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CONTENTS Contents 1. 2. Safety instructions Description of the CDA70 radio modem 2.1. General 2.2. Examples of possible applications 2.3. Description of individual components 2.3.1. Radio component 2.3.2. Modem component 2.3.3. Microcomputer 2.3.4. Inputs and outputs for telemetry 2.3.5. User interface protocols 2.3.6. Technical parameters 2.4. Radio modem status indication 2.5. User interfaces (connectors) 2.5.1. Connection of PORT1, PORT2 and PORT3 connectors (RS232) 2.5.2.
CONTENTS 5.1. Systems 5.2. Protocols 5.3. Software 5.4. Products 6. Product disposal informations 7. Complaints procedure 8. Warranty 39 39 39 39 39 40 42 Symbols used Danger – important notice, which may have an influence on the user’s safety or the function of the device. Attention – notice on possible problems, which can arise to in specific cases. Information, notice – information, which contains useful advices or special interest. Conel s.r.o.
SAFETY INSTRUCTIONS 1. Safety instructions Please observe the following safety instructions: • The communication module has to be used in accordance with all applicable international and national laws or any special regulations that may govern its use for particular applications and devices. • Use only the original Conel company accessories. Thus you will prevent possible health risks and damage to the devices and ensure compliance with all relevant provisions.
CDA70 MODEM DESCRIPTION 2. Description of the CDA70 radio modem 2.1. General The CDA70 radio modem is a device for wireless data transmission. Communication between two radio modems is a simplex one and is carried out on a single frequency. Modems work in frequency band of 143 to 174 MHz (CDA70V) and 403 to 470 MHz (CDA70U). Transmission rate is 21.7 kbit/sec when using the FFSK modulation and channel spacing 20 and 25 kHz or 10.8 kbit/sec when using channel spacing 12.5 kHz. Transmission rate is 10.
CDA70 MODEM DESCRIPTION 2.3.2. Modem component The modem part converts digital bit flow from the microcomputer to the FFSK or GMSK analogue modulation, which is brought to the transmitter of the radio data module. And vice versa, it converts analogue signal from the receiver to digital bit flow to the microcomputer. The modem part is designed on the basis of a CML integrated circuit. 2.3.3.
CDA70 MODEM DESCRIPTION outputs. With the equipment you may establish simple telemetry at low cost, without the use of industrial control automat. 2.3.5. User interface protocols For user interface, a range of standard protocols is implemented: • AT modem • PROFIBUS • M-BUS • MODBUS • Asynchronous transparent line • Transparent bus • Sauter • IWKA • SBUS • RADOM • RDS New protocols, currently not supported by the radio modem, can be implemented according to the customer's needs.
CDA70 MODEM DESCRIPTION 2.3.6.
CDA70 MODEM DESCRIPTION 2.4. Radio modem status indication Seven LED status indicators informing of the radio data modem status are located on the front panel. They are arranged in three arrays: Colour GREEN Group RF GREEN PORT1PORT3 YELLOW ETH GREEN RX Receiving synchronisation or data from radio channel DATA Data received from radio channel are intended for this modem GREEN RED TX Blinking 1:9…..……..proper function Blinking 9:1…..……..RF monitoring Permanently on ......
CDA70 MODEM DESCRIPTION 2.5.1.
CDA70 MODEM DESCRIPTION Circuit example of the RS232 equipment with modem CDA70: PWR CIO PORT3 PORT2 PORT1 Cable KD-2 Modem CDA70 ETH Connection of PORT1 connectors (M-BUS) 2.5.2.
