OPW M00-20-7074 User Manual
Part Number: M00-20-7074, Rev. 6
Issue Date: 9/15/2016
Supersedes: 12/14/2011
M00-20-7074
Wireless Modem
IOM
Digi-XCTU v6.3.1 and above
Doc. No.: M00-20-7074 Rev.: 6
Copyright Information
© Copyright 2016, OPW. Printed in the USA.
© 2016 Delaware Capital Formation, Inc. All Rights Reserved. DOVER and the DOVER logo are registered
trademarks of Delaware Capital Formation, Inc., a wholly-owned subsidiary of Dover Corporation.
Contact OPW Fuel Management Systems
Visit us at www.opwglobal.com, or contact us at:
Call 1-877-OPW-TECH (877-679-8324)
For calls outside US and Canada, call +1-708-485-4200
Fax 1-800-421-3297
Monday through Friday, 7 a.m. to 6 p.m., US CST
For technician registration, see
http://opwglobal.com/TechSupport/TechnicianRegistration.aspx.
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For in-depth training via OPW University, see
http://www.opwglobal.com/opw-u-training-registration.html.
Table of Contents
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Section 1 Get Started
1.1 Overview
1.2 Wireless Modem Kit
Section 2 Installation
2.1 Pre-Installation
2.1.1 Installation Restrictions and Requirements
2.1.2 Conduct a Site Survey
2.2 Typical Installations for the Wireless Modem
2.2.1 Typical Installations
2.2.2 FIT-Mounted 6 inch Antenna
2.2.3 FIT with Remote Antenna (Recommended)
2.2.4 Multiple FITs (Networking)
2.2.5 FSC with Remote Antenna (Recommended by Manufacturer)
5
5
6
7
8
8
8
12
12
12
13
14
14
2.2.6 FSC with Remote Modem
2.2.7 FSC with Modem-Mounted Antenna (Not Recommended)
2.2.8 Automatic Tank Gauge Console
2.2.9 Communication
2.2.10 FIT Wiring
2.2.11 FSC Installation Location Wiring
2.2.12 Tank Gauge Installation Location Wiring
Section 3 XTEND Modem Advanced Configuration
3.1 What You Will Need
3.2 Installing the Software
3.3 Configuration Settings
14
14
14
16
17
17
18
19
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3.4 FSC to Multiple FIT Operation (3 or More Wireless Modems)
3.4.1 FSC Modem Configuration
3.4.2 FIT #1 Modem Configuration
3.4.3 FIT #2 Modem Configuration
3.5 Point-To-Point Operation (2 Wireless Modems)
3.5.1 Modem #1 Configuration
3.5.2 Modem #2 Configuration
Section 4 Operation and Troubleshooting
4.1 Hardware Setup
4.2 Range Test Setup
4.2.1 Performing a Range Test
4.3 Switch Settings
4.4 Troubleshooting
24
25
26
27
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29
30
30
34
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39
39
4.5 OPW Switch Settings
Warranty
Revision History
40
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42
Section 1 Get Started
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Figure 1-1 Wireless Modem
These instructions show the modem hardware setup, test of the range of the radio link, advanced (optional)
configuration and suggestions for better operation.
NOTE: Some installations might not be applicable for Wireless Communications. Contact
OPW-FMS technical service for site survey and test information if you are not sure of your
installation site.
1.1 Overview
Your wireless modem can be used in many applications:
l Sites that cannot be connected by conduit, sites that contain obstructions, roads, railroad tracks, water,
etc.
l Property with restrictions on where you can dig.
l Locations with thick, reinforced concrete, such as airports, or trucking and military installations.
l Up to seven (7) wireless modems can communicate within the same network.
1.2 Wireless Modem Kit
The Wireless Petro-Net Modem works with these systems:
l K800™ (software 1.09 or higher)
l K800
l System2™
l C/OPT
l FSC3000™
l SiteSentinel
The standard kit includes:
l Radio modems with 6 in (152.4 m) antennas
l Petro-Net
l Two (2) directional antennas
™
™
Hybrid
®
Integra™
™
connectors
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l Two (2) 20 ft (6.1 m) antenna cables
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Section 2 Installation
This section will give information on applicable installation procedures for different types of setups.
