER OE OR Fe 13 Glossary AE EED fi ered ee VEER RE ARE SEDEER Rae Ed took 14 ees AO a id EE OT BE KERE OR A 16 Pas CAOS MADE oa Tr gee eE Er ERE z
9. ate It is recommended that the Gateway be mounted above the equipment on the upper portion of a wall or above a dropped ceiling Installation must be in accordance with all applicable local or national electrical codes OPTIMUM PHYSICAL LOCATION CONFIGURATION If multiple machines will be networked through the same Gateway a daisy chain connection must be utilized Refer to Installation on page 6 for details One connection cable is provided If more than one machine is to be connected additional cables can be purchased from Traulsen order kit number 893512 Traulsen suggests that the machines for any one Gateway be clustered within 15 feet of the Gateway regardless of the length of cable between the machines and the Gateway If the machines are more than 15 feet away from the Gateway a second Gateway should be used NOTE NAFEM Data Protocol Gateway can be implemented in an Ethernet wireless configuration such as the 802 11b wireless protocol Components to install in this manner are supplied by others Connections between the target equipment and the Gateway must be hard wired with an RS485 connection cable NAFEM Gateway Architecture Possible Configurations ETHERNET TO NETWORK INTERNET PROVIDED BY OTHERS NETWORK INTERNET Y ADAPTER CONNECTOR 3902 SEE NOTE A E ve GEE 893493 1 OR 893493 2 1 MAIN INSTALLATION KIT 893507 WITH CABLES FOR ONE MACHINE INCLUDES MACHI masm ware er osno CO EE osse Powe
10. d in and turned on Ensure that all machines are operating properly Ensure correct readings are displayed on the machines Ensure the data cables are properly connected to the machines and Gateway in a daisy chain fashion refer to page 6 Unplug the Gateway from ts power source for at least 60 seconds Plug the Gateway back in and wait up to 5 minutes for data transfer to resume Contact your IT professional for further assistance Values recorded for one Ensure that all machines providing false readings are machine are much higher or plugged in and turned on lower than what is expected Ensure correct readings are displayed on the machines Ensure the data cables are properly connected to the machines and Gateway in a daisy chain fashion refer to page 6 Unplug the Gateway from ts power source for at least 60 seconds Plug the Gateway back in and wait up to 5 minutes for data transfer to resume Contact your IT professional for further assistance The computer program launch Ensure that all machines to be monitored are plugged es but nothing else seems to in and turned on happen Ensure the Gateway is plugged in and connected to the network and the machines Ensure that the machines being monitored are operating normally Attempt to ping the Gateway refer to instructions page 13 Unplug the Gateway from ts power source for at least 60 seconds Plug the Gateway back in and wait up to 5 mi
11. eee BE n MEER Kieser ET ort ae TETEPI re MAZA TA PROTOCOL rr z ane P Premed ser Re Ms Era Model NDP1 TRAULSEN 2005 2 Installation Operation and Care of MODEL NDP1 NAFEM GATEWAY SAVE THESE INSTRUCTIONS GENERAL This manual is intended for the user who is already familiar with the NAFEM protocol and Ethernet connections For more information see NAFEM DATA PROTOCOL USER MANUAL located at http www nafem org resources tech DataProtocol cfm The NDP1 is a gateway device that when used with compatible Traulsen equipment can make the system NAFEM Data Protocol compliant The NDP1 performs protocol conversion from MODBus over RS485 to TCP IP over Ethernet You do not have to be a computer expert to understand what the gateway can do for you and how it is going to be applied The first thing you need to know is that a protocol is simply a set of rules that instructs or tells the computer how it can communicate It is like a language and the rules of grammar that we use to talk with each other Computers talk to each other over wires or through radio waves using protocols NAFEM has worked with its members to develop a common protocol for use in foodservice equipment Using this protocol information about the equipment can be shared with acomputer system Information that may be shared could include HACCP data asset information about the equipment maintenance information and so forth Networking is very common
