CENTURION SYSTEMS WIZO-LINK User manual

WIZO-LINK
USER MANUAL
WIRELESS INPUT/OUTPUT MODULES
Centurion Systems (Pty) Ltd
www.centsys.com

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Additionally, Centurion Systems (Pty) Ltd makes no representations or warranties with respect to
this manual. No part of this document may be copied, stored in a retrieval system or transmitted in any
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consent of Centurion Systems (Pty) Ltd.
1986 1990 1995 1999 Today
Sales and technical support
to Africa, Europe, Asia,
the Americas, Australia



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1. INTRODUCTION
 
1.1.1. Architecture
1.1.2. Security and Management Features
 
2. NETWORK REDUNDANCY
 
 
 
 
2.4.1. Establishing the Network
2.4.2. Network Transmission Integrity
 
2.6. Power Redundancy Options and Requirements
3. DISTRIBUTED I/O
3.1. What are inputs and outputs?
 
3.2.1. Modes of Operation
3.2.2. I/O Relationships
4. QUICK START SECTION
4.1. Getting Started
4.2. The WiZo User Interface
4.2.1. Power LED
4.2.2. NET LEDs
4.2.3. I/O
4.3. Default State
4.4. Master reset the WiZo (Factory Reset)
 
4.5.1. Network Master Process
4.5.2. Adding Additional Devices or Device Federation
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Contents

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 
4.6.1. One to One
4.6.2. One to Many
4.6.3. Implementing Further I / O Links
4.6.4. Output State
4.6.5. Modes of Operation for the WiZo Output
4.6.6. Removing an IO Link
4.6.7. Removing a Device from a Network
4.7. Supervision Mode
4.7.1. SupervisionModeNotication
4.7.2. Removing I/O Links while in Supervision mode
5. SPECIFICATIONS
 
6. INSTALLATION
6.1. Prepare for Installation
6.2. Potential Applications
6.3. Troubleshooting
6.3.1. Weak Signal
6.3.2. I/O
7. WARRANTY INFORMATION
8. APPENDIX
8.1. Wiring a G-ULTRA into a D-Series Controller via a WiZo
8.2. Wiring a G-ULTRA into a Electric Fence Controller via WiZos
8.3. Wiring a G-ULTRA into an Alarm System via WiZos
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CONTENTS
Icons used in this manual
This icon indicates tips and other information that could be useful during the
installation.
This icon denotes variations and other aspects that should be considered during
installation.

note of critical aspects that MUST be adhered to in order to prevent
injury.

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INTRODUCTIONSECTION 1
1. Introduction
 is a mesh networkable product which enables a fully redundant network of
devices to be constructed. The  network topology requires a minimum of two
 devices to be connected to create a network; as more devices are added
network redundancy is improved until full redundancy is achieved. Integrated inputs and
outputs (I/O) enhance the Network’s ability to respond to events and actuate devices.
A  network is a standalone network of devices that inter-communicate,
managing the distributed I/O. Each device is supervised, which ensures that, when a
deviceislosttothenetwork,anoticationissentsothatthenetworkcanbemaintained
to mitigate the loss.

1.1.1. Architecture
1.1.2. Security and Management Features
is comprised of two
elements:
1. The network, which enables
communication between
devices as both a receiver and a
transmitter.
2. The distributed I/O of which each
 device has one input
and one output.
When a factory fresh  device is powered up, it does not yet belong to a
network of devices. The  device can either be added to an existing network or
beusedasaninitiatortocreateanewnetwork.Oncecongured,a device
retainsitscongurationevenwhenpowerislosttothedevice.
The network is initiated on a WiZo; which requires that one WiZo be elected as the
temporary mesh network master. As soon as a second WiZo joins the network, there is
no longer a need for the master role and it falls away, with the WiZo devices determining
the best message transmission route. As additional WiZo devices are added, the network
management is delegated amongst the WiZos, building up the mesh until it reaches full
network redundancy.
When a  mesh network has been initiated and then federated, the devices
belong to a secure network with 128 BIT encryption. Additional nodes can only be added
to the network if one of the devices on the network is placed into “Add Node” mode.
This requires physical access to at least one device.
FIGURE 1. NETWORK ARCHITECTURE
RADIO FREQUENCY 2.4GHZ
INPUTS AND OUTPUTS
Owing to the federated nature of the network, when one  device
is placed into “Add Node” mode, this places the mesh network of 
devices into “Add Node” mode.