CDA70 MODEM DESCRIPTION Circuit example of the meter with modem CDA70 with data cable length more than 10 m: Meter SGND MBUS (-) MBUS (+) Pin 1 – SGND Pin 2 – SGND Pin 3 – MBUS (-) Pin 4 – MBUS (+) Modem CDA70 Pin 5 – MBUS (-) Pin 6 – MBUS (+) Pin 7 – +12V EXT Pin 8 – +12V EXT 1X 1Y 2X 2Y OVPM-21 + Meter DC SGND MBUS (-) MBUS (+) M-BUS data cable more than 10 m it is need to use over-voltage protection on CDA 70 modem side! External or internal power supply of expansion port M-BUS it is can evoke b
CDA70 MODEM DESCRIPTION Circuit example of the meter with modem CDA70 with data length less than 10 m: Pin 1 – SGND Pin 2 – SGND Pin 3 – RS485 (-) Pin 4 – RS485 (+) Pin 5 – RS485 (-) Pin 6 – RS485 (+) Pin 7 – +12V EXT Pin 8 – +12V EXT SGND RS485 (-) RS485(+) Meter Meter SGND RS485 (-) RS485(+) Modem CDA70 + DC Circuit example of the meter with modem CDA70 with data length more than 10 m: Meter SGND RS485 (-) RS485 (+) Pin 1 – SGND Pin 2 – SGND Pin 3 – RS485 (-) Pin 4 – RS485 (+) Modem CDA70 Pin 5
CDA70 MODEM DESCRIPTION 2.5.4. Connection of ETH connectors (ETHERNET) Panel socket RJ45 Pin Signal mark number 1 TXD+ 2 TXD3 RXD+ 4 DNC 5 DNC 6 RXD7 DNC 8 DNC Data flow direction Input/Output Input/Output Input/Output Description Transmit Data Transmit Data Receive Data ----Receive Data ----- Input/Output ATTENTION! Port ETH is not with POE (Power Over Ethernet) compatible! Circuit example of the CDA70 with to equipment with Ethernet: UTP cable 2.5.5.
CDA70 MODEM DESCRIPTION 15
CDA70 MODEM DESCRIPTION 2.5.6. Power supply connector (PWDD) Pin number 1 Signal mark +12V Positive pole of supply voltage 2 GND Negative pole of supply voltage 3 PWRSV 4 IN1 Description Open collector output (Power Save) for controlling of supply voltage of the whole radio modem, see chapter 3.4 Input -power failure supervision.
CDA70 MODEM DESCRIPTION Circuit example: DC supply DC + Pin 1 – +12V Pin 2 – GND Pin 3 – PWRSV Pin 4 – INAC Modem CDA70 DC supply with backup battery with present supply monitoring Pin 1 – +12V Pin 2 – GND Pin 3 – PWRSV Pin 4 – INAC Modem CDA70 DC + DC supply with backup battery without present supply monitoring Pin 1 – +12V Pin 2 – GND Pin 3 – PWRSV Pin 4 – INAC DC + 17 Modem CDA70
CDA70 MODEM DESCRIPTION 2.6. Antenna connection Antenna is connected to the radio data modem via a BNC connector located on the side panel. 2.7. Power supply Supply voltage working range of the radio modem is +10.8 to +15.6V dc (12V accumulator). Current consumption during reception is 190 mA. During transmission, current consumption depends on the transmission output (1500 mA for 5 W). For proper function, it is necessary that the power source can supply peak current of 2000mA.
CDA70 MODEM DESCRIPTION 2.8. Ports technical specifications • RS232 Name of product Power supply Environment Standards RS232 specifications (EN 1434) • RS232 Internal Operating temperature Storage temperature Emission Immunity Safety Max. operating bus current Max. bit rate Max. overvoltage Max. total cable length (300Bd, 200nF/km) .... -20 .. +55 C -20 ..
CDA70 MODEM DESCRIPTION Connection of the jumpers: CDA-70-U(V)-4M version Jumper J3 • CDA-70-U(V)-EM version Jumpers SK7 and SK8 M-BUS Name of port Power supply Environment Standards M-Bus specifications (EN 1434) M-BUS Voltage Supply power Operating temperature Storage temperature Emission Immunity Safety Max. devices (each 1,5 mA) Max. operating bus current Overload detection Short circuit strength Bus voltage mark Bus voltage space Max. total cable length (300Bd, 200nF/km) 10,8 .. 15,6 V Max.
CDA70 MODEM DESCRIPTION Connection of the jumpers: CDA-70-U(V)-4M version Jumper J4 • Ethernet Port Power supply Environment Standards Ethernet specification 21 CDA-70-U(V)-EM version Jumpers SK9 a SK10 ETH Internal Operating temperature Storage temperature Emission Immunity Safety Max. virtual communicate channels number Max. bit rate Max. total cable length (300Bd, 200nF/km) ... -20 .. +55 C -20 ..
CDA70 MODEM DESCRIPTION 2.9. Configuration of radio modem The Radwin configuration program [1] has been designed to set up the CDA70 radio data modem. The software is created for MS WINDOWS NT/98/ME/2000/XP/Vista platforms. See User manual - Radwin software for description of the software. A service cable is designated to connect the modem with a PC.
CDA70 MODEM DESCRIPTION 2.11. 1. 2. 3. 4. 5. Power supply connector for a power supply cable Three RJ45 connectors to complete the data cable by snapping to the cable. Compliance certificate Complaint procedure Warranty 2.12. 1. 2. 3. 4.