12. ftware set up PRODUCT OVERVIEW The model NDP1 has three physical connectivity points to the physical world e The device s ElA 485 serial communication port The RJ45 Ethernet network communication port 10BaseT and The power supply jack The NAFEM Gateway is a protocol converter that connects Hobart Traulsen equipment to the NAFEM protocol using an Ethernet connection The requirements are set forth by NDP using digital signal connectivity This Gateway device performs these tasks and achieves NAFEM Data Protocol compliance with the use of six firmware components Poll Engine Alarm Module SNMP v1 Agent Web Server TFTP Client and a Device Protocol Driver In addition adatabase resides within the gateway that contains the NAFEM Objects This is where the information is exchanged between the NAFEM and MODBus elements The function of the gateway is to receive requests for reads and writes of NAFEM Objects These objects are the registers within the target equipment This request comes to the gateway in the format of the NAFEM protocol The gateway converts the request into the appropriate format and communicates with the target equipment If connected in a daisy chain configuration page 6 up to 8 pieces of equipment can be connected to one gateway The gateway can access up to 80 registers i e 80 different pieces of data divided between these targets The information returned to the gateway from the target equipment is conve
13. in most office environments The NAFEM Protocol uses networking concepts that are very typical If you use the Internet on your computer at home you are networking with computers all over the world You may also use computers in your workplace to share POS or inventory data When your network administrator connects the gateway to the network and adds an application software package on the computer you will be able to hook up from one to eight pieces of Hobart and Traulsen equipment that are NDP NAFEM Data Protocol compatible These pieces of equipment will send data to a specified computer on site or at a central location The data collected will be managed by an application software system installed on the target computer The kitchen equipment will run normally and have only a slight difference in the installation When adding the Gateway to your facility a network connection will start at either the target computer or the router to the Ethernet going to the Gateway From this point an RS485 cable like a telephone cable will extend from the Gateway to the first piece of equipment If more than one piece of equipment is to be connected a daisy chain configuration will connect one unit to the other A diagram of this configuration is shown on page 6 The remainder of this manual gives further details to installing the NAFEM Data Protocol system in your facility Your network administrator will be able to complete the installation hookup and so
14. ines The computer logging program does not launch A machine stopped working and none of the properly functioning machines are being logged A machine received service from a service technician and none of the machines are being properly logged The logging program stopped recording data for some but not all of the machines The logging software records unexpected values for several minutes after a system restart The logging software needs to be restarted multiple times a day SUGGESTED CORRECTIVE ACTION Ensure that all machines to be monitored are plugged in and turned on Ensure the Gateway is plugged in and connected to the network and the machines Ensure the data cables are properly connected to the monitored machines Try to ping the Gateway refer to instructions page 13 Restart the logging software this may require rebooting the computer Contact your IT professional for further assistance Ensure other programs launch properly i e notepad Reboot the computer Contact the software vendor for further assistance Ensure that all machines that are not being logged are plugged in and turned on Ensure that those machines still operate properly Ensure the data cables are properly connected to the machines and Gateway in a daisy chain fashion refer to page 6 Contact your IT professional for further assistance Ensure that all machines that are
