4x digital inputs, 2x digital outputs, and
2x relay outputs
›Up to 15x Repeater Nodes (P2P-R)
To extend the system's range
General Description
The Dene Instruments Twin Link is capable
of transferring signals wirelessly over distances of up to 0.9mi (1.5km) line of sight,
providing sophisticated remote control without the need for expensive cabling.
The Input node has two universal isolated
input channels, and accepts a range of
inputs, including: TC and RTD, mA and V,
NPN/PNP, Potentiometer, and AC current
sensors. The Output node provides two
4-20mA isolated analog outputs for retransmission to PLCs and SCADA systems.
Both Input and Output Nodes also oer
four digital IO's, and are easily programmable for mimicking, alarms, and sophisticated
remote control of other equipment.
1
Twin Link
Wireless Point-to-Point System
Setting up your Twin Link Point-to-Point
system is fast and easy with Dene ToolBox.
The soware provides simple but exible
drop-down selections, with all input ranges
pre-calibrated for your convenience.
All functions and features are explained expertly in the dynamic sidebar help - perfect
for the novice starting out, or the expert
who wants to save commissioning time.
The Twin Link has been designed for harsh
industrial environments, and has been extensively tested for noise eects to and
beyond CE requirements.
For your safety and the prevention of damage to your P2P-I, P2P-O or P2P-R, as well as other
equipment connected to these units, please read and carefully observe all safety regula-tions and instructions. Use of these instruments in a manner not specied by the manufacturer may compromise the protection provided by the instruments.
Dene Instruments has not approved any change or modication to these devices by users.
Any modication or change could void users' authority to operate this equipment. Please
refer to CFR 47, Section 15.21.
These instruments should not be used to directly drive valves, motors, or other actuators,
unless equipped with appropriate safeguards. It is the responsibility of the user to identify
potential hazards that may arise in the event of a fault to unit, and implement safeguards for
the prevention of harm to persons or equipment.
CAUTION
Risk of electric shock
CAUTION
Risk of danger
For your safety, please read complete instructions prior to installation and operation of a
P2P node. In particular, consult this manual in all cases where hazard symbols are marked
on your P2P-I, P2P-O or P2P-R units, in order to understand and avoid potential hazards.
The safety of any system incorporating these units is the responsibility of the assembler of
the system.
CAUTION
Observe minimum safe distance
Dene Instruments P2P units comply with CFR 47, Section 1.1307(b)(1). For your safety,
please observe a minimum safe distance of 8" (20cm).
Connect using the Bridge Key (sold separately). Program using Dene ToolBox.
Protocols Modbus RTU
Serial data rate 9600 baud, 8-N-1
5
Construction
DIN 35 rail mount casing
IP20 rated - Install in a protective enclosure
(see 4.3). Installation Category II; Pollution
Degree 2; Flame resistant
Dimensions (H x W x D)
3.98 x 0.91 x 4.72" (101 x 23 x 120mm)
Dimensions (H x W x D, with included
antenna)
5.91 x 0.91 x 5.75" (150 x 23 x 146mm)
Single unit weight (with included antenna
and plugs) P2P-= 5.4oz (154g); P2P-O=
5.3oz (150g); P2P-R= 4.0oz (113g)
Environmental conditions
Operating temp -4 to 131°F (-20 to 55°C)
Storage temp -4 to 149°F (-20 to 65°C)
Operating humidity 0–85% non-condensing
Altitude 1.24mi (2,000m)
1.3 - Input Node (P2P-I)
Compliances
IP20 enclosure rating
FCC ID: 2ACTT-1409
47 Code of Federal Regulations; Part 15 - Radio
Frequency Devices; Subpart C - Intentional
Radiators, including Section 15.247 - Operation in
the band 2400–2483.5MHz
AS/ANS 4268:2012
Radio equipment and systems - Short range
devices - Limits and methods of measurement
ETSI EN 300 440-2, V1.4.1, 2010
Electromagnetic compatibility and Radio
spectrum matters (ERM); Short Range Devices
(SRD); Radio equipment to be used in the 1GHz
to 40GHz frequency range; Part 2: Harmonised
EN under article 3.23 of the R&TTE Directive
EN 301 489-3, V1.6.1, 2013
Electromagnetic compatibility and Radio
spectrum Matters (ERM); Electromagnetic
Compatibility (EMC) standard for radio
equipment and services; Part 3: Specic
conditions for Short Range Devices (SRD)
operating on frequencies between 9kHz and
40GHz
Inputs
2x Universal inputs See 9.3 for full input
specications and wiring
Digital IO's
4x Digital inputs Max rate 1Hz. Selectable
sink/source. Suitable for clean contacts,
NPN, PNP and voltage inputs (low input
<1.4V DC, high input 1.4–30V DC)
Max continuous input 20V DC
Not isolated to power supply common
2x Digital outputs Open drain (1A, 30V DC
max)
Relay Outputs
2x Relay outputs Form A relays
(5A 250V AC / 5A 30V DC)
Isolation to sensor and user input commons 2,300Vrms for 1min. Working voltage
250V AC
Life expectancy 100K cycles min at full load
rating
4x Digital inputs Max rate 1Hz. Selectable
sink/source. Suitable for clean contacts,
NPN, PNP and voltage inputs (low input
<1.4V DC, high input 1.4–30V DC)
Max continuous input 20V DC
Not isolated to power supply common
2x Digital outputs Open drain (1A, 30V DC
max)
Relay Outputs
2x Relay outputs Form A relays
(5A 250V AC / 5A 30V DC)
Isolation to sensor and user input commons 2,300Vrms for 1min. Working voltage
250V AC
Life expectancy 100K cycles min at full load
rating
Both OnUnits not paired. Check that all P2P nodes are powered on and
Both Flashing
TogglingWireless network successfully established - ready to transmit or receive
in range, and that line-of-sight is uninterrupted. (See 12.2 for
Troubleshooting.)
P2P-I & P2P-R:
P2P-O:Max available nodes has been reached
Cannot connect to the network
2.3 - Wireless Link Quality LED's
The green Wireless Link Quality LED's are
used to indicate the quality of the wireless
connection between nodes.
HIGH indicates 100% link quality, while LOW
indicates approximately 80% link quality (i.e.
80% of the receiving packet intact.) For the
most stable and reliable wireless connection, the link quality should be at HIGH, or
as close to it as possible.
In a network with one or more Repeaters,
each node indicates the link quality between
itself, and the nearest node that it can reach
in the direction of the Output node.
2.4 - Restart Button
The Restart button can be used to reboot
the node in the event of a malfunction. (This
action is the same as turning the power
on and o again - all user settings will be
retained.)
For example, in the network below:
›The Input node indicates quality of link C›Repeater 2 indicates the quality of link B›Repeater 1 indicates the quality of link A›The Output node indicates the quality of
link A
Repeater
2
C
B
Repeater
1
Node
A
To prevent accidental use, the Restart
button is inset and can only be pressed with
a ne-tipped, blunt instrument, such as a
pen or small screwdriver.
The Twin Link is dispatched from the factory with the default input type
of 4–20mA, and all Setpoints set to Transparent Mode (see 10.1). If you
wish to keep the defaults, you can skip to Step 2 now. To change your
input type, output scaling or setpoint conguration:
A Install Dene ToolBox (see Section 5).
B Connect the Input node (P2P-I) to your computer using the USB
Bridge Key (see 6.2). Then launch ToolBox and click the 'Connect' button (see 6.3).
C Congure your system as required, referring to 6.3–6.5 in this manual,
and also the Help Panel in the soware. You may like to wire your
Input and Output nodes now, using the diagrams in the Help Panel
as a guide.
D When you are nished conguring your system, click 'Disconnect' in
ToolBox, and then disconnect the Input node from your PC.
Note that it is usually not necessary to connect the Output node or the
Repeater to your PC, unless the Wireless Transmit Power or Mesh ID needs
to be adjusted (see 6.5).
2 - Install Output node
If possible, your Output node (P2P-O) should be powered up rst when
setting up your Point-to-Point system.
A Install the Output node (P2P-O) in an enclosure at the output location
(see 4.3).
B Supply power to the node (see 8.2).
C Wait until the NTWRK STATUS 1 and NTWRK STATUS 2 LED's (2.1A)
start toggling. This indicates that the network has been successfully
created, and the unit is ready to connect to other nodes.
D Wire your analog outputs (see 8.3). You may also wire your digital IO's
and relays now, if desired (see Section 10).
The analog outputs will briey output 3mA when the node is powered up or restarted. They will then output a 3.6mA fault signal until
a successful link with an Input node (P2P-I) is established.
A Install the Input node (P2P-I) in an enclosure at the input location
(see 4.3).
B Supply power to the node (see 9.2).
C Referring to 9.3A–9.3G, wire the two input channels as required for
your application. You may also wire your digital IO's and relays now, if
desired (see Section 10).
4 - Check connectivity
A Please wait at least 2 minutes aer powering up the Input node for
the wireless connection to be made. When a link has been successfully established, the NTWRK STATUS 1 and NTWRK STATUS 2 LED's
(2.1A) on the Input node will start toggling.
If the NTWRK STATUS LED's do not change from ashing to toggling,
then a connection cannot be established, and one or more Repeater
nodes may be needed (see Step 5, below).
B Check the 4 green Wireless Signal LED's on the Input node (P2P-I),
to establish link quality (see 2.3). If the link quality is low, then one or
more Repeater nodes may be needed (see Step 5, below).
5 - Add Repeaters
If a successful link cannot be established between the Input and Output
nodes, or the link quality is low, then one or more Repeater nodes can
be added.
Note that for a successful wireless connection (using the included 3DBi
antenna), all nodes must be within a range of 0.9mi (1.5km) LOS. If line
of sight is impeded by buildings or topography, the transmission distance
must be reduced until a strong signal can be obtained.
A Install each Repeater (P2P-R) in an enclosure at a location that is in
line of sight from any nodes it will communicate with (see 4.3).
B Supply power to the node (see 11.2).
C Provided the Mesh ID of the Repeater is a match to the Input and
Output nodes, the Repeater will be automatically detected and in-
cluded into the network. (See 11.3 for more about the Mesh ID).
Twin Link nodes should be installed in locations that do not exceed the maximum operating temperature, and at a safe distance
from other devices that generate excessive
heat. The installation environment should
provide good air circulation to the unit.
0.91"
(23mm)
The plastic casing and product label may be
cleaned, if required, using a so, damp cloth
and neutral soap product.
Caution should be exercised when cleaning
the unit to avoid water to dripping inside, as
this will damage the internal circuits.