VEGA WHA-GW User Manual
PROCESS AUTOMATION
MANUAL
WHA-GW-*
WIRELESSHART GATEWAY
®
WHA-GW-*
With regard to the supply of products, the current issue of the following document is ap-
plicable: The General Terms of Delivery for Products and Services of the Electrical In-
dustry, published by the Central Association of the Electrical Industry (Zentralverband
Elektrotechnik und Elektroindustrie (ZVEI) e.V.) in its most recent version as well as the
supplementary clause: "Expanded reservation of proprietorship"
WHA-GW-*
1 Safety................................................................................................. 6
1.1 Validity....................................................................................................................................6
1.2 Symbols used ........................................................................................................................6
1.3 Target Group/Staff.................................................................................................................7
1.4 Reference to further documentation....................................................................................7
1.5 Declaration of Conformity.....................................................................................................7
1.6 Marking ...................................................................................................................................7
1.7 Intended Use ..........................................................................................................................8
1.8 Mounting and Installation .....................................................................................................8
1.9 Operation, Maintenance, Repair...........................................................................................9
1.10 Delivery, Transport, Disposal................................................................................................9
2 Product Specifications .................................................................. 10
2.1 Introduction..........................................................................................................................10
2.2 Functional Overview............................................................................................................11
2.2.1 Network Management ...........................................................................................................12
2.2.2 Security Management............................................................................................................13
2.2.3 Virtual Remote I/O system..................................................................................................... 13
2.2.4 Gateway Cache Management ...............................................................................................15
2.3 Scope of Delivery.................................................................................................................16
2.4 Design...................................................................................................................................16
3 Installation ...................................................................................... 18
3.1 Mounting Considerations ...................................................................................................18
3.1.1 Positioning the Gateway........................................................................................................18
3.1.2 Antenna Characteristics......................................................................................................... 18
3.1.3 Examples for Good and Poor Positioning..............................................................................20
3.2 Mounting the Gateway.........................................................................................................22
3.3 Connecting to Ethernet.......................................................................................................23
3.4 Connecting to RS-485 .........................................................................................................28
3.5 Connecting the Antenna .....................................................................................................30
3.6 Connecting to Power Supply and Grounding ...................................................................31
4 Commissioning .............................................................................. 33
4.1 Important Steps to Getting Started ....................................................................................33
4.2 DTM Software.......................................................................................................................33
4.2.1 Downloading the required software .......................................................................................33
4.2.2 Installing the Required Software............................................................................................34
4.2.3 Updating the DTM catalog .....................................................................................................35
4.3 Connecting via RS485.........................................................................................................36
4.4 Connecting via Ethernet .....................................................................................................37
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4.5 Creating a new PACTware Project ....................................................................................38
4.5.1 Creating a new project...........................................................................................................38
4.5.2 Adding the Communication DTM...........................................................................................38
4.5.3 Adding Device DTM...............................................................................................................43
5 Configuration ..................................................................................45
5.1 Configuration via DTM or Web Interface ...........................................................................45
5.2 Online and offline parameterization (DTM) .......................................................................46
5.3 Identification Parameters....................................................................................................48
5.4 Wireless Communication Parameters................................................................................49
5.4.1 Setup .....................................................................................................................................49
5.4.2 Instrument List .......................................................................................................................51
5.4.3 Burst Lists ..............................................................................................................................54
5.5 Wired Communication Parameters....................................................................................56
5.5.1 Interfaces > Serial..................................................................................................................56
5.5.2 Interfaces > Ethernet .............................................................................................................57
5.5.3 Protocols > HART ..................................................................................................................59
5.5.4 Protocols > Modbus...............................................................................................................60
5.6 Network Explorer Tables.....................................................................................................62
6 Operation .........................................................................................64
6.1 Controls and Indicators ......................................................................................................64
6.1.1 LEDs ......................................................................................................................................65
6.1.2 Buttons and DIP switches......................................................................................................66
6.2 Diagnosis..............................................................................................................................69
6.2.1 Identification...........................................................................................................................69
6.2.2 Wireless Communication .......................................................................................................70
6.2.3 Wired Communication ...........................................................................................................71
6.3 Additional DTM Functions ..................................................................................................74
6.3.1 Reset .....................................................................................................................................75
6.3.2 Self Test.................................................................................................................................75
6.3.3 Set DTM address...................................................................................................................76
6.3.4 Set device address ................................................................................................................77
6.3.5 List Editor...............................................................................................................................78
6.3.6 About .....................................................................................................................................79
6.3.7 Change Password .................................................................................................................79
6.3.8 Firmware Upgrade .................................................................................................................80
6.4 Network Enhancement ........................................................................................................81
6.5 Modbus Mapping .................................................................................................................83
6.5.1 Overview................................................................................................................................83
6.5.2 Modbus Mapping Description ................................................................................................84
7 Maintenance and repair..................................................................87
7.1 WHA-GW* .............................................................................................................................87
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8 Troubleshooting ............................................................................. 88
8.1 Faults indicated by Gateway LEDs ....................................................................................88
8.2 Wired Communication Faults.............................................................................................88
8.3 Wireless Communication Faults.........................................................................................89
9 Technical specifications................................................................ 90
9.1 WHA-GW...............................................................................................................................90
9.2 Telecommunication Compliance........................................................................................92
10 Appendix A ..................................................................................... 93
10.1 Supported Commands ........................................................................................................93
10.1.1 Universal Commands ............................................................................................................93
10.1.2 Common Practice Commands ...............................................................................................94
10.1.3 Wireless Commands..............................................................................................................94
10.1.4 Device Commands ................................................................................................................95
10.2 Software License .................................................................................................................95
5
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Safety
1Safety
1.1 Validity
The chapter “Safety” is valid as instruction manual.
Specific process and instructions in this document require special precautions to guarantee
the safety of personnel.
1.2 Symbols used
This document contains information that you must read for your own personal safety and to
avoid property damage. The warning signs are displayed in descending order depending
on the hazard category, as follows:
Safety-relevant symbols
Danger!
This symbol indicates a warning about a possible danger.
In case of ignoring the consequences may range from personal injury to death.
Warning!
This symbol indicates a warning about a possible fault or danger.
In case of ignoring the consequences may cause personal injury or heaviest property
damage.
Caution!
This symbol warns of a possible fault.
In case of ignoring the devices and any connected facilities or systems may be interrupted
or fail completely.
Informative symbols
Note!
This symbol brings important information to your attention.
Action
This symbol marks an acting paragraph.
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Safety
1.3 Target Group/Staff
The plant owner is responsible for its planning, installation, commissioning, operation,
maintenance and disassembly.
Mounting, commissioning, operation, maintenance and dismounting of any devices may
only be carried out by trained, qualified personnel. The instruction manual must be read
and understood.
1.4 Reference to further documentation
Laws, standards, or directives applicable to the intended use must be observed. In relation
to hazardous areas, Directive 1999/92/EC must be observed.
The corresponding data sheets, declarations of conformity, EC Type-examination
certificates, certificates and Control Drawings if applicable (see data sheet) are an integral
part of this document. You can find this information under www.pepperl-fuchs.com.
Due to constant revisions, documentation is subject to permanent change. Please refer
only to the most up-to-date version, which can be found under www.pepperl-fuchs.com.
1.5 Declaration of Conformity
All products were developed and manufactured under observance of the applicable
European standards and guidelines.
Note!
A Declaration of Conformity can be requested from the manufacturer.
The product manufacturer, Pepperl+Fuchs GmbH, 68307 Mannheim, has a certified quality
assurance system that conforms to ISO 9001.
ISO9001
1. 6 M a r k i n g
WirelessHART® Gateway
Pepperl+Fuchs GmbH
Lilienthalstraße 200
68307 Mannheim, Germany
WHA-GW-*
PF 09 CERT 1469 X
II 3 G Ex nA II T4
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Safety
1.7 Intended Use
The devices are only approved for appropriate and intended use. Ignoring these
instructions will void any warranty and absolve the manufacturer from any liability.
The approved usage of the connected device(s) and gateway can be taken from the
corresponding parts of their instruction manual.