15. not being logged are plugged in and turned on Ensure that those machines still operate properly Ensure the data cables are properly connected to the machines and Gateway in a daisy chain fashion refer to page 6 Contact your IT professional for further assistance Ensure that all machines that are not being logged are plugged in and turned on Ensure that those machines still operate properly Ensure the data cables are properly connected to the machines and Gateway in a daisy chain fashion refer to page 6 Contact your IT professional for further assistance This is by design of the Gateway logging software and method of communication The problem should correct itself within several minutes of being restarted Unplug the Gateway from its power source for at least 60 seconds Plug the Gateway back in and wait up to 5 minutes for data transfer to resume Contact the software vendor for further assistance EE PROBLEM SUGGESTED CORRECTIVE ACTION The Gateway itself needs its Ensure that the Gateway is away from other devices that power cycled multiple times could be sending out interfering signals such as microwave a day ovens radios networking equipment and other Gateways Contact your local Traulsen Service team to replace the potentially faulty Gateway Values recorded for one of the Ensure that all machines providing false readings are machines never changes plugge
16. nutes for data transfer to resume Contact your IT professional for further assistance AD PING INSTRUCTIONS Ping can be performed on most computer operating systems To perform a ping command from a 32 bit Windows machine i e Windows 95 98 Me NT 2000 or XP follow instructions below For operating systems other than Windows contact your network administrator 1 Click Start on the menu bar 2 Click Run 4 A Command Prompt or MS DOS box will appear 3 In the dialog that appears type the word command and then click OK 5 At the command line type ping where the 4 4 4 4 is the IP address of the Gateway that is having problems as in the first line of Fig 3 You may have to get this number from your network administrator manager or Help Desk 6 Press Enter If the command is successful meaning there is not a network communications problem between the Gateway and your PC then you will receive text similar to that of the second box in Fig 3 If the command is unsuccessful meaning there is a network communication or configuration error you will receive text similar to that of Fig 4 Successful ping E Command Prom pa Gin ping bt AA 1 Pinging L297 RAE uich 2 hyres ob datas 5 3 BT LAN TE OER ET ETTER ferum id ABTS dos 2 LT TIL iZ Heply From ig AENA E TIL 124 ETIES BE FUN N AR H TTL 124 Ping statistics far 127 0 6 1 Fackets Sent 4 Aeceived 4 Lost BH tk l
17. oss Approximate Pound tin times in milli seconds ininun fas ELLIS AN Aweeage Ars Cis Fig 3 Unsuccessful ping Bf Command Promp Gin pdng A E Finging L207 N N uich 2 TT RI data ET TA rima Heard Lineal Bequieet Lineal Heartie std Linea Ping statistics Jor 127 0 8 1 Fackets Gent 4 Aeceived B Lost 4 L Be lass Pe Fig 4 13 irj x GLOSSARY Address Alarm Module Auto IP Baseband Bit rate Broadcast Cat5 Cable Client Client Server Daisychain Topology Data Link Protocol Default Gateway Destination Address Device Protocol Driver DHCP Dynamic Host Configuration Protocol An identifiable location A location within memory A location of a node within a network A way of identifying a network sub network or node A portion of the firmware code that monitors data from the poll engine and alerts the user for example via E mail about conditions that fall outside of preset tolerances Microsoft s implementation of Automatic Private IP Addressing APIPA An Auto IP enabled device will automatically configure itself to an IP address in the range of 169 254 0 through 169 254 255 254 with a subnet mask of 255 255 0 0 if it cannot reach a DHCP server or if it does not have a fixed hard coded IP address A type of channel where data transmission is carried across only one communication channel Baseband supports one signal transmission at a time
18. r suey Sid os meme oer ar o REZO meme came 7 eer J n To 893902 Y ADAPTER CONNECTOR Oa 375 60232 00 NAFEM GATEWAY INSTRUCTION MANUAL 1 2 ADDITIONAL MACHINES MAY BE ADDED WITH CABLE KIT 893512 KIT INCLUDES CABLING FOR 1 ADDITIONAL MACHINE 1 ADAPTOR TO CONNECT TO THE REST OF THE SYSTEM CCO IC wee came Eer essare weme camee 7 reer 1 Y ADAPTER CONECTOR EE STRAIGHT vinep comer o 375 60232 00 NAFEM GATEWAY PROCEDURE MANUAL 1 E EEEE NOTE A SHOWN IS AN ALTERNATE CONF IGRUATION or THE JACK USED TO CONNECT MACHINE Ethernet Wiring Connect an RJ 45 Ethernet jack to a Hub or Switch with standard CAT5 cable The gateway is a 10BaseT device so a switch is the best solution for a multi speed network The device can be connected directly to a computer s Ethernet jack with a crossover cable provided by others Authentication and Registration Authentication and registration of the Gateway happens automatically once connections are made and may take up to 1 minute Communication to the network is accomplished via the DHCP Client to a system DHCP service if available The result of the DHCP method will define the device s Internet Protocol address SubNet mask and Default gateway The Microsoft AutolP scheme is employed to address possible networking environments where DHCP services are not available The Ethernet interface is designed to work without user intervention on most networks