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
address. This means that, if by coincidence another WiZo is being


Once WiZo devices has been purchased, the user may be evaluating the installation
from one of two angles. Firstly, as an existing CENTURION customer who already has an
existing CENTURION product, or products, in operation, or secondly as someone new to
CENTURION’s product range wanting to get the most value for money out of his or her
purchases.
If you are an existing CENTURION customer, the  enables you to enhance
your existing product investment. Each  device adds distributed I/O which
can be used for several applications. Since the  devices form a Mesh-able
Network, each new device improves the network strength. This is implemented with no
need for further infrastructure investment. Provided the device has power, and is able to
connect to the mesh network, it functions as an interconnected device enhancing network
capabilities.
If the user is a new CENTURION product customer, please keep in mind that WiZo-
isastandaloneproductoeringthatcananddoesintegratewithCENTURION’s
product range.  forms a standalone network of devices, which has the option
of integrating via the G-ULTRA GSM unit and the G-REMOTE mobile application to be
activated and used as an interface to the  network. This is, however, not a
requirement, and the network,oncecongured,willself-manageand
self-heal, functioning independently and reliably.
The WiZo network is a standalone network, which may consist of up to 50 or more
individual units. The network is constructed of  devices, which are nodes on
the network. Once a  device is added or allowed entry, the device is trusted
and is managed as a node on the network.
As a node, the  improves the strength of the network by;
1. Adding an additional path or hop to the network.
2. network redundancy is improved.
3. additional I/O is added.

A single WiZo device does not form and cannot form a mesh network; a
minimum of two devices is required.
INTRODUCTIONSECTION 1

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NETWORK REDUNDANCYSECTION 2

Full network redundancy takes full advantage of the mesh network integrity by ensuring
that the message that needs to travel will reach its destination. Redundancy can be
achieved with three devices or more. The  device will continue to deliver the
mostrecentmessage,indenitely,untilthemessageisdelivered.Whenthemessage
is delivered, an acknowledgement is returned; all messages sent have end to end
acknowledgements.
In a mesh network, each device is connected to every other device in the network. In
an ideal environment, transmission is always perfect, and the message always arrives
intact.However,inpractice,manyfactorsinuencesignaltransmissionandthemesh
network principles and topology ensure that the message will always be delivered to its
destination. This is achieved by;
1. Line-of-sight or a direct connection,
2. through routing via adjacent devices.
The network strength or health is indicated locally at each device.
As shown in Figure 2, node A has
a direct line-of-sight connection to
node C. Node A can also route its
message via node B or node D to
reach node C.
The message has three routes
through which it can travel, which
guarantees that the message is
received, unless there is total
network failure.
Partial redundancy is achieved when
a node has at least one alternative
path to deliver its message to the
target device.
As shown in Figure 3, A has a line of
sight to node C. If the line of sight
is interrupted, the message will be
redirected via the mesh network via
node B.


FIGURE 2. FULL NETWORK REDUNDANCY
FIGURE 3. PARTIAL NETWORK REDUNDANCY
C
C
D
C
D
C
A
A
B
B
MESSAGE
MESSAGE

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Although two  devices are
required to form a basic network,
this does not constitute a mesh
network. Node A has direct line-
of-sight to Node B and Node B the
same for Node A; if there were
interruption, there is no alternative
path for the message to be
delivered.
When planning the network, a few essential elements must be considered before
physically installing each  device or node. Since the  is a wireless
device, physical installation is minimal, and this does allow for moving elements around.
However, sensible planning to begin with will ensure that the network is set up and
installed with minimal errors or issues.
When planning the  network, it is important to consider the paths that are
available for a message to travel from one point to another. It is possible to create a
network where there is a combination of full- and partial-redundancy. When travelling,
the message may have line-of-sight from source to destination node, or the message
may be routed via multiple nodes before it reaches its destination. The 
devices determine the best route to deliver the message, and good network planning
goes hand-in-hand with this process to ensure that the devices have enough available
paths to ensure that the message is delivered.

FIGURE 4. BASE NETWORK - NO REDUNDANCY
A
B
MESSAGE
NETWORK REDUNDANCYSECTION 2
devicesthatdonothaveanyI/Olinksconguredaddvaluetothe
network as they function as repeaters. This helps strengthen the robustness of
the mesh network.
When mastering the network, mastering onsite has the advantage of the master
selecting a channel that has low energy and minimal interference from other RF
devices or even an adjacent  network.
Redundancyisaectedbythedistancebetweennodesaswellastheavailability
of nodes. This can be impacted by obstructions, where although the devices
are close enough, or there are enough nodes on the network, the interference
prevents the signal from being transmitted or received.


More than one WiZo Network can coexist on the same channel, provided they
are not in permit mode at the same time, which will interfere with federation.

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NETWORK REDUNDANCYSECTION 2
Shown in Figure 5 below is an example network, which links several common devices
into a mesh network. Owing to proximity, certain devices have more than one path to
transmit and receive messages, whereas other devices do not. It is not always possible
to install the  in an ideal location to guarantee optimal signal strength;
therefore, it is important to plan carefully to ensure that, as the installer, the devices are
not installed in such a way as to reduce signal strength, but so that signal strength is at
its best.
FIGURE 5. EXAMPLE NETWORK
Driveway
Geyser
JoJo Tank Out Building
Gate
Motor
House
Geyser
Garage Door
Geyser
Signal too
weak
WiZo added to improve
mesh capability
and ensure network
remains robust
Signal too
weak
Gate
Repeater
WiZo
Geyser
Borehole
Pump
When the  mesh network is fully redundant two green LEDs will
illuminate in the NET area on the PCB. If only one is illuminated, this means
that the user does not have full network redundancy.
‘Lost’ refers to any number of eventualities which includes: device(s) struck by
lightning, power loss, etc., and does not necessarily refer to device failure.
The above example consists of the following:
A home which has the following devices near,
• Geyser
• JoJo Tank
• Borehole Pump
• Outbuilding Geyser
Devices which are further away from the home are,
• Garage Door
• Gate Motor

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NETWORK REDUNDANCYSECTION 2
If, for example, the Garage Door WiZo was lost there would be no link between the
devices installed in the actual home and the gate motor as there was only one path
between the fully-redundant network and the adjacent nodes.
The devices located in the area around the home have higher redundancy, and they will
continue to function as a mesh network. To create a bridge or additional path to avoid
meshed failure, a  can be installed and used as a repeater. Since each WiZo-
 already functions as this in its usual role, once joined to the network this role is
fullledwithnoadditionalsetuprequired.
• If one notes in Area A, these devices all have full redundancy as there are
multiple paths available to deliver the message
• However, in Area B, i.e. the distance between the Gate Motor and the Home
there is only one line-of-sight link. Message delivery is guaranteed provided there is
 clearline-of-sightandthereissucientsignalstrength
We recommend that the  not be installed in the following locations:
• Metal enclosures, which dampen signal
• Metal includes ferrous and non-ferrous
• Steel, mild steel, etc.
• Aluminium
• The device should not be installed on a metal base or other materials that can absorb
or dampen signal, and should be at least 100mm (See above)
• In area C, we do have partial redundancy; however, the number of paths for adjacent
nodes is limited
• In area D, a WiZo has been used as a repeater. This increases network strength by
adding in the additional path ensuring that network redundancy has been achieved
If the red LED illuminates in the NET section, the WiZo has lost signal and, if
the Amber LED illuminates, there is weak signal.
• When referring to transmission, we refer to the ability of the device to
transmit and receive signals via its antenna
• Atmosphericconditionscanaectwirelesstransmission.Thisincludesair
pressure, ambient temperature, lighting storms, dust storms causing static,
dry static ambient air and so on
The  unit has an omnidirectional antenna on the PCB. This antenna has
a small surface area and, since it operates within the RF band, this means that it is
susceptible to interference. When installed, a few precautions must be observed to
ensure minimal interference exists.
The  unit has an omnidirectional antenna on the PCB. This antenna has
a small surface area and, since it operates within the RF band, this means that it is
susceptible to interference. When installed, a few precautions must be observed to
ensure minimal interference exists.

