1.Foreword
Way with the radio remote data collection, monitoring and control, as opposed to set up special cable (or cable), rental of telecommunication lines, etc., with low cost, quick construction, reliable operation, easy maintenance and so on.
SCADA Series of Shenzhen Sinosun Technology Co., Ltd.use the digital signal processing, error correction coding, software radio, digital modem and an integrated design surface mount technology, high performance, high reliability and strong anti-interference characteristics, the radio can provide standard RS232 data interface directly with the computer, RTU, PLC, GPS receivers, digital cameras, data terminals and other connections, transfer rates up to 19200bps, BER less than 10E-6 (when the receive level-110dBm), adjustable transmit power 0.5-25 watts, the radio can be any type set to master or remote station use, transit-free communication distance of 50 km, able to adapt to the harsh indoor or outdoor environment. Radio data and voice compatible, can work in simplex, half duplex, time division duplex TDD, full-duplex mode, receive the same frequency or different frequency transit network, and with remote diagnostics, testing, regulatory functions, or meet the needs of industry dispatch control center and many remote stations for data acquisition and control.
2.System Architecture
Siemens PLC with digital radio and point to point or multipoint communication network to achieve the following types of structure:
Wired connection:
Wireless:
1, PC (or Kunlun-state and other touch-screen) and PLC
PC running Siemens WINCC master or common configuration software through the computer's RS-232 port with WDS 2510/2710 radio data port connection. Slave PLC (such as S7-200 224/226 or S7-300) of the 485 input and output ports through the 232/485 interface converter with WDS 2510/2710 radio data interface. Master station and slave data transmission between multipoint transparent.
Siemens PLC and PC can be used between the PPI, MPI, or free port protocol (9600,8 E1 format).
2, the master-slave PLC
In many application projects, many on-site control center equipment to be remote from the station according to the state by the PLC control, master-slave PLC network, the system uses free port protocol (9600,8 E1 format).
Radio Specifications
Sinosun digital radio for the PLC and PC provides two-way between the transparent and reliable high-speed transmission channel, radio with power antenna, feeder lines, surge arresters (antenna mount in the outdoors). And the corresponding radio equipment, according to the topography and grade of communication range and application requirements, there are several models to choose from.
The technical indicators are as follows:
WDS2710 type radio
Frequency: Huaxia Sheng SCADA series radio can work in all available frequency bands, including 130 ~ 174
MHz (WDS1710 type) / 220 ~ 240MHz (WDS2710 type) / 330 ~ 512MHz (W
DS4710-based) / 800 ~ 960MHz (WDS9710 type) / 2.4 ~ 2.4835GHz (WDS248
10 type).
Transfer rate: 19200bps.
Work: support simplex, half duplex, etc., voice and data compatibility, provide intercom calls.
Transmission distance: 50 km (open no cover).
Physical interface: standard RS-232, communication speed can be adjustable from 300 to 38400bps, fully transparent transmission, no special communications software.
System architecture: supports point-to-multipoint transmission, a multi-level transit network.
Modulation: CPFSK.
1.8, channel spacing: 12.5KHz/25KHz.
1.9 Transmit Power: 100mW ~ 5W continuously adjustable, useful 25 watts transmit power option.
1.10, error sensitivity:-111dBm or more (bit error rate BER ≤ 10E-6).
1.11, send and receive conversion time: 3ms.
1.12, Sleep current: less than 18mA.
1.13, frequency stability: ± 1.5ppm.
1.14, status and error indication: LED status indication, including power, carrier, transmitting data, receiving data and a variety of fault alarm.
1.15, short-circuit protection: Yes.
1.16, operating temperature: -30 ℃ ~ +60 ℃, at work: -40 ℃ ~ +70 ℃.
1.17, relative humidity: 95%, 40 ℃, non-condensing.
1.18, power supply: the radio work when the voltage is 10.5 ~ 16VDC, emission current of 1.5A, receive current of 125mA. Work with switching power supply 220VAC.
1.19, Size: 5.08 × 14.29 × 18.4CM.
1.20, weight: about 1 kg.
1.21, free radio parameters, diagnostic setting software.
WDS2510 type radio
2.1, frequency: Huaxia Sheng DATA series radio can work in 130 ~ 174MHz (WDS1510 type) / 220 ~ 240MHz (WDS2510 type) / 330 ~ 512MHz (WDS4510 type) regular band.
2.2, transfer rate: 9600bps.
2.3, work: support simplex, half duplex, etc..
2.4, distance: 30 km (open non-stop).
2.5, the physical interface: standard RS-232, communication speed can be adjustable from 300 to 38400bps, fully transparent transmission, no special communications software.
2.6, system architecture: Support for point to point, multipoint transmission, a multi-level transit network.