19. rted into the NAFEM protocol and sent to the SNMP Manager the Web browser or the application software Network Services The NDP1 supports DHCP client staticIP and autolP for address assignment Normally you will not need to make any changes Intelligence is employed within the gateway to revert to backup IP assignment methods if the primary method is unavailable INSTALLATION PHYSICAL LOCATIONS There must be no more than 160 feet of RS485 cable within a configuration having one Gateway This means that one Gateway with up to 8 machines must have a total of no more than 160 feet of RS485 cable A configuration with two Gateways and up to 16 machines total must have no more than160 feet of RS485 cable in each Gateway cluster for a total of no more than 320 feet of RS485 cable for the two Gateway configuration A power adapter cord with six feet of lead is provided 120 volts 60 hertz 1 phase grounded outlet is required Power adapter cord must be plugged in prior to installation The Gateway and power cord must be located away from areas that will be sprayed with water or any other liquids and any devices that can emit electrical dsiturbances such as microwave ovens radios or other Gateways The Power Supply must be installed such that condensate cannot drip down the cord into the 120 volt outlet The Gateway and power cord must be located in an area where the ambient temperature is less than 100 F and where there is minimal risk of condens
20. the second Machine Cable tothe machine Referto NAFEM Gateway Architecture Possible Configurations on page 6 for instructions on how to connect and route the NAFEM cables between the Gateway and the machines RS485 and MODBus Settings All Traulsen machines have their bit rate set at 9600 bits per second Refer to each machine s Operators manual or Service Department for specific instructions on how to verify the bit rate setting All machines must have unique MODBus IDs Refer to each machine s Operators Manual or Service Department for specific instructions on how to verify the MODBus ID GATEWAY CONFIGURATION The Gateway may be configured via a web based interface To access this interface open a web browser on a PC connected to the same LAN as the Gateway Inthe address bar of the browser type in either the IP address or the address printed on the Gateway label and press Enter The configuration options are on the left panel Fig 1 All options can be configured individually Three important options to note are IP Address under Administration Network Time and Date under Clock Calendar Clock e Data Points to access under Gateway Serial Port Entry The first option set with the submit button will open a password dialogue box The default user name is new and the password is user For more information on how to change the user name and password or other configuation options refer to the Watlow Manual located at ht
21. tp www watlow com literature prodtechinfo files controllers nafem_b pdf 4 Watlow NDP Gateway Microsoft Internet Explorer E loj x File Edit View Favorites Tools Help je Back x a A S Search Se Favorites ES B aN J Zo Address E hitp ndp000147 E co Links gt y a i 2 gt NPD Gatewa Object Instance Go View EMonitor This page was loaded from NDPOOO147 on Fri Oct 15 14 37 39 2004 Configuration This Gateway provides a Ethernet to serial link for food service equipment Administration Asset Management Bulk Transfer HClock Calendar Inventory HMamtenance Notify Security HU tility Email Gateway Svstem Info El 21 Dane fica ean fan Encal intranet a Fig 1 TROUBLESHOOTING When the Poll Engine attempts to read from a remote device and an error occurs the Poll Engine will immediately retry to read from the remote device If all retries have failed then the Poll Engine will incrementthe protocol read message failure count by one and attempt the next poll attribute If all active attributes for a single device fail then the poll engine will disengage the device from the poll cycle When the Poll Engine attempts to write to a remote device and an error occurs the Poll Engine will immediately retry to write to the remote device If all retries have failed then the Poll Engine will increment the protocol write message failure count by one and
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