"Pre-Installation" on the next page will show the restrictions and requirements for wireless
communications.
"Typical Installations for the Wireless Modem" on page12 will show instructions on setup
procedures for basic installations.
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2.1 Pre-Installation
This section provides information about Wireless Petro-Net Modem requirements and restrictions for proper
installation.
2.1.1 Installation Restrictions and Requirements
NOTE:
l Some sites might NOT be suitable for Wireless Communication.
l Avoid metal buildings; the wireless modem will not communicate through metal
buildings.
l Locate the modem near a window.
l Mount the antenna on the outside of the building.
l Keep the path to the receiving modem clear. If vehicle traffic at the island blocks the
view of the receiving modem, you must reposition the antenna to maintain LINE-OFSIGHT from antenna to antenna.
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IMPORTANT: Improper operation due to poor installation planning is not covered under
warranty; it is your responsibility to verify the suitability of the wireless application.
2.1.2 Conduct a Site Survey
Before you decide to install the Wireless Modem, you must first make sure that it will work at the desired
location. Communication systems have several components that should be looked at in each system:
l Transmitting element
l Receiving device
l The environment through which communication is occurring; and
l Antennas or other focusing elements
Environment
The space between the transmitter and the receiver is the system’s environment. This will be the main focus
of your site survey. Physical obstructions and noise (interference) can enter into the environment and limit the
system’s ability to get information from one place to another.
Attaining RF Line-of-Sight (LOS) between the sending and receiving antennas is essential in achieving a
reliable signal between the FIT and the FSC. There are two types of LOS that are generally used to describe
an environment:
l Visual LOS is the ability to see from one site to the other. It requires only a straight linear path between
two points.
l RF LOS requires not only visual LOS, but also a football-shaped path, called a Fresnel Zone, free of
obstacles for data to optimally travel from one point to another.
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Figure 2-1 Fresnel Zone
In order to achieve the greatest range, the Fresnel Zone must be free of obstructions. Buildings, trees or any
other obstacles in the path will decrease the communication range. If the antennas are mounted just barely
off the ground, more than half of the Fresnel Zone ends up being obstructed by the Earth, resulting in
significant reduction in range. To avoid this problem, the antennas should be mounted high enough off of the
ground so that the Earth does not interfere with the central diameter of the Fresnel Zone.
It is also important to understand that the environment may change over time due to growing vegetation,
building construction, etc. If obstacles exist between two points, the antennas can be raised on one end or on
both ends to clear the Fresnel Zone of obstructions.
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Figure 2-2 Antenna Height O ver Physical Obstructions
How far above the ground and other obstacles the antennas need to be is determined by the diameter of the
Fresnel Zone. The diameter of the Fresnel Zone depends upon the frequency and distances between the
two radios. Various data points were inserted into Fresnel Zone formulas to provide some points of
reference. The following table provides approximate Fresnel Zone diameters at 1,000 ft (304.8 m) and 1-mile
(1.6 km) ranges.
NOTE: OPW does not recommend a distance greater than 5,000 feet (1524 m).
Fresnel Zone Diameters
Range
Distance
Required Fresnel Zone Diameter (900
MHz Radios)
Required Fresnel Zone Diameter (2.4
GHz Radios)
1000 ft. (300
m)
16 ft. (7 m) 11 ft. (5.4 m)
1 mile(1.6 km)
32 ft. (12 m) 21 ft. (8.4 m)
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In order to have ground clearance, the combined antenna height should be equal to the diameter of the
Fresnel Zone.
Increased Antenna Gain
Transmitting and receiving antennas are used to focus and direct radio waves in specific directions.
Antennas are another component that can be adjusted to increase the distance data can travel in a wirelesscommunication system. Antenna gain is an important variable that can be adjusted in order to increase
range. Antenna gain describes the amount of focus the antenna is able to apply to the system by directing the
energy. The more focus the antenna can apply, the more range the system will yield. High-gain antennas can
achieve greater range than low-gain antennas, though they cover less area.
Omni-directional antennas focus energy evenly in a doughnut-shape around the antenna.
Gain vs. Vertical Beam Width (VBW)
l 2.1 dBi (0 dBd) = 75º VBW
l 5.1 dBi (3 dBd) = 33º VBW
l 8.1 dBi (6 dBd) = 17º VBW
Directional antennas focus energy more specifically in one direction.
Gain vs. Vertical Beam Width (VBW)
l 8.1 dBi (6 dBd) = 70º VBW
l 11.1 dBi (9 dBd) = 55º VBW
l 15.1 dBi (13 dBd) = 35º VBW
Figure 2-3 Omni-Directionaland DirectionalAntenna SignalPatterns
NOTE: Notice how, like the flashlight, the beam width is decreased as gain is increased.
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Antenna Installation Considerations
When mounting an antenna, care should be taken to make sure it is as far away from metal objects as
possible. If nearby metal gets too close to an antenna, it has the potential to interfere with the way the
antenna radiates and may cause some undesirable results.
In some cases, a cable must be used to connect an antenna to a transmitter or receiver. All RF cables add
some loss to the system. For any given cable, the longer the cable the more signal will be lost over that cable.
Because of this the length of the cable should be kept as short as possible. Often a longer serial cable can be
used to minimize the length of the antenna cable.
TIP: If you have two (2) wireless modems, you do not have to configure the modems and you
can proceed with the installation instructions. The modems are pre-configured for use with one
(1) or two (2) modems.
NOTE: If you have three or more wireless modems, please refer to "FSC to Multiple FIT
Operation (3 or More Wireless Modems)" on page24 for setting up multiple modems.
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2.2 Typical Installations for the Wireless Modem
This section covers the various mounting and wiring instructions for typical Wireless Petro-Net Modem®
installations.
2.2.1 Typical Installations
The Wireless Modem can be set up to work with these installations:
l
l FIT with Remote Antenna
l Multiple FITs
l FSC with Modem-Mounted Antenna
l FSC with Remote Modem
NOTE: Check with local authority for suitability of installation.
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l FSC with Remote Antenna
2.2.2 FIT-Mounted 6 inch Antenna
NOTE: The FIT-Mounted 6 inch antenna is not suitable for all applications.
When setting up the Wireless Modem, you can install the antenna directly onto the FIT.
1. Connect the power supply to the power terminals in the FIT.
2. Place the modem on the bottom of the FIT.
3. Locate and drill a .375-inch hole for the antenna cable, seal this hole with silicone sealant.
4. Locate a position on the pedestal to install the antenna, drill a .25-inch hole for the connector.
5. Remember to keep line-of-sight with the FSC antenna, (e.g. this cannot be blocked by vehicle traffic at
the island) otherwise proceed to "FIT with Remote Antenna" above.
Figure 2-1 FIT-Mounted Modem Power Supply
6. Locate the power supply behind the main board.
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7. Connect the power cable to the power connector on the system.
8. Connect the Petro-Net cable at this time. (Black wire to Terminal 1; White wire to Terminal 2).
Figure 2-2 FIT-Mounted Modem: Inside View
9. Place the modem on the bottom of the FIT cabinet, connect the power and Petro-Net connectors.
10. Route the 1-foot antenna cable through the .375-inch hole to the .25-inch hole in the pedestal.
11. Seal the hole in the FIT with silicone
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Figure 2-3 FIT RemoteAntenna:Outside View
2.2.3 FIT with Remote Antenna (Recommended)
The Wireless Modem can also be set up with a remote antenna. For remote antenna mounting, attach the
directional antenna to a pole or other surface using the supplied mounting brackets. Connect the 20- foot
antenna cable to the modem or to the 1-foot cable in the FIT. When mounting the antenna remotely be sure
to protect the antenna cable with the appropriate conduit.
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