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Emerson 1420 Reference Manual

Wireless gateway
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Reference Manual
00809-0100-4420, Rev BA
August 2007
1420 Wireless Gateway
www.emersonprocess.com
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  • Page 1 Reference Manual 00809-0100-4420, Rev BA August 2007 1420 Wireless Gateway www.emersonprocess.com...
  • Page 3 For information on Rosemount nuclear-qualified products, contact your local Rosemount Sales Representative. PlantWeb is a registered trademark of one of the Emerson Process Management group of companies. Honeywell is a registered trademark of Honeywell Inc.

  • Page 5: Table Of Contents

    Introduction Guide to the 1420 Wireless Gateway ......1-2 Common Terms and Definitions ......1-2 Parts .

  • Page 6: Section 6 Troubleshooting

    Reference Manual 00809-0100-4420, Rev BA 1420 Wireless Gateway August 2007 Modbus Register Map ........4-5 OPC .
  • Page 7 Using the Wireless Interface in AMS Device Manager ... . C-2 Intelligent Device Using AMS Device Manager’s Alert Monitor with the 1420 ..C-3 Manager with the 1420...
  • Page 8 Reference Manual 00809-0100-4420, Rev BA 1420 Wireless Gateway August 2007...

  • Page 9: Basic Functionality And General Considerations

    System Requirements ......page 1-1 Guide to the 1420 Wireless Gateway ....page 1-2 Guide to the 1420 Wireless Gateway Manual .

  • Page 10: Guide To The 1420 Wireless Gateway

    1420 Wireless Gateway. Upper Cover The region of the 1420 Wireless Gateway behind the upper cover houses the gateway’s electronics, including the processor and the RS485 communication board. This area should not need to be opened at any time during installation...

  • Page 11: Guide To The 1420 Wireless Gateway Manual

    1420 Wireless Gateway August 2007 Lower Cover The lower cover of the 1420 Wireless Gateway houses the junction box. The junction box houses the terminal block, which has connections for the power supply, Modbus output, Ethernet output, redundant Ethernet output and a Power Over Ethernet (POE) connection.
  • Page 12 August 2007 Section 3: Mounting This chapter will describe how to properly mount the 1420 Wireless Gateway. It will provide information for installing the gateway indoors versus outdoors, on a pipe or a bracket, and information about connecting an antenna.

  • Page 13: Commissioning

    1420 Wireless Gateway is finished. If using a PC/laptop attached to another network, shut down the PC/laptop and remove it from the network before proceeding to set up the 1420 Wireless Gateway local connection. PC/Laptop...

  • Page 14: Configure From The Cd

    Click on the Direct button to establish a direct connection to the 1420. When you are ready to remove the PC from the 1420 first open the Network Assistant and select Normal to return the settings of the PC/laptop to their original values.
  • Page 15 Set the Subnet Mask to 255.255.255.0 f. Select OK for each of the settings windows that have opened. Using the supplied crossover Ethernet cable, attach your PC/laptop to the 1420’s P1 Ethernet Receptacle (far right Ethernet receptacle). PC/Laptop P1 Ethernet...
  • Page 16 Reference Manual 00809-0100-4420, Rev BA 1420 Wireless Gateway August 2007 Uncheck proxies (Tools>Internet Options>Connections>LAN Settings) Access the 1420’s default web page at https://192.168.1.10 a. Log on as User: admin b. Password: default...
  • Page 17 1420 Wireless Gateway August 2007 c. Click Yes to proceed through the Security Alert To prevent future security warnings, navigate to Setup>Security>Certificates, then click the Import 1420 certificate into web browser button. The 1420 Home Page will appear as shown below.

  • Page 18: Configuration

    Use caution when changing the administrator password. If the administrator password is lost, you will not be able to set up the 1420. The 1420 is shipped with the following default passwords: To configure the basic security of the 1420 Wireless Gateway, perform the following steps.

  • Page 19: Time Configuration

    Address If you will be attaching the 1420 Wireless Gateway to an internal Intranet, you may select to have the device obtain an IP address via DHCP or be statically assigned an IP address (Figure 2-1). Contact your network administrator if you are not sure which selection is appropriate.
  • Page 20 Reference Manual 00809-0100-4420, Rev BA 1420 Wireless Gateway August 2007 Determine 1420 Ethernet Port for connecting to Ethernet Network NOTE If using a wired connection, use Port 1 (P1) IT/Process Control Network Administrator or Technician can provide the following: a. 1420 fixed IP Address or DHCP Host Name b.

  • Page 21: Redundant Ethernet Configuration

    Navigate to Setup>Security>Protocol Click to enable or disable security in the various protocols The ports listed are the 1420 defaults. They may be changed to suit the specific installation requirements. Click Submit and proceed with 1420 Restart when prompted...
  • Page 22 00809-0100-4420, Rev BA 1420 Wireless Gateway August 2007 If the 1420 Wireless Gateway has been ordered with a redundant network interface, the network setup page (Setup>Internet Protocol>Address) will display a secondary interface as shown below. The second network interface allows the 1420 to be accessed with two separate network addresses.

  • Page 23: Serial Connection Configuration

    When configuration is completed, disconnect the PC/laptop from the 1420 and return the PC/laptop to its previous network settings. RETURN PC/LAPTOP TO When initial configuration of the 1420 Wireless Gateway is complete, you may disconnect the PC/Laptop from the Gateway and return it to its original ORIGINAL SETTINGS network settings.
  • Page 24 Reference Manual 00809-0100-4420, Rev BA 1420 Wireless Gateway August 2007 2-12...

  • Page 25: Overview

    Connecting the Gateway ......page 3-4 OVERVIEW This chapter will describe how to properly mount the 1420 Wireless Gateway. Safety Messages Instructions and procedures in this section may require special precautions to ensure the safety of the personnel performing the operations.

  • Page 26: Mounting Considerations

    00809-0100-4420, Rev BA 1420 Wireless Gateway August 2007 The 1420 Wireless Gateway is capable of handling networks of up to 100 transmitters. The closest transmitters should be at a maximum of 100 feet away from the 1420. The gateway can be mounted to a support bracket on a wall or to a pipe.

  • Page 27: Wiring The Module

    3-4. Grounding the Module If mounting the 1420 Wireless Gateway in the field, ground the module with a connection of 1 Ω or less leading from the external grounding lug to earth ground. If mounting the module in the control room, a cabinet ground is sufficient.

  • Page 28: Attaching A Remote Antenna

    This section will describe how to connect the 1420 to a Serial Modbus (RS485) system, an Ethernet system or a Wireless Ethernet system. Some GATEWAY applications may require multiple connection types - for example, to support both a DCS and a data historian. The 1420 is able to support such applications.

  • Page 29: Considerations For The Protocols

    Serial Modbus When installing a Serial Modbus connection, cabling will need to be run from the 1420 Wireless Gateway to the Modbus PLC or DCS. Be sure to consider the length and location of this cable. Key information required by the administrator will be the number of Modbus registers required for integration.

  • Page 30: Ethernet

    Typically, twisted shielded pair cable is used to wire the Serial connection. Standard practice is to ground the shield on the Serial Host side and leave the shield floating on the 1420 side. Be sure to insulate the 1420 shield to avoid grounding issues.

  • Page 31: Modbus

    POE Port before connecting. 24 V DC When installing the gateway, you may connect the 1420 Wireless Gateway to an existing Ethernet Hub, Switch or Router. This connection is used to communicate with the Information System, specifically a Remote Interface Machine, an OPC Proxy Machine (and an OPC Application Machine), or a Modbus TCP Application Machine.
  • Page 32 Figure 3-7 shows a typical two-wire multi-drop network such as used with the 1420 Wireless Gateway. The RS485 specifications indicate that the transmission line should be terminated at both ends of the network. However termination should only be used with high data rates above 115kbps and long cable runs so it should not be necessary with the transmission rates used by the 1420 Wireless Gateway.

  • Page 33: Data Integration

    Custom setup allows you to choose whether to install the following options: When this feature is selected, setup will install any additional software required to use this PC as a user interface for the 1420. This may 1420 User Interface include installing Microsoft Internet Explorer and Sun Microsystems Java Runtime.

  • Page 34: Security

    Security Setup. Security If the 1420 Wireless Gateway will be connected through a firewall, run the Security Setup application to allow the gateway to communicate with the Information System. The application requires the IP address of the 1420 Wireless Gateway and the firewall port through which the gateway will communicate with the network.
  • Page 35 Reference Manual 00809-0100-4420, Rev BA 1420 Wireless Gateway August 2007 Figure 4-1. Explorer Status...

  • Page 36: Map Application Data On The Gateway

    (standard or swapped) floating point number. One common difference in Modbus Masters is the representation of a floating point number. The default used by the 1420 is a Standard Floating Point but this configuration page also allows you to use Swapped Floating Point which reverses the order in which the data in the floating point registers is sent.

  • Page 37: Modbus Register Map

    Reference Manual 00809-0100-4420, Rev BA 1420 Wireless Gateway August 2007 Figure 4-2. Modbus Communication Modbus Register Map The Modbus Register Map page is located at Setup>Modbus>Mapping (Figure 4-8). On this page, Modbus Registers can be mapped to the measurement points. Please note that the registers in Table 4-3 are predefined.

  • Page 38: Opc

    Refer to your Information System’s documentation for specific instructions regarding mapping application data using the TCP/IP protocol. the Information System WIRELESS ETHERNET The 1420 Wireless Gateway integrates data to the information system via a wired Ethernet connection. Begin by installing the software on the Information System. Software Installation To prepare the Information System to communicate with the 1420 Wireless Gateway, insert the Setup Assistant &...

  • Page 39: Security

    Custom setup allows you to choose whether to install the following options: When this feature is selected, setup will install any additional software required to use this PC as a user interface for the 1420. This may 1420 User Interface include installing Microsoft Internet Explorer and Sun Microsystems Java Runtime.

  • Page 40: Map Application Data On The Gateway

    Reference Manual 00809-0100-4420, Rev BA 1420 Wireless Gateway August 2007 The Diagnostics>Network>Overview pages display the following information about the network. Data Type Description Wireless Device Count Total count of wireless devices, regardless of state Live Devices that are connected and reporting data values...

  • Page 41: Communication

    (standard or swapped) floating point number. One common difference in Modbus Masters is the representation of a floating point number. The default used by the 1420 is a Standard Floating Point but this configuration page also allows you to use Swapped Floating Point which reverses the order in which the data in the floating point registers is sent.

  • Page 42: Modbus Register Map

    Reference Manual 00809-0100-4420, Rev BA 1420 Wireless Gateway August 2007 Modbus Register Map The Modbus Register Map page is located at Setup>Modbus>Mapping (Figure 4-8). On this page, Modbus Registers can be mapped to the measurement points. Please note that the registers in Table 4-3 are predefined.

  • Page 43: Map Application Data On The Information System

    The 1420 Wireless Gateway supports Modbus RTU over the RS485 serial port. Begin by adding the wireless devices. This is done by powering the 1420 Wireless Gateway first, then powering the wireless measurement devices in order of proximity beginning with the devices closest to the gateway. If the Network ID and Join Keys are properly entered, the gateway will automatically detect and organize the devices in the network.

  • Page 44: Communication

    (standard or swapped) floating point number. One common difference in Modbus Masters is the representation of a floating point number. The default used by the 1420 is a Standard Floating Point but this configuration page also allows you to use Swapped Floating Point which reverses the order in which the data in the floating point registers is sent.

  • Page 45: Modbus Register Map

    Reference Manual 00809-0100-4420, Rev BA 1420 Wireless Gateway August 2007 Modbus Register Map The Modbus Register Map page is located at Setup>Modbus>Mapping (Figure 4-8). On this page, Modbus Registers can be mapped to the measurement points. Please note that the registers in Table 4-3 are predefined.
  • Page 46 Reference Manual 00809-0100-4420, Rev BA 1420 Wireless Gateway August 2007 4-14...

  • Page 47: Overview

    Reference Manual 00809-0100-4420, Rev BA 1420 Wireless Gateway August 2007 Section 5 Wireless Network Operation Overview ........page 5-1 Network Fortification .
  • Page 48 Reference Manual 00809-0100-4420, Rev BA 1420 Wireless Gateway August 2007 A good connection should exhibit the following characteristics: • Data Reliability > 99% • Data Latency < 3 times update rate • Battery Life > desired life span at fastest update rate •...
  • Page 49 Reference Manual 00809-0100-4420, Rev BA 1420 Wireless Gateway August 2007 Impenetrables A typical plant includes plenty of potential impenetrables, such as buildings, dense piping, concrete walls and long distances. The diagram below shows how impenetrables affect signal strength. There are three layers: floor, canopy, and emergent.

  • Page 50: Security Features

    The Network ID and Join key work together to ensure that your network communicates only with itself. These two codes must be identical in the gateway and devices in order for them to communicate. The 1420 Wireless Gateway is capable of generating a random join key, or you may create your...

  • Page 51: Encryption Key Rotation

    Reference Manual 00809-0100-4420, Rev BA 1420 Wireless Gateway August 2007 Encryption Key Rotation Another security option in the 1420 Wireless Gateway is Encryption Key Rotation. To enable and configure Encryption Key Rotation, click Setup>Mesh. TRENDS Setting Up Trends Setting up trends is a two part process. First the global Trend Settings need to be configured.
  • Page 52 Reference Manual 00809-0100-4420, Rev BA 1420 Wireless Gateway August 2007...

  • Page 53: Troubleshooting

    In addition, field device, and specific 1420 Wireless Gateway facts are available. To find the appropriate phone support contact, see the Rosemount Support web page at: http://www.rosemount.com/support/support.html...
  • Page 54 Address to ensure security. Open the Security Setup session to Address when connecting verify the 1420 secure address. Each laptop/PC with a secure to the 1420 through a connection to the 1420 will use a unique secure address to the secure connection 1420. See Section 4: Data Integration...
  • Page 55 OPC Server PC Verify that the 1420 OPC The 1420 has to use the 1420 secure IP Address created by a Server software is using Secure Setup session. See Section 4: Data Integration the correct 1420 secure...
  • Page 56 Host System specifications for correct settings and Ethernet on page 4-1. Verify the 1420 has the The 1420 will need to be assigned a Slave Address that is unique correct Serial Slave from all other serial devices on the serial input. See serial...

  • Page 57: Glossary

    Reference Manual 00809-0100-4420, Rev BA 1420 Wireless Gateway August 2007 Glossary The following terms and definitions are intended to define how the terms are used in this document. They may vary slightly from their common usage outside this document. Term...
  • Page 58 Primary Device A device in the closest layer, connected directly to the gateway (“one hop”) Private Network/LAN A local connection between a 1420 Wireless Gateway and a PC/Laptop. This network is used for commissioning and configuration of the gateway. Register(s)

  • Page 59: Specifications

    Ordering Information ......page A-4 SPECIFICATIONS Functional Power Input Options Specifications 24 V dc 500 milliamps required to power the 1420 Wireless Gateway. Environmental Operating Temperature Range: -40 to 60°C (-40 to 158°F) Operating Humidity Range: 0-95% relative humidity (non-condensing)

  • Page 60: Communication Specifications

    1420 Wireless Gateway. NOTE It is recommended that external power conditioners be used in any critical applications. This will allow the 1420 to be removed for maintenance and allow the fieldbus segments to continue functioning should the 1420 be unavailable.

  • Page 61: Dimensional Drawings

    Reference Manual 00809-0100-4420, Rev BA 1420 Wireless Gateway August 2007 DIMENSIONAL DRAWINGS Figure A-1. 1420 Wireless Gateway 900 mHZ ANTENNA 2.4 GHZ ANTENNA 6.925 (176) 9.02 (229) 2.78 3.06 2.99 3.51 (70.61) (77) (76) (89) 12.03 (305) 11.15 (283) Lower Cover...

  • Page 62: Ordering Information

    FM Division 2, Dust Ignition-Proof CSA Division 2, Dust Ignition-Proof ATEX Type n IECEx Type n IECEx Dust Ignition-proof ATEX dust Ignition-proof Adapters CM 20 Conduit Adapter PG 13.5 Conduit Adapter Typical Model Number: 1420 A 1 A2 1 N5...
  • Page 63 Reference Manual 00809-0100-4420, Rev BA 1420 Wireless Gateway August 2007 1420 Wireless Gateway Configuration Data Sheet Sales Order No. ______________________ Unit No. _____________________________ Line No. ____________________________ For Factory Use Only Configuration Information Customer: _____________________________________________ P.O. No.:_______________________________________________ Model No.: _____________________________________________ Line Item: ______________________________________________...
  • Page 64 Reference Manual 00809-0100-4420, Rev BA 1420 Wireless Gateway August 2007...

  • Page 65: Approved Manufacturing Locations

    Radio and Telecommunications Terminal Equipment Directive (R&TTE) (1999/S/EC) Emerson Process Management complies with the R&TTE Directive. FM Ordinary Locations The 1420 Wireless Gateway has been evaluated and approved by FM for ordinary locations. Approval CE EMC Marking Compliance with European Union EMC...

  • Page 66: European Certification

    Reference Manual 00809-0100-4420, Rev BA 1420 Wireless Gateway August 2007 Canadian Standards Association (CSA) N6 CSA Division 2 & Dust Ignitionproof Certificate Number: See Certificate Suitable for Class I, Division 2, Groups A,B,C,D; Dust Ignitionproof for Class II, Groups E,F, and G;...
  • Page 67 Reference Manual 00809-0100-4420, Rev BA 1420 Wireless Gateway August 2007 Radio Power Label - see Figure 3 - indicates output power configuration of the radio. Devices with this Country label - used only for countries with label are configured for output power less than 10 restrictions as listed mW e.i.r.p.
  • Page 68 Reference Manual 00809-0100-4420, Rev BA 1420 Wireless Gateway August 2007...

  • Page 69: Using Ams™ Suite

    When used in conjunction with the 1420 Wireless Gateway, Intelligent Device Manager provides a powerful tool for complete management of a plant’s valuable instrument assets. Besides providing a user-friendly interface for configuring, diagnosing, and calibrating a plant’s wireless HART devices,...

  • Page 70: Connecting The 1420 Wireless Gateway To Ams Device Manager

    1420 Wireless Gateway August 2007 CONNECTING THE 1420 The 1420 Wireless Gateway is connected to the AMS Device Manager PC through an Ethernet card. AMS Device Manager supports up to 16 1420’s in WIRELESS GATEWAY one wireless network. TO AMS DEVICE...

  • Page 71: Using Ams Device Manager's Alert Monitor With The 1420

    These device alerts are also captured and stored in the Audit Trail. AMS Alert Monitor displays alerts as they happen In order for device alerts to be reported to the Alert Monitor from the 1420, some setup is required. The following steps must be performed for a device to...
  • Page 72 Reference Manual 00809-0100-4420, Rev BA 1420 Wireless Gateway August 2007...

  • Page 73: Modbus Configuration In Honeywell® Tdc Apm/Hpm

    Refer to the Honeywell Manual OP01-501 APM/HPM Serial Interface Options for information on Modbus Configuration. The 1420 Wireless Gateway can address registers up to 65535. TDC requires that you use specific register ranges to read floating point numbers. The Honeywell manual contains the following information: “Floating point format data for the address range 20001 to 29999 is...
  • Page 74 Reference Manual 00809-0100-4420, Rev BA 1420 Wireless Gateway August 2007...

  • Page 75: Integer Scaling

    2712 to represent 2711.97 grams per minute, or 1 to indicate a density of 1.2534 grams per cubic centimeter. Integer scaling causes the 1420 to return integers, accurate to one part in 65536, representing the measured value of the process variable, such as 50000 to represent a mass flow rate of 50 grams per second.

  • Page 76: Step 1: Determine Maximum Integer

    1000, the overflow integer is 1001. If the default maximum integer is used (65534), the default overflow integer is 65535. The 1420 returns the overflow integer if the measured value of a process variable derives an integer higher than the maximum integer. The transmitter also returns the overflow integer if any of the following alarm conditions exists: •...

  • Page 77: Using Integer Scaling To Define Range Limits

    Reference Manual 00809-0100-4420, Rev BA 1420 Wireless Gateway August 2007 Intercept = Offset - 32768 • The maximum negative intercept is -32768, where the offset = 0. • The intercept is 0, where the offset = 32768 • The maximum positive intercept is 32767, where the offset = 65535 So, although you write the offset as an integer from 0 to 65535, the process variable can have a value less than, equal to, or greater than 0.
  • Page 78 August 2007 Example 1 The 1420 FIM is connected to a Honeywell TDC3000 control system using a PLC Gateway. The control system engineer sets up an analog input point to bring in volume flow, which enables use of flow limit alarms in the control system.
  • Page 79 Reference Manual 00809-0100-4420, Rev BA 1420 Wireless Gateway August 2007 Offset: × Gain 32768 32768 22768 Method 2 Choose a maximum integer equal to or less than 65534, then using the linear equation presented to solve for A (the scale factor) and B (the offset), as shown in Example 3.
  • Page 80 Reference Manual 00809-0100-4420, Rev BA 1420 Wireless Gateway August 2007 NOTES:...
  • Page 81 Reference Manual 00809-0100-4420, Rev BA 1420 Wireless Gateway August 2007...
  • Page 82 Reference Manual 00809-0100-4420, Rev BA 1420 Wireless Gateway August 2007...
  • Page 84 00809-0100-4420, Rev BA August 2007 The Emerson logo is a trade mark and service mark of Emerson Electric Co. Rosemount and the Rosemount logotype are registered trademarks of Rosemount, Inc. All other marks are the property of their respective owners.

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