The device is an intelligent WirelessHART device designed for the transmission of
measured values from connected C&I or HART devices.
The device must only be operated in the ambient temperature range and at the relative
humidity (non-condensing) specified.
Protection of the operating personnel and the overall system is not ensured if the product is
not being used according to its intended purpose.
1.8 Mounting and Installation
Prior to mounting, installation, and commissioning of the device you should make yourself
familiar with the device and carefully read the instruction manual.
The device must not be installed at locations where corrosive vapors may be present.
The devices are designed for use in pollution degree 2 and overvoltage category II as per
IEC/EN 60664-1.
If used in areas with higher pollution degree, the devices need to be protected accordingly.
Pay attention to avoid electrostatic discharges while operating the installed device. Avoid
electrostatic charge.
The usage of 2400 MHz equipment is bound to local restrictions. Ensure that restrictions
allow usage of this product before commissioning.
Country Guideline
Bulgaria General authorization required for outdoor use and public service.
Italy If used outside of own premises, general authorization is required.
Norway May be restricted in the geographical area within a radius of 20 km
from the center of Ny-Alesund.
Rumania Use on a secondary basis. Individual license required.
Latvia The outdoor usage of the 2.4 GHz band requires an authorization
from the Electronic Communications Office.
Only use antennas that are specified in the data sheet.
If devices have already been operated in general electrical systems, they may
subsequently no longer be installed in electrical systems used in combination with
hazardous areas.
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Safety
The installation instructions in accordance with IEC/EN 60079-14 must be observed.
Connection or disconnection of energized non-intrinsically-safe circuits is only permitted in
the absence of a hazardous atmosphere.
The device must be disconnected from the power supply prior to installation and
maintenance. The power supply may be activated only after all the circuits required for
operation have been fully assembled and connected.
To ensure the IP degree of protection:
• all seals must be undamaged and correctly fitted
• all screws of the housing / housing cover must be tightened with the appropriate torque
• only cable of the appropriate size must be used in the cable glands
• all cable glands must be tightened with the appropriate torque
• all empty cable glands must be sealed with sealing plugs
The device must be mounted with at least a degree of protection of IP 54 according to
IEC/EN 60529.
1.9 Operation, Maintenance, Repair
Use switches only in the absence of a hazardous atmosphere.
When the device is in operation, a distance of at least 20 cm must be maintained at all
times between the device antenna and the body of the user or any other person within the
vicinity of the measuring point irrespective of application or use.
The devices must not be repaired, changed or manipulated. If there is a defect, the product
must always be replaced with an original device.
1.10 Delivery, Transport, Disposal
Check the packaging and contents for damage.
Check if you have received every item and if the items received are the ones you ordered.
Keep the original packaging. Always store and transport the device in the original
packaging.
Always store the device in a clean and dry environment. The permitted storage temperature
(see data sheet) must be considered.
Disposing of devices, packaging material, and possibly contained batteries must be in
compliance with the applicable laws and guidelines of the respective country.
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1
2
3
4
5
Product Specifications
2 Product Specifications
2.1 Introduction
The HART® communication protocol (Highway Addressable Remote Transducer) is used
by many 4 ... 20 mA transmitters to enable digital communication for diagnosis and
maintenance purposes. Many device parameters, but also measurement values, can be
transmitted digitally to and from the device. Until now, HART
using the wired 4 ... 20 mA loop as physical layer.
®
WirelessHART
employable worldwide, WirelessHART
802.15.4 wireless network) as physical layer. All WirelessHART devices form a mesh
network in which every device is not just a measurement point, but also a repeater. This
results in a bigger range of the whole network as well as an increased reliability through
redundant communication paths.
technology now allows for the wireless transmission of HART® data. To be
®
technology has mostly been
®
technology utilizes the 2.4GHz Band (IEEE
Figure 2.1WirelessHART mesh network
1 WirelessHART field device
2 WirelessHART adapter
3 WirelessHART Gateway
4 Fieldbus/Ethernet
5 Host applications
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Product Specifications
The WirelessHART network is built up, organized and maintained by the WirelessHART
Gateway and is therefore self-organizing and self-healing. The Gateway also takes care for
connection to different host systems through different industrial protocol bus interfaces.
The WirelessHART Gateway supplies the WirelessHART field devices with the necessary
information for seamless network operation.
2.2 Functional Overview
The WirelessHART Gateway enables WirelessHART devices to communicate with each
other and manages network security and connectivity. The Gateway device converts
wireless device data to a format that is compatible with other systems.
Key features
• Gateway, Network Manager, and Network Access Point capabilities according to the
WirelessHART (HART 7.1) specification
• Interfaces: RS485 and Ethernet with support of HART communication protocol and
Modbus protocol on both interfaces
• Configuration, parameterization via FDT/DTM, EDDL or Web-Interface
• Fully galvanically isolated external interfaces; open-enclosure access to switches and
LEDs
• Intrinsically safe antenna port (planned)
• Local or Remote antenna options
• Redundant supply option
• Integrated web server for remote Gateway configuration and device variables
monitoring
Functionality
• Measurement
•Protocols:
• HART over RS-485, HART over UDP
• MODBUS RTU/TCP
• HTTP (Web Server) for configuration of the Gateway
• OPC Access via Host-resident HART OPC Server Software
• HOST integration: DTM, EDDL
The WirelessHART Gateway fulfills 4 different tasks in a WirelessHART network, which are
described shortly in the following.
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4
1
5
2
3
Product Specifications
2.2.1 Network Management
The WirelessHART Gateway contains a network manager. The network manager takes
care of the wireless communication between the WirelessHART field devices. The network
manager takes care of the creation and maintenance of the wireless mesh network to
ensure proper communication between the WirelessHART field devices.
Figure 2.2Network management
1 Step 1: Advertising
2 Step 2: Joining
3 Step 3: Scheduling
4 WirelessHART Gateway
5 WirelessHART field device
First, the network manager sends advertising messages to announce the network’s
existence. When a WirelessHART field device receives such an advertising message, it
tries to join the network. If the WirelessHART field device can identify itself with the same
network ID and join key as stored in the WirelessHART Gateway, the field device is allowed
to join the network. Otherwise, the field device will be rejected.
The network manager can also instruct already joined devices to advertise on its behalf.
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Product Specifications
In the next step, the network manager sends scheduling information to the field device. The
field device is told how to participate in the network and receives various information from
the WirelessHART Gateway:
• Number and identity of neighboring WirelessHART field devices,
• When to send messages and which channels to use,
• When to repeat messages for other WirelessHART field devices,
• The optimal communication path for messages as well as alternative communication
paths in case of failure.
During this process, the field device may also apply to send messages in certain intervals
and ask the network manager for the appropriate resources. The network manager then
takes care that these resources are available. For example, the network manager informs
other WirelessHART field devices when to repeat messages.
2.2.2 Security Management
The security manager is part of the WirelessHART Gateway. To make communication safe,
all messages are encrypted with industry-standard AES-128 block ciphers with symmetric
keys. Therefore, messages are unreadable for external listeners.
The security manager distributes the encryption keys and changes them in certain
(random) intervals, as an option.
2.2.3 Virtual Remote I/O system
The WirelessHART Gateway make wireless communication accessible to HOST systems
capable of HART technology through the following principles.
Instrument List
WirelessHART devices and wired devices connected to a WirelessHART adapter are made
available to HOST systems via a virtual HART I/O system. This I/O system contains one or
multiple I/O cards. Each I/O card has up to 2 channels. To each channel, up to 6 wired field
devices may be connected in multi-drop mode. (see Figure 2.3 on page 14).
The P+F WirelessHART Gateway assigns a virtual I/O card to each WirelessHART device
and stores card and channel values in the Instrument List. The I/O cards are assigned to
the WirelessHART devices in chronological order (0 ... 249). New WirelessHART devices in
the network are assigned to the next available I/O card.
WirelessHART devices are always assigned to Channel 0 of an I/O card. All wired devices
connected to a WirelessHART adapter are always assigned to channel 1 of the same I/O
card as the adapter (multi-drop mode).
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Product Specifications
Figure 2.3Network structure and corresponding I/O structure
1 HOST application
2 WirelessHART Gateway
3 WirelessHART field device (joined first): I/O card 0, channel 0
4 WirelessHART adapter (joined second): I/O card 1, channel 0
5 Wired devices 1...3 connected to WirelessHART adapter: I/O card 1, channel 1
If a WirelessHART device loses communication to the Gateway, it keeps its position in the
Gateway's Instrument List and stays assigned to the respective I/O card. When
communication is established again, the device has the same channel/card values that it
had before.
The same principle applies to the field devices connected to the WirelessHART adapter:
After communication to the Gateway was lost, the field devices regain their previous
position in the Instrument List as soon as communication is established again.
Note!
The Instrument List is stored in a non-volatile memory. Card/channel number assignment
will remain the same after a Gateway power-up or software restart.
14
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Product Specifications
Long Tag Emulation
The WirelessHART communication protocol uses the long tag to address devices.
However, long tags are only supported by HART 6 devices and newer devices
(HART 6 = version 6 of the HART communication protocol; current version: HART 7). Older
devices, for example HART 5 devices, have to be addressed by the "Message" field. If a
HART 5 device is connected to the WirelessHART network using a WirelessHART adapter,
the WirelessHART Gateway emulates the long tag with the "Message" field.
2.2.4 Gateway Cache Management
The WirelessHART Gateway caches parameters and dynamic values of the wireless and
wired subdevices and makes them available to the HOST. Some commands are cached by
the Gateway automatically (upon read). Other commands, for example dynamic values, are
only cached if the respective field device publishes them (upon publishing). For more
information on publishing of device values prease refer to the Burst lists section (see
chapter 5.4.3).
The responses to the command requests listed in the following table are cached in the
Gateway. Commands in the same row have an identical response frame and share the
same cache memory. The write commands (17, 18, 22, 51) will never get an immediate
answer, but their response will be cached (caching upon write-confirmation).
Information cached by the Gateway
Cache Command Description
Static
configuration
commands,
cached upon
read or upon
write
confirmation
Dynamic value
commands,
cached upon
publishing only
0, 11, 21 Read unique identifier (associated with tag or long
tag)
12, (17) Read (Write) Message
13, (18) Read (Write) Short Tag, Descriptor, Date
20, (22) Read (Write) Long Tag
50, (51) Read (Write) Dynamic Variable Assignments
1 Read Primary Variable
2 Read Current and Percentage
3 Read All Variables
9 Read Device Variables and Status
33 Read Device Variables
93 Read Trend
48 Read Additional Device Status
Status Information Caching
The Gateway chaches the device status byte separately for each wireless or wired device.
The device status will be cached from any type of received message, no matter if from a
wired or wireless device, or if it is a "published" or "normal" response.
The extended device status byte is cached in a similar way, but is available only for
wireless devices.
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Product Specifications
2.3 Scope of Delivery
The scope of delivery of the WirelessHART Gateway includes:
•Device WHA-GW-*,
• Antenna W-ANT-2400-2DB-ROD,
• 3 sealing plugs for unused cable glands,
• Product documentation.
2.4 Design
The operating elements, connections and interfaces are accessible with open enclosure.
Controls and Indicators
Further information on the indications of the LEDs and the functions of the buttons and DIP
switches: see chapter 6.1.
16
Figure 2.4WHA-GW with open enclosure
1 LEDs
2 Button A
3 Button B
4 DIP switches
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Product Specifications
Connections and Interfaces
Figure 2.5Connections and Interfaces
1 Grounding terminal
2 RS-485 interfaces, duplicated terminal block for daisy-chain capability
3 Ethernet interface
4 Power supply connections (redundant)
5 Antenna
6 Antenna terminal
7 Cable glands
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Installation
3Installation
3.1 Mounting Considerations
3.1.1 Positioning the Gateway
Install the Gateway first, before installing other WirelessHART devices. This way you can
check for proper operation of new devices as they are installed. Nevertheless, consider the
location of future WirelessHART devices that will be routed through the Gateway to ensure
good connectivity.
Guidelines for Planning a WirelessHART Network
• A line-of-sight between communication partners always is desirable. If a line-of-sight is
not possible, the obstacles should not be massive and the partners should be more to
the edge of an obstacle to allow the wave to "bend" around it (diffraction effect).
• Consider moving objects that could affect the device's antenna range.
• Install wireless devices at least 1 m above the ground or the floor.
• Make sure that the device's antenna is aligned vertically for best results.
• Make sure that a minimum of 2 other WirelessHART devices are well within the antenna
range of the device (see chapter 9). For more information on the antenna
characteristics please refer to the following section.
• Do not position WirelessHART devices directly below or above each other. They would
be outside each other's antenna range.
• Install WirelessHART devices at least 1 m away from each other.
• Antennas must be at least 6 cm away from any wall or any metallic material running
parallel to it.
• Position the device as far away as possible from metal surfaces or walls containing
metal. There should be as little metal close to the device as possible.
• Do not position other 2.4 GHz devices like cordless phone bases or WLAN routers near
WirelessHART devices. Keep in mind other wireless networks using the same
frequency spectrum (WLAN, Bluetooth, etc.). Wireless technologies used in an
industrial environment must be able to coexist without disrupting each other. If multiple
networks operate in one facility, a frequency management should be applied as part of
administration.
If it is not possible to mount the device outdoors, connect a remote antenna to the antenna
terminal and mount the remote antenna outdoors. The antenna cable should not be longer
than 15 m.
3.1.2 Antenna Characteristics
The antenna is an omni-directional dipole antenna. If you point the antenna upwards, the
signal radiates horizontally with an angle of approx. 45 degrees above and below the
horizontal (donut shaped). Allmost no signal will be radiated directly above and below the
antenna. Consider this when planning a WirelessHART network. The height differences
between wireless devices in a network should not be too big.
This is only valid for an antenna placed outdoors with no metal surfaces near. The radiation
pattern changes significantly when metal surfaces are close to the antenna.
18
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Installation
The following diagrams show the antenna gain in two different planes.
0°
280°
270°
290°
300°
310°
320°
330°
340°
350°
2
-1
-4
-7
-10
-13
-16
-19
-22
-25
-28
-31
-34
-37
10°
20°
30°
40°
50°
60°
70°
80°
90°
260°
250°
240°
230°
220°
210°
200°
190°
Figure 3.1Antenna gain (side view, 2450 MHz, dBi)
350°
340°
330°
320°
310°
300°
290°
280°
270°
180°
0°
2
-1
-4
-7
-10
-13
-16
-19
-22
-25
-28
-31
-34
-37
170°
10°
100°
110
120°
130°
140°
150°
160°
20°
30°
40°
50°
60°
70°
80°
90°
260°
250°
240°
230°
220°
210°
200°
190°
180°
Figure 3.2Antenna gain (top view, 2450 MHz, dBi)
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170°
160°
140°
150°
100°
110
120°
130°
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x
y
Installation
3.1.3 Examples for Good and Poor Positioning
Figure 3.3Wave propagation, schematic representation (alpha = approx. 45°, may vary considerably)
1 Weaker signal above and below; almost no signal directly above and below
2 Stronger signal sideways
Figure 3.4Good positioning: Devices are within each others antenna range
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x
y
Installation
Figure 3.5Poor positioning: Devices are not within each others antenna range
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Installation
3.2 Mounting the Gateway
Danger!
Electrostatic discharge hazard
The device contains non-conductive plastic parts. Care must be taken when operating the
installed device because of possible electrostatic charges. Electrostatic charged surfaces
may cause an ignition spark.
Electrostatic charges must be avoided. For example, do not rub the device and never clean
plastic surfaces with a dry cloth. Always use a damp cloth instead.
Danger!
Check cable glands
The IP degree of protection can not be ensured if the cables and cable glands are not fitted
correctly.
To ensure the IP degree of protection
• all screws of the housing / housing cover must have been tightened with the appropriate
torque,
• only cables of the appropriate size must be used in the cable glands,
• all cable glands must be tightened with the appropriate torque,
• all seals must be undamaged and fitted correctly,
• all empty cable glands must be sealed with appropriate plugs.
The mounting location should be well accessible for mounting and electrical installation.
Make sure that there is enough space to open the housing cover and to access the
terminals, switches, and cable glands. Choose a mounting location that meets the
requirements of the climatic limits specified in the technical data.
The housing has a degree of protection of IP65 and is designed for wall mounting
(mounting accessories and tools not included).
Required tools
22
• 2 screws (M6)
• Drill
•Screwdriver
Depending on the mounting surface, you may need additional mounting material.
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2
1 1
2
Installation
Figure 3.6Mounting holes and housing screws
1 Mounting holes for M6 screws
2 Housing screws
Mounting the Gateway
1. Drill 2 holes into the mounting surface so that they match the holes of the housing.
2. Screw the device to the mounting surface using M6 screws.
3.3 Connecting to Ethernet
Danger!
Explosion hazard in Zone 2 when operating powered Gateway
If the Gateway is installed in Zone 2 and connected to power, there is an explosion hazard
when operating DIP switches, buttons or connecting/disconnecting cables.
The operation of DIP switches/buttons and the connection/disconnection of any cables in
Zone 2 is only permitted in the absence of a hazardous atmosphere or if the device is
disconnected from power!
The Gateway is equipped with a fully galvanic isolated 10 Base-T/100 Base-TX Ethernet
interface. You may connect the Gateway to an existing Ethernet hub, switch, router or
directly to a PC.
Open the housing cover to access the terminal blocks.
Note!
Keep in mind that an access point of the Ethernet network has to be available. The
maximum length of the cable running from the Gateway to the access point is 100 m,
depending on cable type and communication speed.
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Installation
Note!
Tension relief and bending radii
Ensure sufficient relief of tension on the cables during installation and note the minimum
bending radii of the cables.
Pin assignment of the Ethernet plug
You do not need an Ethernet plug to connect the Ethernet cable to the Gateway. However,
you need an Ethernet plug at the other end of the cable to connect the cable to an Ethernet
hub, switch, router or PC.
There are different standards for Ethernet plugs: T568A and T568B (see following
figure/table). The only difference between these standards is that certain wires are
connected to different pins of the plug. It is not important which standard the plug uses.
But, depending on the plug standard, there are two different ways of connecting the other
end of the Ethernet cable to the Gateway.
24
Figure 3.7Pin assignment RJ45 plug
Pin assignment of a T568A/T568B plug
Signal RJ45 Pin Wire color T568A Wire color T568B
TX+ 1 white/green white/orange
TX- 2 green orange
RX+ 3 white/orange white/green
4 blue blue
5 white/blue white/blue
RX- 6 orange green
7 white/brown white/brown
8 brown brown
Table 3.1Pin assignment of a T568A and T568B plug
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1
3
2
4
2
Installation
Crossover or straight through wiring
There are different types of Ethernet cables, depending on the application. In a straight
through cable, both cable ends have T568A plugs or both ends have T568B plugs. In a
crossover cable, one end has a T568A plug and the other end a T568B plug.
• Use straight through wiring if you connect the Gateway to a switch, hub or router (see
Figure 3.8 on page 25).
• Use crossover wiring if you connect the Gateway directly to another ethernet device
(e.g. a PC) without a switch, hub or router (see Figure 3.8 on page 25).
Note!
Latest network interface cards and hub/switch/router versions can be able to automatically
adjust to the cable version used, also if this is not the applicable one according to the
guidelines given in this manual.
Figure 3.8Straight Through or Crossover connection
1 Gateway connected to PC via hub/switch/router
2 Straight Through cable
3 Gateway connected directly to PC
4 Crossover cable
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Installation
Connecting to Ethernet Network
1. Unscrew the 4 screws of the housing cover (see Figure 3.6 on page 23).
2. Remove the housing cover.
3. Route the Ethernet cable through the cable gland in the middle of the Gateway housing.
The permissible cable diameter lies between 6 ... 10 mm.
4. Connect the Ethernet cable to the terminal block labelled "Ethernet" (see Figure 3.9 on
page 26) according to the following figure/tables.
5. Screw the housing cover to the housing again.
6. Tighten the cable gland with appropriate torque (see table "Installation torque cable
glands" on page 32).
The Gateway is now connected to the Ethernet network. The yellow Ethernet
communication status LED starts flashing when a correct HART or Modbus protocol
message is received (see chapter 6.1).
Figure 3.9Ethernet interface
Figure 3.10Gateway Ethernet wiring
1 Straight through connection with an T568A plug
or
Crossover connection with a T568B plug
26
2 Crossover connection with an T568A plug
or
Straight Through connection with a T568B plug
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Installation
Wiring with a T568A plug
Gateway wiring with a T568A plug
Gateway Terminal Crossover wiring Straight through wiring
T1 brown brown
white/brown white/brown
T2 blue blue
white/blue white/blue
RX- green orange
RX+ white/green white/orange
TX- orange green
TX+ white/orange white/green
SHD Cable shield Cable shield
Table 3.2Wiring with a T568A plug
Wiring with a T568B plug
Gateway wiring with a T568B plug
Gateway Terminal Crossover wiring Straight through wiring
T1 brown brown
white/brown white/brown
T2 blue blue
white/blue white/blue
RX- orange green
RX+ white/orange white/green
TX- green orange
TX+ white/green white/orange
SHD Cable shield Cable shield
Table 3.3Wiring with a T568B plug
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Installation
3.4 Connecting to RS-485
Danger!
Explosion hazard in Zone 2 when operating powered Gateway
If the Gateway is installed in Zone 2 and connected to power, there is an explosion hazard
when operating DIP switches, buttons or connecting/disconnecting cables.
The operation of DIP switches/buttons and the connection/disconnection of any cables in
Zone 2 is only permitted in the absence of a hazardous atmosphere or if the device is
disconnected from power!
The Gateway is equipped with a fully galvanic isolated RS-485 interface. The interface is
daisy-chain capable through its duplicated RS-485 terminal block.
A terminating resistor is integrated and may be switched on/off by using the corresponding
DIP switch inside the Gateway housing (see chapter 6.1) . It is also possible to switch on/off
the terminating resistor via software (see chapter 5.5.1).
If the RS-485 cable ends at the WirelessHART Gateway and is not routed to other devices
(no daisy-chain connection), activate the terminating resistor to ensure reliable RS-485
communication.
Note!
Keep in mind the location of the Modbus PLC or DCS. The maximum length of the cable
running from the Gateway to the PLC/DCS is 1200 m (at reduced communication speed).
Use shielded twisted pair (STP) cables only.
Figure 3.11RS-485 interfaces
28
1 First RS-485 interface
2 Second RS-485 interface
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Installation
Note!
Tension relief and bending radii
Ensure sufficient relief of tension on the cables during installation and note the minimum
bending radii of the cables.
Note!
If the cable shield is grounded, the grounding should only be connected to one end of the
cable, in order to avoid equipotential bonding currents.
Connecting to RS-485
1. Unscrew the 4 screws of the housing cover (see Figure 3.6 on page 23).
2. Remove the housing cover.
3. Route the STP cable through the first cable gland from left at the bottom of the Gateway
housing (see Figure 2.5 on page 17). The permissible cable diameter lies between
6...10mm.
4. Connect the STP cable to the first terminal block labelled "RS485" (see Figure 3.11 on
page 28) according to the following table.
5. For a daisy-chain connection, route the second STP cable through the second cable
gland from left at the bottom of the Gateway housing. Connect the second STP cable to
the second terminal block labelled "RS485" according to the following table.
6. To activate the RS-485 termination, set DIP switch number 7 to "ON" (see Figure 6.4 on
page 67).
7. Screw the housing cover to the housing again.
8. Tighten the cable gland with appropriate torque (see table "Installation torque cable
glands" on page 32).
The Gateway is now connected to the RS-485 network. The yellow RS-485
communication status LED starts flashing when a correct HART or Modbus protocol
message is received (see chapter 6.1).
Gateway wiring (RS-485 connection)
Wire RS-485 cable Terminal WHA-GW Meaning
RxD/TxD - (RS-485 A) A RS-485 differential signal
RxD/TxD + (RS-485 B) B
Shield SHD Cable shielding
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