2.7, Modulation: 4 CPFSK.
2.8, channel spacing: 12.5KHz.
2.9, transmit power: 100mW, 1W, 2W adjustable, useful 25 watts transmit power option.
2.10, error sensitivity:-108dBm or more (bit error rate BER ≤ 10E-6).
2.11, transceiver switching time: less than 15ms.
2.12, Sleep current: less than 18mA.
2.13, frequency stability: ± 1.5ppm.
2.14, status and error indication: LED status indication, including power, carrier, transmitting data, receiving data and a variety of fault alarm.
2.15, short-circuit protection: Yes.
2.16, operating temperature: -30 ℃ ~ +60 ℃, at work: -40 ℃ ~ +70 ℃.
2.17, relative humidity: 95%, 40 ℃, non-condensing.
2.18, power supply: the radio work when the voltage is 10.5 ~ 30VDC, emission current of 575mA (2W power, 13.8VDC), receive current of 75mA. Work with switching power supply 220VAC.
2.19, free radio parameters, diagnostic setting software.
2.20, Dimensions:
Integrated board products: 110 × 19 × 95.
Machine Products: 165 × 44 × 120.
2.21, weight:
Integrated board products: about 0.13KG.
The whole product: about 0.45KG.
Switching Power Supply (Taiwan Ming Wei)
3.1 Environmental conditions
3.1.1 Working temperature: -20 ℃ ~ +55 ℃
3.1.2 Storage temperature: -40 ℃ ~ +80 ℃
3.1.3, relative humidity: 5% to 95%
3.1.4 Altitude: ≤ 3000m
3.1.5 Atmospheric pressure: 70 ~ 106KPa
3.1.6 Cooling: natural heat conduction
3.2 Input Characteristics
3.2.1 The Input Voltage Rating: 220Vac
3.2.2, input voltage range: 165Vac ~ 285Vac
3.3, the output electrical characteristics
3.3.1, output rated DC voltage: +13.8 Vdc3.
3.2,2 output current range: + 13.8Vdc / 0A ~ 6A
3.3.3, regulation accuracy: ≤ ± 2%
3.3.4, load regulation: ≤ ± 2%
3.3.5, source of regulation: ≤ ± 1%
3.3.6, output ripple: +13.8 Vdc / ≤ 100mV
Master omnidirectional antenna (Guangdong Guanhua)
Frequency range: 220 ~ 290MHz
Bandwidth: 9MHz
Gain: 8.5dBi VSWR: ≤ 1.5
Nominal Impedance: 50Ω
Polarization: Vertical Max Power: 150W
Connector: SL16 or N Block
Vertical Beamwidth: 14.5 °
Length: 4.4m weight: 3.5kg
Rated Wind Velocity: 60m / s
Note: The FRP was divided into two sections.
Directional antenna from the station (Guangdong Guanhua)
Frequency range: 220 ~ 290MHz
Bandwidth: 16MHz Gain: 9dBi
VSWR: ≤ 1.5
Nominal Impedance: 50Ω
Polarization: vertical or horizontal Maximum Power: 100W
Connector: SL16 or N Block
Beamwidth: E face: 48 ° H Plane: 54 °
front to Back Ratio: ≥ 14dB length: 1m weight: 2kg wind Velocity: 60m / s
Slave simple antenna (Guangdong Guanhua)
Frequency range: 220 ~ 290MHz
Bandwidth: 9MHz
Gain: 3.5dBi
VSWR: ≤ 1.5
Nominal Impedance: 50Ω
Polarization: Vertical
Max Power: 100W
Connector: the first leads to the cable length specified by the user: 80cm
Weight: 120g Note: antenna with M110 or other large magnetic block.
Feeder (Zhuhai Hamilton Sundstrand)
Arrester (For outdoor antenna mount)
Model: CA-23RS
Description:
The main parameters: Frequency range: DC ~ 2500MHz
VSWR:
Nominal impedance: 50Ω
Connector: NJ Peak Power: 200W
Discharge start voltage: DC230V
Insertion loss: 0.1dB
Dimensions: 74 × 4.25 × 20 (mm)
Weight: 100g
PLC network with domestic and international manufacturers and the industrial applications
Shenzhen Sinosun digital radio in addition to the series easily with Siemens PLC wireless network, the large numbers with AB, GE, Schneider, MODICON, LG, domestic (and Belgium, security control, Yonghong, Delta, Taian , ICP DAS, Koyo) and Japan Mitsubishi, OMRON, Panasonic PLC to achieve a variety of wireless data communications protocol, set up hundreds of water treatment, oil and gas, heat supply pipe network monitoring, manufacturing process control automation projects. Please visit Shenzhen Sinosunwebsite（www.sinosun.cn ）
Hebei county water plant with water system monitoring and control diagram:
