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PDW30 Point-to-Point Wireless Bridge
Brand: Precision Digital Corporation
The Precision Digital PDW30 gives you a simple, straightforward way to get an Analog, discrete, or Modbus signal from where you have it to where you need it.
It’s a point-to-point wireless bridge packaged in a rugged, weather tight housing designed to meet the demands of industrial installations.
The PDW30 starts with an Analog, discrete, or Modbus® input and wirelessly broadcasts it to a second PDW30 unit. The second unit then recreates that signal at its location.
Just put the units in the field anywhere you have 12-24 Vdc power.
Features- Signal Wire Replacement in a Rugged, Industrial Housing
- Inputs and Outputs on Both Field Units
- Simple to Order, Configure, & Install
- 1 Mile Line-of-Sight Outdoor, 500 Ft Indoor Range
- Inputs: Analog (4-20 mA, 0-10 V, 0-5 V, 1-5 V), Digital, and RS-485 Modbus Communications
- Outputs: Analog (4-20 mA), Digital, and RS-485 Modbus® Communications
- Remote or Attached Antenna
- Repeaters and Directional Antennas Available
- Flanges for Wall or Pipe Mounting
- Software Available for Even Easier Setup
- NEMA 4X, IP68 Enclosure
Specifications
Accuracy
- Analog Input: ± 0.03 % of Calibrated Span ± 1 Count
- Isolated 4-20 mA Transmitter Output: ± 0.1 % of Span ± 0.004 mA
Calibration
- Isolated 4-20 mA Transmitter Output: Factory Calibrated 4-20 mA
- Recalibration is Recommended at Least Every 12 Months
Communication
- Analog Input Will Not Interfere with Existing HART Communications on the Wired 4-20 mA Signal
- PDW Manager Software: USB 2.0 (Standard USB A to Micro USB B)
- RS-485 Modbus RTU
- RS-485 Modbus RTU Serial Communication (Data): 8-bit (1 Start Bit, 2 Stop Bits)
- RS-485 Modbus RTU Serial Communication (Modbus Timeout): 0.5 to 5 seconds
- RS-485 Modbus RTU Serial Communication (Parity): Even, Odd or None with Stop Bit: 2-bits
- RS-485 Modbus RTU Serial Communication Baud Rate: 1,200 to 57,600 bit/sec
- RS-485 Modbus RTU Serial Communication: EIA-485
Conduit Connection
- 1/2” NPT
Current
- Digital Input/Output Terminal (Sink Current): 1.5 mA Min. Input Current
- Digital Input/Output Terminal (Source Current): 10 mA - Max.
Display
- 32-Character Dual-Line Alphanumeric Dot Matrix LCD Display with Backlight (4.68 mm x 2.21 mm Characters)
- Display Orientation: Display May be Mounted at 180° from Default Orientation
Distance
- RS-485 Modbus RTU Serial Communication: 3,937 feet (1,200 metres) - Max.
Electrical Connectors
- Removable Screw Terminal Blocks Accept 16 to 30 AWG Wire
- RS-485 Modbus RTU Serial Communication: Removable Screw Terminal Connector
Enclosure Finish
- Blue
- Corrosion-Resistant Powder Coating
Enclosure, Body Material
- 0.30 %, Max.
- Cast Aluminum with Glass Window
Environmental Protection
- IP66
- IP68
- NEMA 4X
Frequency
- Wireless Radio: 900 MHz
Humidity
- 0 to 90 % Relative Humidity, Non-Condensing
Input
- Analog Input: 0-10 V
- Analog Input: 4-20 mA
- Digital Input/Output Terminal (Digital Input Logic High): 3-5 Vdc, TTL Logic Level
- Digital Input/Output Terminal (Digital Input Logic Low): 0-1.1 Vdc
Input Impedance
- Analog Input at Current Range: 50 to 100 ohms (Depending on Resettable Fuse Impedance)
- Analog Input at Voltage Range: > 500 kiloohms
Isolation
- 500 V
Loop Resistance
- Output Loop Resistance at Power Supply 24 Vdc: 10 to 900 ohms
Mounting
- 1.5” Pipe
- Pipe
- Wall Mounting
Operating Temperature
- -40° to 65° C (-40° to 149° F) [Display Inoperable < -20° C (-4° F)]
Output
- 4-20 mA
- Digital Input/Output Terminal (Digital Output Logic High): 3.1 to 3.3 Vdc
- Digital Input/Output Terminal (Digital Output Logic Low): 0-0.4 Vdc
- Isolated 4-20 mA Transmitter Output (Signal Loss): 3.2 mA after Approximately 25 seconds
- Wireless Radio (Power Output): 24 dBm (250 mW)
Plug Material
- Conduit Plug: Stainless Steel
Power
- 12-28 Vdc, 5 W, Max.
Programming
- Four Programming Buttons (Behind Glass)
- PC with PDW Manager Software
Range
- Wireless Radio: 5,280 feet (1,610 metres) Outdoor (Line-of-Sight)
- Wireless Radio: 500 feet (152.4 metres) Indoor
Sensitivity
- Wireless Radio: -101 dBm
Storage Temperature
- -40° to 85° C (-40° to 185° F)
System Requirements
- PDW Manager Software: Windows® XP/Vista/7/8/10
Thermal Drift
- Analog Input: 0.005 % of Calibrated Span/°C, Max.
- Analog Input: 0.01 % of Calibrated Span/°C, Max.
- Isolated 4-20 mA Transmitter Output: 0.4 μA/°C, Max.
- Isolated 4-20 mA Transmitter Output: 0.8 μA/°C, Max.
Torque
- Signal Connector Tightening Torque: 0.28 Nm (2.5 In/Lbs)