Precision Digital PDW90-BA, PDW90-S6N-3332, PDW90-S6N-0300, PDW90-S2N-0100, PDW90-S8N-4442 User manual
...Page 1
PDW90 Point to Multi-Point Wireless
Instruction Manual
Wireless System
• Point to Multi-Point Signal Wire Replacement
• Simple to Configure Using PDW Manager
Programming Software and Onboard USB
• Range: 1 Mile Line-of-Sight, 500 Ft Indoor
• Analog, Digital, and RS-485 Inputs and Outputs
• Remote or Attached, Directional and Omnidirectional Antennas Available
• Field Units Feature Flanges for Wall or Pipe Mounting
• Base Station Housed in Plastic NEMA 4X Field Enclosure
• Field Units Housed in IP68, NEMA 4X Enclosure
PRECISION DIGITAL CORPORATION
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PDW90 Point to Multi-Point Wireless Instruction Manual
Caution: Read complete instruc-
tions prior to installation and opera-
tion of the device.
Warning: Risk of electric shock or
personal injury.
Warning!
This product is not recommended for life support applications or applications where malfunctioning could result in personal injury or property loss. Anyone using
this product for such applications does so at their own
risk. Precision Digital Corporation shall not be held liable for damages resulting from such improper use.
!
Disclaimer
The information contained in this document is subject to change without notice. Precision
Digital makes no representations or warranties with respect to the contents hereof and specifically disclaims any implied warranties of merchantability or fitness for a particular purpose.
Limited Warranty
Precision Digital Corporation warrants this product against defects in material or workmanship for the specified period under “Specifications” from the date of shipment from the factory. Precision Digital’s liability under this limited warranty shall not exceed the purchase
value, repair, or replacement of the defective unit.
Registered Trademarks
Modbus® is a registered trademark of Schneider Electric. All other trademarks mentioned in
this document are the property of their respective owners.
© 2017 Precision Digital Corporation. All rights reserved.
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PDW90 Point to Multi-Point Wireless Instruction Manual
Table of Contents
Table of Contents .................................................... 3
Table of Figures ...................................................... 3
Introduction ............................................................. 4
Ordering Information ............................................... 5
Specifications .......................................................... 6
PDW90 Base Station Specifications ................... 6
General ............................................................ 6
Dual Analog Inputs Module .............................. 6
Dual 4-20 mA Outputs Module ........................ 6
Digital Input / Output Module ........................... 6
Dual Relays Module ......................................... 6
PDW90 Field Unit Specifications ......................... 7
General ............................................................ 7
Isolated 4-20 mA Transmitter Output ............... 7
Digital Input / Output Terminal ......................... 7
General Specifications ......................................... 8
Wireless Radio ................................................. 8
PDW Manager Software .................................. 8
RS-485 Modbus® RTU Serial Comms ............. 8
Safety Information ................................................... 8
Installation ............................................................... 8
Unpacking ............................................................ 8
Pre-Installed Conduit Plug ................................... 9
Base Station Conduit Holes ................................ 9
Mounting Instructions .......................................... 9
Cover Jam Screw ................................................ 9
FCC Notice .......................................................... 9
IMPORTANT .................................................... 9
Canada (IC) Notice .......................................... 9
Base Station Connections ................................. 10
Power Connector ........................................... 11
Analog Input Connector ................................. 11
Analog Output Connector .............................. 11
Digital I/O Connector ..................................... 11
Relays Connector .......................................... 12
Switching Inductive Loads ............................. 12
Modbus RTU Serial Communications ........... 13
Field Unit Connections ...................................... 14
Power Connector ........................................... 15
Signal Connector ........................................... 16
4-20 mA Output Connector ........................... 16
Digital I/O Connector ..................................... 16
Modbus RTU Serial Communications ........... 17
Setup and Programming ....................................... 18
Overview ........................................................... 18
Programming the Base Station ......................... 18
Connecting Field Units to Base Station ......... 19
Base Station Configuration ............................ 20
Input / Output Module Configuration ............. 21
Remote Unit Configuration ............................ 25
Advanced Configuration ................................ 29
Programming the Field Units ............................ 30
Field Unit Setup Menu ................................... 31
Programming the Field Units with PDW
Manager ........................................................ 34
Troubleshooting .................................................... 37
Mounting Dimensions ........................................... 40
PDA6963 Stainless Steel Pipe Mounting Kit for
Field Units ............................................................. 41
Table of Figures
Figure 1. Fully Loaded Base Station Main Board . 10
Figure 2. Base Station Power Connection ............ 11
Figure 3. Base Station Analog Input Connection . 11
Figure 4. Base Station Digital I/O Connection ...... 11
Figure 5. Base Station Analog Output Connection
.............................................................................. 11
Figure 6. Base Station Relays Connection ........... 12
Figure 7. AC and DC Loads Protection ................. 12
Figure 8. Low Voltage DC Loads Protection ......... 12
Figure 9. Base Station Three- and Five-Wire RS-
485 Modbus Connection ....................................... 13
Figure 10. Base Station Multiple Device RS-485
Modbus Connection .............................................. 13
Figure 11. Field Unit Device Assembly, Rear View
.............................................................................. 14
Figure 12. Field Unit Power Connection .............. 15
Figure 13. PDW90 Field Unit and 2-Wire
Transmitter Powered from Same Supply .............. 15
Figure 14. Field Unit Analog Input Connection ..... 16
Figure 15. Field Unit 4-20 mA Output Connection
.............................................................................. 16
Figure 16. Field Unit Digital I/O Connection ......... 16
Figure 17. Field Unit Three- and Five-Wire RS-485
Modbus Connection .............................................. 17
Figure 18. Field Unit Multiple Device RS-485
Modbus Connection .............................................. 17
Figure 19. Base Station Dimensions – Front View
.............................................................................. 40
Figure 20. Base Station Dimensions – Side View 40
Figure 21. Field Unit Dimensions – Front View .... 40
Figure 22. Field Unit Dimensions – Side Cross
Section View ......................................................... 40
Figure 23. PDA6963 Stainless Steel Pipe Mounting
Kit for Field Units .................................................. 41
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PDW90 Point to Multi-Point Wireless Instruction Manual
Introduction
The Precision Digital PDW90 is a rugged, customizable, point-to-multipoint wireless bridge. It
offers a highly-flexible means of getting analog, digital, and Modbus® signals from where you
have them to where you need them. Modular input/output cards and expandable field units
mean that the PDW90 can be customized to meet the needs of any wireless application.
The PDW90 is simple to order, simple to configure, and easy to trust with your application. It
can be ordered as either preassembled kits or as individual, modular components. Guaranteed
ranges assure it will work with your application or you can send it back - no questions asked. A
wireless survey tool is available for those installations that require a site survey for longer distances, making it easy to verify the setup will work the first time.
Field units accept analog, discrete, and Modbus® inputs and wirelessly broadcast them to the
PDW90 base station. The base station can recreate these signals with its onboard RS-485 or
analog and digital I/O cards. It can also be programmed to activate relays or output analog/digital signals to the field units. Just put the field units wherever there are process signals and the
base station in the control room.
Fixed or remote antenna modules as well as a wide range of accessories are available, including mounting kits, antenna-related accessories, and repeaters. The antenna may be directly attached or remotely located. High gain directional antennas are also offered.
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Ordering Information
Model Number
Description
PDW90-BA
PDW90 Point-to-Multipoint Wireless Process Signal Base Station
PDW90-FN
PDW90 Point-to-Multipoint Wireless Process Signal Field Unit
Model Number
Description
PDM90-CA
PDW90 Dual Analog Input Base Station Module
PDM90-CT
PDW90 Dual Analog Output Base Station Module
PDM90-CR
PDW90 Dual Relay Output Base Station Module
PDM90-CD
PDW90 Dual Digital I/O Base Station Module
Model Number
Description
PDA10
PDW Wireless Signal Strength Survey Tool
PDA3900-12-N
PDW 900 MHz Antenna, 1/2" NPT
PDA3900-34-N
PDW 900 MHz Antenna, 3/4" NPT
PDA3900-6Y-N
Yagi Antenna 6dB
PDA3900-9Y-N
Yagi Antenna 9dB
PDA3120-S
RP-SMA M/F Antenna Cable 20ft
PDA3140-S
RP-SMA M/F Antenna Cable 40ft
PDA3120-N
RP-SMA F to N Male Antenna Cable 20ft
PDA3140-N
RP-SMA F to N Male Antenna Cable 40ft
PDA6963
Stainless Steel Field Unit Mounting Kit
PDA-MICROUSB
Micro-USB PC Programming Cable
PDW30-RNA
PDW30 Repeater Kit
Base Station Expansion Modules
Model Number
Field Units
Dual
Analog In
Dual
Analog Out
Dual
Relays
Quad
Digital I/O
PDW90-S2N-0100
2 0 1 0 0
PDW90-S2N-1111
2 1 1 1 1
PDW90-S4N-0200
4 0 2 0 0
PDW90-S4N-2221
4 2 2 2 1
PDW90-S6N-0300
6 0 3 0 0
PDW90-S6N-3332
6 3 3 3 2
PDW90-S8N-0400
8 0 4 0 0
PDW90-S8N-4442
8 4 4 4 2
PDW90 Wireless Components
Base Station Modules
Accessories
PDW90 Point to Multi-Point Wireless Instruction Manual
Complete Systems
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PDW90 Point to Multi-Point Wireless Instruction Manual
Maximum
Connected
Field Units
32 field units
Network ID
Programmable: 0 - 99
Programming
Methods
Via PC with PDW Manager software
Power
24 VDC ±10%, 36 W max, 2.4 W
min; Power consumption is dependent on type and number of modules
installed
Non-Volatile
Memory
All programmed settings are stored
in non-volatile memory for a minimum of ten years if power is lost.
Environmental
Operating temp. range: -40 to 65°C
Storage temp. range: -40 to 85°C
Relative humidity: 0 to 90% noncondensing
Connections
Removable screw terminal blocks
accept 12 to 22 AWG wire.
Peak Antenna
Gain
2.15 dBi ± 1.0
Enclosure
15.75" x 11.81" x 7.03" (40 cm x 30
cm x 17.9 cm) (W x H x D);
NEMA 4X; Thermoplastic Polyester;
Color: Gray
Tightening
Torque
Screw terminal connectors: 5 lb-in
(0.56 Nm)
Shipping
Dimensions
17" x 14" x 9" (43.2 cm x 35.6 cm x
22.9 cm) (W x H X D)
Shipping
Weight
6.5 lbs (2.95 kg)
Warranty
3 years parts & labor
Inputs
Field selectable: 4-20 mA, 0-10 V,
0-5 V, 1-5 V
Accuracy
±0.03% of calibrated span ±1 count
Isolation
500 V
Recalibration
All ranges are calibrated at the factory. Recalibration is recommended
at least every 12 months.
Temperature
Drift
0.005% of calibrated span/C max
from 0 to 65C ambient,
0.01% of calibrated span/C max
from -40 to 0C ambient
Signal Loss
Inputs will remain off (open circuit)
until wireless units are reconnected.
Input
Impedance
Voltage ranges: greater than
110 k
Current ranges: less than 220
HART
Transparency
Analog input will not interfere with
existing HART communications on
the wired 4-20 mA signal
Output Source
Analog input from connected wireless unit
Calibration
Factory calibrated:
4.000 to 20.000 = 4-20 mA output
Accuracy
± 0.1% of span ± 0.004 mA
Isolation
500 V
Temperature
Drift
0.4 µA/C max from 0 to 65C ambient, 0.8 µA/C max from -40 to 0C
ambient.
Loop Power
Supply
Internally powered; no external supply needed
Output Loop
Resistance
Power supply
Minimum
Maximum
24 VDC
10
900
Signal Loss
After approximately 25 seconds of
trying to reconnect, mA output will
become 3.2 mA
Channels
Four (4) digital connections, independently field selectable as either
inputs or outputs
DI Logic High
3 to 5 VDC
DI Logic Low
0 to 1.1 VDC
DI Contact
Dry contact to ground can be used
to activate the input
DO Logic High
3 to 5 VDC
DO Logic Low
0 to 0.4 VDC
Source
Current
10 mA maximum output current
Sink Current
1.5 mA minimum input current
Signal Loss
Digital output goes to logic high
Rating
2 SPDT (Form C); rated 3 A @
30 VDC and 125/250 VAC resistive
load; 1/14 HP (≈ 50 W) @ 125/250
VAC for inductive loads
Noise
Suppression
Noise suppression is recommended
for each relay contact switching inductive loads; see page 12 for details.
Initialization
After power failure, relays will initialize to default state before reconnecting to wireless units.
Signal Loss
If mapped to digital input channel,
the relay energizes.
Specifications
Except where noted all specifications apply to operation at +25°C.
PDW90 Base Station Specifications
General
Dual 4-20 mA Outputs Module
Dual Analog Inputs Module
Digital Input / Output Module
Dual Relays Module
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PDW90 Point to Multi-Point Wireless Instruction Manual
Display
32-character dual-line alphanumeric
dot matrix LCD display with backlight
(4.68mm x 2.21mm characters)
Display
Orientation
Display may be mounted at 180°
from default orientation
Network ID
Field selectable: 0 - 99
Programming
Methods
Four programming buttons (behind
glass) or PC with PDW Manager software.
Recalibration
All inputs and outputs are calibrated
at the factory. Recalibration is recommended at least every 12 months.
Process/
Digital I/O
Display
Press the display button once to dis-
play the present analog input and
output. Press the display button
again to display digital I/O states.
Password
A programmable password restricts
modification of programmed settings.
Power
12-28 VDC, 5 W max
Non-Volatile
Memory
All programmed settings are stored
in non-volatile memory for a minimum of ten years if power is lost.
Isolation
500 V
Environmental
Operating temp. range: -40 to 65°C
(display inoperable < -20 °C)
Storage temp. range: -40 to 85°C
Relative humidity: 0 to 90% non-condensing
Connections
Removable screw terminal blocks accept 16 to 30 AWG wire.
Enclosure
Cast aluminum with glass window,
0.3% max copper content, corrosion
resistant powder coating, color: blue.
IP68. Two ½" NPT threaded conduit
openings. One ½" NPT stainless
steel conduit plug with 10 mm hex
key fitting installed.
Mounting
May be mounted directly to conduit.
Two mounting holes for 1.5" pipe or
wall mounting. See Mounting Dimensions on page 40 for mounting space
requirements.
Signal Connector Tightening Torque
2.2 lb-in (0.25 Nm)
Shipping
Dimensions
17" x 14" x 9" (43.2 cm x 35.6 cm x
22.9 cm) (L x W X H)
Shipping
Weight
5 lbs. (2.27 kg)
Warranty
3 years parts & labor
Inputs
Field selectable: 4-20 mA, 0-10 V,
0-5 V, 1-5 V
Accuracy
±0.03% of calibrated span ±1 count
Temperature
Drift
0.005% of calibrated span/C max
from 0 to 65C ambient,
0.01% of calibrated span/C max
from -40 to 0C ambient
Input
Impedance
Voltage ranges: greater than
110 k
Current ranges: less than 220
Signal Loss
Inputs will remain off (open circuit)
until wireless units are reconnected.
HART
Transparency
Analog input will not interfere with
existing HART communications on
the wired 4-20 mA signal
Output Source
Analog input from connected wireless unit
Calibration
Factory calibrated:
4.000 to 20.000 = 4-20 mA output
Accuracy
± 0.1% of span ± 0.004 mA
Loop Power
Supply
Internally powered; no external supply needed
Temperature
Drift
0.4 µA/C max from 0 to 65C ambient, 0.8 µA/C max from -40 to 0C
ambient
Output Loop
Resistance
Power supply
Minimum
Maximum
24 VDC
10
900
Signal Loss
After approximately 25 seconds of
trying to reconnect, mA output will
become 3.2 mA
Channels
Four (4) digital connections, independently field selectable as either
inputs or outputs
DI Logic High
3 to 5 VDC
DI Logic Low
0 to 1.1 VDC
DI Contact
Dry contact to ground can be used
to activate the input
DO Logic High
3 to 5 VDC
DO Logic Low
0 to 0.4 VDC
Source
Current
10 mA maximum output current
Sink Current
1.5 mA minimum input current
Signal Loss
Digital output goes to logic high
PDW90 Field Unit Specifications
General
Analog Input
Isolated 4-20 mA Transmitter Output
Digital Input / Output Terminal
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PDW90 Point to Multi-Point Wireless Instruction Manual
Frequency
900 MHz
Range
500 ft (152.4 m) indoor, 1 mi
(1.61 km) outdoor (line-of-sight)
Encryption
AES 128-bit encryption available using PDW Manager software
Interference
Reduction
Frequency Hopping Spread
Spectrum (FHSS)
Power Output
24 dBm (250 mW)
Sensitivity
-101 dBm
System
Requirements
Microsoft® Windows® XP/Vista/7/8/10
Communications
USB 2.0 (Standard USB A to Micro
USB B)
Configuration
Configure devices one at a time
Compatibility
EIA-485
Connectors
Removable screw terminal connector
Max Distance
3,937' (1,200 m) max
Baud Rate
1200 – 57,600 bps
Data
8 bit (1 start bit, 1 or 2 stop bits)
Parity
Even, Odd, or None with 2 stop bits
Modbus
Timeout
0.5, 1, 2, 3, 4, 5 seconds;
user selectable
Caution: Read complete instructions
prior to installation and operation of the
device.
Warning: Read all product labels
completely and follow all instructions
and requirements listed on the labels
for installation or service.
Warning!
Installation and service should be performed only by trained service personnel. Service requiring replacement of internal components must be performed at the factory.
!
General Specifications
Wireless Radio
Safety Information
PDW Manager Software
RS-485 Modbus® RTU Serial Comms
Installation
Base Station: All wiring connectors are accessed by opening the enclosure. To access electrical
connectors, unclasp enclosure and open.
Field Units: All pushbuttons and wiring connectors are accessed by opening the enclosure. To
access electrical connectors, remove the 2 captive screws and remove the display assembly.
Unpacking
Remove both units from box. Inspect the packaging and contents for damage. Report damages, if
any, to the carrier. If any part is missing or the units malfunction, please contact your supplier or
the factory for assistance.
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PDW90 Point to Multi-Point Wireless Instruction Manual
Pre-Installed Conduit Plug
The PDW90 field units are supplied with one pre-installed optional conduit plug for installations that do
not require the use of both conduit entries. The conduit plug includes an internal hexagonal socket recess
for removal.
Base Station Conduit Holes
No predrilled conduit holes are provided in the base station enclosure from the factory. Drilling of conduit
holes is left to the end user so that they may be placed wherever appropriate for the application. Be sure
to use suitable hardware (cable glands, plugs, etc.) in order to maintain NEMA 4X/IP66 rating on the enclosure.
Mounting Instructions
The base station can be wall mounted using the included mounting hardware. Securely screw the four
brackets into the threaded holes provided at the rear of the enclosure with the bend facing toward the wall
in order to provide the necessary clearance. Then, secure exposed mounting holes to wall.
The field units have two mounting holes that may be used for a 1.5” pipe mounting or wall mounting. Alternatively, the unit may be supported by the conduit using the conduit holes provided. The antenna is
threaded into one of the three conduit holes and may be moved as appropriate for the installation.
It can also be mounted by using the PDA6963 mounting bracket in order to orient the device antenna
away from the pipe. Refer to Mounting Dimensions on page 40 for details on space requirements.
Cover Jam Screw
The cover jam screw should be properly installed once the field units have been wired and tested in a
safe environment. The cover jam screw is intended to prevent the removal of the units’ cover while in operation without the use of tools. Using a M2 hex wrench, turn the screw clockwise until the screw contacts
the unit. Turn the screw an additional 1/4 to 1/2 turn to secure the cover.
Caution: Excess torque may damage the threads and/or wrench.
FCC Notice
Contains FCC ID: MCQ-XB900HP
The enclosed device complies with Part 15 of the FCC Rules. Operation is subject to the following two
conditions: (i.) this device may not cause harmful interference and (ii.) this device must accept any interference received, including interference that may cause undesired operation.
IMPORTANT
The RF module has been certified for remote and base radio applications. If the module will be used for
portable applications, the device must undergo SAR testing. This equipment has been tested and found
to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits
are designed to provide reasonable protection against harmful interference in a residential installation.
This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in
accordance with the instructions, may cause harmful interference to radio communications. However,
there is no guarantee that interference will not occur in a particular installation.
If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by
one or more of the following measures: Re-orient or relocate the receiving antenna, Increase the separation between the equipment and receiver. Connect equipment and receiver to outlets on different circuits,
or consult the dealer or an experienced radio/TV technician for help.
Canada (IC) Notice
Contains Model: XB900HP, IC: 1846A-XB900HP
Integrator is responsible for its product to comply with IC ICES-003 & FCC Part 15, Sub. B - Unintentional
Radiators. ICES-003 is the same as FCC Part 15 Sub. B and Industry Canada accepts FCC test report or
CISPR 22 test report for compliance with ICES-003.
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PDW90 Point to Multi-Point Wireless Instruction Manual
Warning!
• The PDW90 base station must be powered down completely
prior to installing or removing any modules. Failure to do so
could result in damage to the electronics.
• Static electricity can damage sensitive components.
• Observe safe handling precautions for static-sensitive com-
ponents.
• Use proper grounding procedures/codes.
I+ G I+ G
1 2
mA OUTPUT
+5 1 2 3 4 GND
DIGITAL I/O
V+ mA G
1 2
ANALOG INPUT
V+ mA GNO NC C
1 2
RELAY
NO NC C
NO NC C
1 2
RELAY
NO NC CV+ mA G
1 2
ANALOG INPUT
V+ mA G
+5 1 2 3 4 GND
DIGITAL I/O
I+ G I+ G
1 2
mA OUTPUT
NO NC C
1 2
RELAY
NO NC C
NO NC C
1 2
RELAY
NO NC C
V+ mA G
1 2
ANALOG INPUT
V+ mA G
V+ mA G
1 2
ANALOG INPUT
V+ mA G
I+ G I+ G
1 2
mA OUTPUT
+5 1 2 3 4 GND
DIGITAL I/O
+5 1 2 3 4 GND
DIGITAL I/O
I+ G I+ G
1 2
mA OUTPUT
MOD ADDR 016 RT
RSSI 10
Base Station Connections
To access the connectors for the base station, open the enclosure door. Signal connections are made to
removable screw terminal connectors.
Figure 1 below shows the locations of screw terminal blocks on a fully loaded PDW90 base station electronics board. This diagram shows the board loaded with four relay modules, four digital I/O modules, four
analog input modules, and four analog output modules. Actual module locations may differ.
Figure 1. Fully Loaded Base Station Main Board
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PDW90 Point to Multi-Point Wireless Instruction Manual
Figure 2. Base Station
Power Connection
Figure 3. Base Station
Analog Input Connection
Figure 4. Base Station
Digital I/O Connection
Figure 5. Base Station An-
alog Output Connection
V+ mA G
1 2
ANALOG INPUT
V+ mA G
Current Signal
Source
Voltage Signal
Source
I+ G I+ G
1 2
mA OUTPUT
4-20 mA
Input Device
+5 1 2 3 4 GND
DIGITAL I/O
Power Connector
Power connections are made to a two-terminal connector labeled
POWER in Figure 1.
Make sure that the power supply can provide 24 VDC to the wireless base station.
Analog Input Connector
The analog input module can accept either 4-20 mA, 0-10 V, 0-5 V,
or 1-5 V. The appropriate input type must be independently programmed for each input channel.
The analog input will not interfere with any existing HART signal on
a 4-20 mA current loop. However, the HART signal will not be
transmitted wirelessly.
Analog Output Connector
The mA output module can be programmed to output a 4-20mA analog signal associated with a remote field unit’s analog input or Modbus register.
The signal can be transmitted to any device scaled to read a 4-20
mA signal as shown at right. The analog output is internally powered;
no external power supply is required.
Digital I/O Connector
The digital input module includes four independently programmable
I/O channels. All digital connections are referenced to ground; digital
input connections have an internal pull-up resistor. Each connection
may be set as either an input or an output.
In the diagram to the right, D3 is a digital input and D4 is a digital
output.
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PDW90 Point to Multi-Point Wireless Instruction Manual
C
R
C
R
C
NC
NO
C
NC
NO
Figure 6. Base Station
Relays Connection
NO NC C
1 2
RELAY
NO NC C
Use a diode with a reverse
breakdown voltage two to
three times the circuit voltage
and forward current at least as
large as the load current.
Relays Connector
The relays module includes two mechanical relays. Relay connections
are made to the six-terminal connector shown to the right.
Each relay’s C terminal is common only to the normally open (NO) and
normally closed (NC) contacts of the corresponding relay.
If a field unit’s digital input channel is mapped to a relay module channel on the base station, the effect may be opposite of what is expected.
An open connection at the digital input will result in the relay going into
an active state. This is because the digital input channels are active
low. This can be changed by swapping the NO and NC connections to
the relay channel.
Switching Inductive Loads
The use of suppressors (snubbers) is strongly recommended when switching inductive loads to prevent
disrupting the microprocessor’s operation. The suppressors also prolong the life of the relay contacts.
Suppression can be obtained with resistor-capacitor (RC) networks assembled by the user or purchased
as complete assemblies. Refer to the following circuits for RC network assembly and installation:
Figure 7. AC and DC Loads Protection
Choose R and C as follows:
R: 0.5 to 1 Ω for each volt across the contacts
C: 0.5 to 1 µF for each amp through closed contacts
Notes:
1. Use capacitors rated for 250 VAC.
2. RC networks may affect load release time of solenoid loads. Check to confirm proper operation.
3. Install the RC network at the device's relay screw terminals. An RC network may also be installed
across the load. Experiment for best results.
Figure 8. Low Voltage DC Loads Protection
RC Networks Available from Precision Digital
RC networks are available from Precision Digital and should be applied to each relay contact switching an
inductive load. Part number: PDX6901.
Note: Relays are de-rated to 1/14th HP (50 watts) with an inductive load.
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PDW90 Point to Multi-Point Wireless Instruction Manual
Figure 9. Base Station Three- and Five-Wire RS-485 Modbus Connection
Figure 10. Base Station Multiple Device RS-485 Modbus Connection
Shield
Twisted-Pair
Shield
Twisted-Pair
(PDW90 Base Station)
(PDW90 Base Station)
R
R
R
R
Shield
Twisted-Pair
(PDW90 Base Station)
R
R
Modbus RTU Serial Communications
The PDW90 base station acts as a simple pass-through for Modbus communications. As such, multiple
Modbus enabled devices may transmit and receive wirelessly using the base station.
Notes:
1. Termination resistors are optional and values depend on the cable length and characteristic impedance. Consult the cable manufacturer for recommendations.
2. Use shielded cable, twisted-pairs plus ground. Connect ground shield only at one location.
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PDW90 Point to Multi-Point Wireless Instruction Manual
• Static electricity can damage sensitive components.
• Observe safe handling precautions for static-sensitive com-
ponents.
• Use proper grounding procedures/codes.
Warning!
• Observe all safety regulations. Electrical wiring should be per-
formed in accordance with all agency requirements and applicable national, state, and local codes to prevent damage to
the device and ensure personnel safety.
Wireless
Module
Field Unit Connections
To access the connectors, remove the enclosure cover and unscrew the two captive stainless steel
screws. Remove the electronics assembly from the enclosure. Signal connections are made to removable
terminal blocks on the back of the electronics assembly. Grounding connections are made to the two
ground screws provided on the base – one internal and one external.
Figure 11 below shows the locations of screw terminal blocks on the rear of the wireless field unit assembly.
Figure 11. Field Unit Device Assembly, Rear View
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PDW90 Point to Multi-Point Wireless Instruction Manual
Wireless
Module
24 VDC
Power Supply
4-20 mA
2-wire
Transmitter
Wireless
Module
Figure 12. Field Unit Power
Connection
Power Connector
Power connections are made to a two-terminal connector
labeled POWER in Figure 11. The PDW30 is reverse polarity protected; it will not be damaged if wired backward.
Make sure that the power supply can provide between 12
and 24 VDC to the wireless device.
Power PDW90 Field Unit and 2-Wire Transmitter from Same Power Supply
The PDW30 wireless units may be powered from the same power supply that powers the 2-wire (looppowered) transmitter, assuming that the supply provides enough voltage for both units. To power both devices from the same supply, wire the devices to the supply as shown below.
Figure 13. PDW90 Field Unit and 2-Wire Transmitter Powered from Same Supply
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PDW90 Point to Multi-Point Wireless Instruction Manual
Figure 14. Field Unit Analog
Input Connection
Figure 15. Field Unit
4-20 mA Output Connection
Figure 16. Field Unit Digital I/O
Connection
Voltage or
Current Signal
Source
4-20 mA Input
Display, Chart
Recorder, Etc.
Signal Connector
The analog input may be either 4-20 mA, 0-10 V, 0-5 V, or 1-5 V.
The appropriate input type must be programmed for each unit.
Once the appropriate input type has been programmed, wire the
analog signal source to the device as shown in the diagram at
right.
The analog input will not interfere with any existing HART signal
on a 4-20 mA current loop. However, the HART signal will not be
transmitted wirelessly.
4-20 mA Output Connector
The 4-20 mA output corresponds with the analog input signal on
the paired wireless device. The analog output signal is always
4-20 mA, regardless of the input type on the other wireless module.
For instance, if the analog input type on the first device was
0-10 V and the input value was 5 V, the second device would
output 12 mA.
Connect the mA OUT terminals to a device scaled to read a
4-20 mA signal.
The analog output is internally powered; no external power
supply is required.
Digital I/O Connector
All digital connections are referenced to ground. The base
station I/O settings determine the I/O settings of the field units
(e.g. if D1 of the base station is an input then it can only be
mapped to a digital output of a field unit).
Note: Each connection may be set independently in the de-
vice settings as either an input or an output. In the diagram to the right, D4 & D3 are digital inputs and D2 is a
digital output.
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PDW90 Point to Multi-Point Wireless Instruction Manual
Figure 17. Field Unit Three- and Five-Wire RS-485 Modbus Connection
Figure 18. Field Unit Multiple Device RS-485 Modbus Connection
Shield
Twisted-Pair
Shield
Twisted-Pair
(PDW90 Field Unit)
(PDW90 Field Unit)
R
R
R
R
Shield
Twisted-Pair
(PDW90 Field Uni t)
R
R
Modbus RTU Serial Communications
The PDW90 field units act as simple pass-throughs for Modbus communications. As such, multiple Modbus enabled devices may be transmitted wirelessly using a wireless field unit.
Note: Modbus Master must be connected to Base Station.
Notes:
1. Termination resistors are optional and values depend on the cable length and characteristic impedance. Consult the cable manufacturer for recommendations.
2. Use shielded cable, twisted-pairs plus ground. Connect ground shield only at one location.
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PDW90 Point to Multi-Point Wireless Instruction Manual
The base station and field units are factory calibrated
prior to shipment to read analog inputs in milliamps or
volts depending on the input selection. The calibration
equipment is certified to NIST standards.
I+ G I+ G
1 2
mA OUTPUT
+5 1 2 3 4 GND
DIGITAL I/O
V+mA G
1 2
ANALOG INPUT
V+mA GNONC C
1 2
RELAY
NONC C
NONC C
1 2
RELAY
NONC CV+mA G
1 2
ANALOG INPUT
V+mA G +5 1 2 3 4GND
DIGITAL I/O
I+ GI+ G
1 2
mA OUTPUT
NONC C
1 2
RELAY
NONC C
NONC C
1 2
RELAY
NONC C
V+mA G
1 2
ANALOG INPUT
V+mA G
V+mA G
1 2
ANALOG INPUT
V+mA G
I+ G I+ G
1 2
mA OUTPUT
+5 1 2 3 4GND
DIGITAL I/O
+5 1 2 3 4GND
DIGITAL I/O
I+ GI+ G
1 2
mA OUTPUT
MOD ADDR 016 RT
RSSI 10
24 VDC
Setup and Programming
Overview
There are no jumpers to set for wireless device input selection. Setup and programming of the base sta-
tion is done using PDW Manager programming software. Setup of the wireless field units is done either
wirelessly through the base station using PDW Manager programming software or via direct USB programming with PDW Manager. The field units’ programming buttons located underneath the enclosure
cover are for very limited programming options, such as network ID and Modbus address.
Programming the Base Station
The base station is programmed using PDW Manager programming software. PDW Manager can be
found on the included CD or downloaded from .
Once the software is running, power the unit using a 24 VDC power supply and connect the base sta-
tion’s micro USB port to a PC using the provided USB cable.
Note: Base station must be powered externally prior to programming via USB.
The PC will automatically install the appropriate device drivers. Once this has completed, the device will
appear in the Device list at the top of the PDW Manager window. Click Connect.
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PDW90 Point to Multi-Point Wireless Instruction Manual
Connecting Field Units to Base Station
The first thing that must be done when programming the PDW90 is connect all of the wireless field units
to the base station. Configuration of the base station is accomplished using the PDW Manager software,
while the individual field units may be programmed using the device buttons which are accessed by unscrewing the enclosure cover. See Programming the Field Units on page 30 for details on field unit programming.
After the base station has been connected to PDW Manager (see page 18), field units can be connected
to it from the Remote Unit Configuration tab. Select each unit from the Unassociated Remote Units list
and click the Add to Client List button.
Field units must have the same network ID and encryption settings as the base station in order to connect. Each field unit must be programmed to have its own unique Modbus address.
Note: All units must be powered on in order to connect them to the base station.
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Base Station Configuration
The Base Station Configuration tab is where the base station name, network ID, password, and Modbus
settings may be modified. Once you are finished modifying any of these settings, click the Save Settings
button to write your changes to the device.
If you have made changes that have not yet been saved and would like to load the saved settings from
the base station, click the Read Settings button.
Note: Do not click Save Settings button after changing the password. Click Disconnect to confirm the
password has been changed.
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PDW90 Point to Multi-Point Wireless Instruction Manual
Input / Output Module Configuration
The Base Station IO Configuration tab is where individual I/O modules connected to the base station may
be programmed. Click on one of the installed modules in the IO Modules list to the left of the screen in
order to begin programming that module.
Analog Inputs Module
Each Analog Inputs module has two input channels. Each channel may be independently programmed to
accept either a 4-20 mA, 0-10 V, 0-5 V, or 1-5 V analog input. These channels may also be mapped to
remote analog outputs or Modbus registers. Once you have modified the module’s settings, click the
Save Module Configuration button to save these settings to the base station.
If you have made changes to the module that have not been saved and would like to load the saved set-
tings from the base station, click the Read Settings from Hardware button. If you would like to reset the
selected module to its default settings, click the Load Default Settings button.
The Monitoring area at the bottom may be used to view the current analog input reading or manually test
analog input operation.
Note: For information about Modbus Access, please see Modbus Register Address vs Modbus Register
Number on page 28.
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PDW90 Point to Multi-Point Wireless Instruction Manual
4-20 mA Analog Outputs Module
Each Analog Outputs module has two 4-20 mA output channels. Each channel may be independently
programmed and mapped to remote analog inputs or Modbus registers. Once you have modified the
module’s settings, click the Save Module Configuration button to save these settings to the base station.
If you have made changes to the module that have not been saved and would like to load the saved set-
tings from the base station, click the Read Settings from Hardware button. If you would like to reset the
selected module to its default settings, click the Load Default Settings button.
The Monitoring area at the bottom may be used to view the current analog input reading or manually test
analog input operation.
Note: For information about Modbus Access, please see Modbus Register Address vs Modbus Register
Number on page 28.
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Digital I/O Module
Each Digital I/O module has four I/O channels. Each channel may be independently programmed as ei-
ther an input or an output. These channels may also be mapped to a remote digital I/O or Modbus regis-
ter. Once you have modified the module’s settings, click the Save Module Configuration button to save
these settings to the base station.
If you have made changes to the module that have not been saved and would like to load the saved set-
tings from the base station, click the Read Settings from Hardware button. If you would like to reset the
selected module to its default settings, click the Load Default Settings button.
The Monitoring area at the bottom may be used to view the current digital I/O state or manually test digital
I/O operation.
Note: For information about Modbus Access, please see Modbus Register Address vs Modbus Register
Number on page 28.
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PDW90 Point to Multi-Point Wireless Instruction Manual
Relays Module
Each Relays module has two channels. Each channel may be independently programmed and mapped to
remote digital I/O or Modbus registers. Once you have modified the module’s settings, click the Save
Module Configuration button to save these settings to the base station.
If you have made changes to the module that have not been saved and would like to load the saved set-
tings from the base station, click the Read Settings from Hardware button. If you would like to reset the
selected module to its default settings, click the Load Default Settings button.
The Monitoring area at the bottom may be used to view the current relay state or manually test relay operation.
Note: For information about Modbus Access, please see Modbus Register Address vs Modbus Register
Number on page 28.
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PDW90 Point to Multi-Point Wireless Instruction Manual
Remote Unit Configuration
The Remote Unit Configuration tab is where connected field units may be programmed to communicate
with the base station. Select a connected field unit from the Connected Clients list in order to begin pro-
gramming that unit.
A field unit’s human readable name may be changed by clicking the Change Name button. Be sure to
give each field unit a descriptive name, such as the location of the unit in your facility or the devices connected to it, in order to make future programming easier.
Analog Input
Each field unit’s analog input may be programmed to accept a 4-20 mA, 0-10 V, 0-5 V, or 1-5 V signal.
Once you have modified the settings, click the Save Configuration button to save these settings to the
field unit.
The IO Mapping section will show to what (if any) device the analog input has been mapped. The Moni-
toring section at the bottom may be used to view the current analog input reading or manually test analog
input operation.
Note: For information about Modbus Access, please see Modbus Register Address vs Modbus Register
Number on page 28.
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PDW90 Point to Multi-Point Wireless Instruction Manual
4-20 mA Analog Output
The 4/20mA Output tab is used to program the selected field unit’s analog output. Once you have modified the settings, click the Save Configuration button to save these settings to the field unit.
The IO Mapping section will show to what (if any) device the analog input has been mapped. The Moni-
toring section at the bottom may be used to view the current analog output reading or manually test ana-
log output operation.
Note: For information about Modbus Access, please see Modbus Register Address vs Modbus Register
Number on page 28.
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PDW90 Point to Multi-Point Wireless Instruction Manual
Digital I/O
Each field unit has four digital I/O channels. Each channel may be independently programmed as either
an input or an output. Once you have modified the settings, click the Save Configuration button to save
these settings to the field unit.
The IO Mapping section will show to what (if any) device the digital I/O has been mapped. The Monitoring
section at the bottom may be used to view the current digital I/O state or manually test digital I/O operation.
Note: For information about Modbus Access, please see Modbus Register Address vs Modbus Register
Number on page 28.
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PDW90 Point to Multi-Point Wireless Instruction Manual
Register Address
Register Number
0
40,001
256
40,257
2048
42,049
3328
43,329
Modbus RTU
Each field unit is capable of transmitting Modbus® RTU serial communications. Enter the Modbus network
settings on the Modbus tab in order to communicate with the Modbus network. The Modbus address must
be unique in order to ensure field unit/base station connectivity.
Once you have modified the settings, click the Save Configuration button to save these settings to the
field unit.
Modbus Register Address vs Modbus Register Number
In order to address the wireless units’ Modbus registers, depending on the type of Modbus device, it may
be necessary to provide either the register address or the register number. PDW Manager shows the reg-
ister address of input and output devices in the section labeled Modbus Access, as shown below:
In this example, if the Modbus device requires a register ad-
dress, use the value 2112 to access the long int value.
If the Modbus device requires a register number, add 40,001
to the register address (in this case: 42,113) to access the
long int value. The table at right shows additional register
address to register number conversions
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Advanced Configuration
Device communication can be secured by enabling 128-bit AES encryption. A channel mask may also be
set for interference immunity. The encryption key and channel mask may be entered on the Advanced
tab. Once you have entered the encryption information, click Save Settings. If you have made changes
that have not been saved and would like to load the saved settings from the base station, click the Read
Settings button.
The wireless field units must share identical encryption keys in order to communicate with the base station, so be sure to enter the same information for all of the field units. See Programming the Field Units
with PDW Manager on page 34 for information on programming the field units.
If you would like to reset the base station to factory default settings, click the Reset all system parameters
to Factory Defaults button. All field units may be cleared from the client database by clicking the Clear Cli-
ent Database button.
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PDW90 Point to Multi-Point Wireless Instruction Manual
Button
Description
Display
Status
Menu
Enter or exit the device menu
RSSI
Received Signal Strength Indicator
Indicates the wireless signal strength
between wireless devices on a scale of
1 to 10.
Enter
Select a menu item
of option
RT
Receiving/Transmitting
Flashes while the devices are sending
and/or receiving data
Previous
Cycle backward
through menus or increment digit
001-247
Modbus Address
Indicates the Modbus address of the
field unit. This is the unique identifier
that the base station uses to communicate with the field unit.
Next
Cycle forward
through menus or
select next digit
LINK OK /
CONNECTING
Link Status
Displays whether or not the units are
currently connected
Display
Show current inputs
and outputs
AIN /
AOUT
Analog Input/Analog Output
Labels for the current analog input and
analog output
(Shown when the display button is pressed)
DI /
DO
Digital Input/Digital Output
Labels for each of the current digital inputs or outputs
(Shown when the display button is pressed twice)
Programming the Field Units
The field units can be programmed using the buttons
located behind the enclosure cover or using PDW
Manager. Because of the limited number of options
available for the field units, it is easier in most cases
to use the programming buttons.
When programming the field units using the program-
ming buttons, use the menu button to enter or exit
programming mode, the next button to cycle forward
through menu options, the previous button to cycle
backward through menu options, and the enter button
to select the menu item or option you want. During
number entry, use the next button to select a digit and
the previous button to increment the selected digit.
Press the display button while in run mode to show
the current analog and digital inputs and outputs.
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Display
Action/Setting Description
NETWORK ID
Displays the point-to-multipoint wireless network ID (press enter to change)
01-99
The network ID can be any number between 01 and 99
MODBUS ADDRESS
The unique ID used by the base station to differentiate between field units
001-247
The Modbus address can be any number between 001 and 247
PASSWORD SETUP
Change the device password
PASSWORD (0=OFF)
Displays the current device password (press enter to change)
0000-9999
Password can be any number from 0001 to 9999 (0000 disables)
BACK TO SETUP MENU
Return to the setup menu
RESTORE DEFAULTS
Restore the unit to factory default settings
LOAD DEFAULTS?
Factory restoration confirmation prompt
NO
No, do not restore the device to factory defaults (press enter)
YES
Yes. restore the device to factory defaults (press enter)
LINK OK
016 RSSI 10 RT
NOW: 01
NETWORK ID
NOW: 016
MODBUS ADDRESS
SETUP
PASSWORD
DEFAULTS
RESTORE
Run Mode
SET: 01
NETWORK ID
increments selected dig it.
selects next digit to the right.
NOW: 0000
PASSWORD (0=OFF)
SETUP MENU
BACK TO
SET: 0123
PASSWORD (0=OFF)
increments selected dig it.
selects next digit to the right.
0000 disables the password.
NO
LOAD DEFAULTS?
YES
LOAD DEFAULTS?
Unit will load default
settings and reboots.
SET: 016
MODBUS ADDRESS
increments selected dig it.
selects next digit to the right.
Field Unit Setup Menu
The setup menu consists of analog, digital (discrete), and Modbus® input/output settings, network ID,
password, and factory defaults restoration.
Shown below is a list of all display messaged in each field unit’s setup menu. This list is in order of ap-
pearance when pressing the next button. An indented line indicates a sub-menu or item.
Display Functions & Messages
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NOW: 01
NETWORK ID
SET: 01
NETWORK ID
SET: 11
NETWORK ID
SET: 11
NETWORK ID
SET: 12
NETWORK ID
Access
edit mode
Increment
selected digit
Select the
next digit
Increment
selected digit
Accept
new value
SETUP
PASSWORD
NOW: 0000
PASSWORD (0=OFF)
SETUP MENU
BACK TO
SET: 0123
PASSWORD (0=OFF)
increments selected digit.
selects next digit to the right.
0000 disables the password.
Entering Numeric Values
Numeric values are set using the next and previous buttons. Press next to select next digit and previous
to increment digit value.
The selected digit will flash.
Press the enter button, at any time, to accept the value or the menu button to exit without saving.
Network ID
The Network ID is the unique network identifier that allows all field units to connect to the base station.
The ID can be set to any number between 01 and 99. All field units must be set to the same Network ID
as the base station in order to communicate. Multiple field unit/base station pairs may be installed within
range of each other by setting unique Network IDs.
Modbus Address
The Modbus Address is used to identify each individual field unit connected to the point-to-multipoint wireless network. The Modbus address can be any number between 001 and 247. This address must be
unique among all field units on the same Network ID. This address must also be unique among all other
Modbus devices connected to the network.
Password Setup
The wireless field units may be protected with a four-digit numeric password in order to prevent unauthorized tampering. When a password has been set, you will be prompted to enter that password in order to
access the device menu.
To disable password protection, simply set 0000 as the password.
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Did you forget the password?
The password may be disabled by entering a master
password. If you are authorized to make changes, enter
the master password 7300 to unlock the device.
LINK OK
PRI RSSI 10 RT
0000
ENTER PASSWORD
Run Mode
ACCESS GRANTED
increments selected digit.
selects next digit to the rig ht.
TRY AGAIN
ENTER PASSWORD
1 S ec
If Incorrect
DEFAULTS
RESTORE
NO
LOAD DEFAULTS?
YES
LOAD DEFAULTS?
Unit will load default
settings and reboot.
LINK OK
PRI RSSI 10 RT
AOUT: 20.00 mA
AIN: 20.00 mA
DO3:OFF DI4:OFF
DI1:ON DO2:ON
Making Changes to a Password Protected Field Unit
Once a password has been set on the device, you will be required to enter that password before being
allowed to access the device menu.
Note: Setting a password will require you to enter the password to access the device settings via the PC
software as well.
Restore Defaults
If a mistake has been made while programming the field unit and it is unclear where the error occurred,
the best option may be to perform a factory reset of the device and begin again.
Display Signal I/O and Digital I/O Status
Pressing either the previous or display buttons while the device is in run mode will cycle through the display modes. These modes are, in order, link status, analog I/O, and digital I/O.
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PDW90 Point to Multi-Point Wireless Instruction Manual
PRI RSSI 10 RT
LINK OK
12/24 VDC
Programming the Field Units with PDW Manager
The field units may also be programmed using the PC based PDW Manager. Field units connect to a PC
via the micro USB connection on their face, underneath the enclosure cover. Use of PDW Manager is re-
quired for programming advanced settings such as wireless encryption and analog signal calibration.
PDW Manager can be found on the included CD or downloaded from .
Once the software is running, power the unit using a 24 VDC power supply and connect the device to the
PC using the provided USB cable.
Note: Units must be powered externally prior to programming via USB.
The PC will automatically install the appropriate device drivers. Once this has completed, the device will
appear in the Device list at the top of the PDW Manager window. Click Connect.
The image below shows the available options on the Configuration tab while the field unit is connected.
The network ID, Modbus settings, and password may be configured from this tab.
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The field unit’s analog inputs and outputs can be calibrated using the Calibration tabs. The IO Testing tab
allows you to perform diagnostics and testing on the units.
Note: The field units are factory calibrated prior to shipment to read analog inputs in milliamps and volts
depending on the input selection. The calibration equipment is certified to NIST standards.
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Device communication can be secured by enabling 128-bit AES encryption. A channel mask may also be
set for interference immunity. The encryption key and channel mask may be entered on the Advanced
tab. Once you have entered the encryption information, click Save Settings. If you have made changes
that have not been saved and would like to load the saved settings from the base station, click the Read
Settings button.
The base station and field units must share identical encryption keys in order to communicate, so be sure
to enter the same information for the base station and all of the field units. See Programming the Base
Station on page 18 for information on programming the base station.
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Symptom
Possible Cause
Corrective Action
Devices will not connect.
Devices have
mismatched network IDs.
• Devices will not connect if they do not have
the same network ID. Verify that both devices
share the same network ID.
Devices are out of
range or there are
obstacles blocking the wireless
path.
• Bring devices closer together to see if it alleviates the issue. Units will display LINK OK if
they are connected. If devices connect, consider placing closer together permanently, removing any obstacles, or mounting higher.
• Ensure antennas are on parallel plane. Devices that are vertically separated will not
have as strong of a connection.
• If communicating over distance of miles, consider installing PDW30-RNA repeaters or a
high gain directional antenna.
Multiple wireless
devices in the
area with the
same ID.
• If there are multiple PDW90 wireless systems
or PDW30 wireless signal bridges, verify that
each system has its own unique network ID.
All units intended to communicate with each
other should share a unique network ID.
Encryption keys
do not match
• If using encryption, ensure that the encryption keys on both devices match exactly.
Intermittent signal issues.
Signal is too poor.
• Check RSSI. If signal is too low, consider
moving devices closer together, clearing obstacles in wireless path, or mounting devices
higher.
• Ensure devices are on parallel plane.
• If communicating over distance of miles, consider installing high gain directional antenna.
Temporary obstacles are blocking
the wireless path.
• Temporary obstacles, such as large trucks or
heavy equipment, can interfere with wireless
path. Consider moving wireless units higher
or to an area with less traffic.
?
Troubleshooting
If you are experiencing difficulties with your wireless installation, consult the troubleshooting steps listed
below. For best results, identify the symptoms of the problem you are having and attempt all of the corrective actions listed for the particular symptom.
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Symptom
Possible Cause
Corrective Action
Destination device reads out
of range, zero, or incorrect.
Wireless device
has mismatched
input type.
• Make sure that input type on the device is
correct for the analog input being used. Options are 4-20 mA, 0-10 V, 0-5 V, or 1-5 V.
Destination device is not scaled
properly.
• Destination device must accept 4-20 mA signal and be scaled to properly display the signal. Check the manufacturer’s instruction
manual for how to do this.
Signal connections are improperly wired.
• Double check to make sure all of the signal
connections are properly wired to all devices.
Check wiring diagrams starting on page 10.
While trying to connect field
units using PDW Manager,
none appear in the Unassoci-
ated Remote Units list.
Devices have
mismatched network IDs.
• Devices will not connect if they do not have
the same network ID. Verify that all devices
share the same network ID.
Multiple field units
have same Modbus address.
• If multiple field units share the same Modbus
address it will cause a conflict. Verify that all
field units have unique Modbus addresses.
Devices have differing encryption
settings.
• Encryption settings must be the same on all
devices. Use PDW Manager to verify the encryption settings on all devices.
Device will not power on.
Not enough voltage is coming
from the power
supply.
• Devices require at least 12 VDC each in order to power on. Check that the power supply
is providing enough voltage to the device and
that there are not too many devices drawing
from the supply.
Devices are improperly wired.
• Check to make sure all power connections
are properly wired to all devices. Check wiring diagrams starting on page 10.
999999
Feet
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PDW90 Point to Multi-Point Wireless Instruction Manual
Symptom
Possible Cause
Corrective Action
Device will not connect to PC
via USB
Wireless device is
not powered.
• The base station must be powered by a
24 VDC power supply in order for the PC to
recognize it. Field units must be powered by
a 12-28 VDC power supply. Power the wireless device and try again.
Software version
is outdated.
• Check that you are running the latest software version. The latest version of PDW
Manager can be downloaded at
.
USB cable is
faulty
• Try connecting the wireless device using a
known good micro USB cable. Any standard
USB A to micro USB B cable, such as the
one used to charge a smartphone, should
work.
Other Issue
?
If you are experiencing a symptom not listed here, or the suggested
troubleshooting steps do not alleviate your problem, please attempt
to restore the wireless devices to system defaults by following the
instructions on page 29 or page 33. If you require technical support,
please contact us at:
I+ G I+ G
1 2
mA OUTPUT
+512 3 4GND
DIGITAL I/O
V+mAG
1 2
ANALOG INPUT
V+mAGNONCC
1 2
RELAY
NONCC
NONCC
1 2
RELAY
NONCCV+mAG
1 2
ANALOG INPUT
V+mAG +51 23 4 GND
DIGITAL I/O
I+ G I+ G
1 2
mA OUTPUT
NONCC
1 2
RELAY
NONCC
NONCC
1 2
RELAY
NONCC
V+mAG
1 2
ANALOG INPUT
V+mAG
V+mAG
1 2
ANALOG INPUT
V+mAG
I+ G I+ G
1 2
mA OUTPUT
+512 3 4GND
DIGITAL I/O
+512 3 4GND
DIGITAL I/O
I+ G I+ G
1 2
mA OUTPUT
MOD ADDR 016 RT
RSSI 10
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Page 40
PDW90 Point to Multi-Point Wireless Instruction Manual
Figure 19. Base Station Dimensions –
Front View
Figure 20. Base Station Dimensions –
Side View
Figure 21. Field Unit Dimensions –
Front View
Figure 22. Field Unit Dimensions –
Side Cross Section View
Ø 0.35 (Ø 9.0)
2.31 (58.6)
4.30 (109.2)
4.27 (108.4)
2.44 (61.9)
2.74 (69.7)
3.62 (92.0)
2.17 (55.0)
½" NPT
4.00 (101.6)
Mounting Dimensions
Note: all units are in inches (mm).
Note: The supplied conduit plug may extend up to 0.6 in [15 mm] from the conduit opening when installed.
40
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Page 41
PDW90 Point to Multi-Point Wireless Instruction Manual
Pipe
PDA6963
PDA6963 Stainless Steel Pipe Mounting Kit for Field Units
Figure 23. PDA6963 Stainless Steel Pipe Mounting Kit for Field Units
41
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