CDA70 MODEM DESCRIPTION 2.13. Mechanical drawing of CDA70 and recommendations for montage For the majority of applications with a built-in modem in a switch board it is possible to recognize two sorts of environments: • nonpublic and industry environment of low voltage with high interference, • public environment of low voltage without high interference.
CDA70 MODEM DESCRIPTION For compliance of EN 60439 - 1 + A1 specification it is necessary observe next assembly of the modem to the switch - board: 25 • round antenna we recommend to observe a distance of 6 cm from cables and metal surfaces on every side according to the next picture due to the elimination of interference, while using an external antenna except for the switch-board it is necessary to fit a lightening conductor, • for single cables we recommend to bind the bunch according to the followi
CDA70 MODEM DESCRIPTION 26 • sufficient space must be left before individual connectors for handling of cables, • for correct function of the modem we recommend to use in switch - board earthbonding distribution frame for grounding of power supply of modem, data cables and antenna, • the circuit diagram of modem is on the following pictures.
CDA70 MODEM DESCRIPTION 2.14. Product marking Marking Antenna connector Power supply Other CDA-70-XX-YY BNC +10,8 to 15,6 V DC CIO XX – frequency band U V 403 to 470 MHz 143 to 174 MHz YY – port configuration 3x RS232 1x M-BUS + 1x RS485 + 1x RS232 1x Ethernet + 3 x RS232 1x Ethernet + 1x M-BUS + 1x RS485 + 1x RS232 1x CAN 1x RS232 + 2x RS485 3 4M E EM C 4 Example: CDA-70-U-3 is radiomodem for band 403-470 MHz with 3x RS232.
CDA70 MODEM DESCRIPTION 2.15. Assembly procedure The radio data modem CDA70 is designed as a standard for: 1. DIN 35 mm rail assembly using plastic grips.
CDA70 MODEM DESCRIPTION 2. DIN 35 mm rail assembly using plastic grips from back side.
CDA70 MODEM DESCRIPTION 2.16.
CDA70 MODEM DESCRIPTION 2.17. Basic parameters description For monitoring of status, configuration and administration of the modem is RADWIN program [1]. In right under main menu is function list where is possible choice Configuration (Ctrl + F1). Next table describes parameters of the tap Basic. Ports description is depend on used protocol. Protocols description is possible to get from Conel Company.
CDA70 MODEM DESCRIPTION Parameter name RF channel protocol Set value range --- Parameter description Information protocol. about used radio channel Relay station YES/NO Indicates relay property of this station. Only for automatic tables. Mobile station YES/NO When this parameter is set on YES, than this modem never works as relay station and sends data directly to destination stations (no relay) regardless of signal levels. Mobile station is intended for maintenance purposes in network.
CDA70 MODEM DESCRIPTION Parameter name Low threshold RF signal level Set value range Parameter description -90 up to -130 Threshold of RF signal level when the RF dBm channel is considered to be busy. Maximum number of linked packets 1 up to 10 Maximum number of packets which are linked together and send at once. This value must be optimized regarding channel loading and accessibility. Additive constant for RSSI --- Additive constant for RSSI size information.
CDA70 MODEM DESCRIPTION Parameter name Set value range Parameter description Log CIO YES/NO When this parameter is set to YES, than CIO information is stored to the journal. Log service events YES/NO When this parameter is set to YES, than service events are stored to the journal. Log ARET events YES/NO When this parameter is set to YES, than automated tables information are stored to the journal.
CIO DESCRIPTION 3. CIO - analogue inputs and binary outputs 3.1. Introduction CDA70 is equipped with a user interface (I/O) for scanning and processing of analogue signals and for controlling (setting) of binary signals. The user can use five adjustable inputs outputs, which are placed on the I/O connector at the back panel of the module. More about CIO 2 modules see [3]. 3.2.
CIO DESCRIPTION I/O signals parameters 3.2.4. Signal name I/O1-5 Measuring range [V] 0 to 5 Resolution Sampling [bit] [msec] 10 100 Average from samples Hysteresis Control level Optional 1 - 128 Optional 0 - 255 Optional 3.3. Measuring other CDA70 signals Measuring the supply voltage 3.3.1. In CDA70, two more signals are evaluated. The first one is called UN+ (DC SUPLY); it is an internal one and it measures the supply voltage at the supply terminals of CDA70. The measuring range is 0 to 20V.
CIO DESCRIPTION 3.3.3. Measuring DSR output signal level On CDA70 side, DSR signals on individual user interfaces are output signals. They are not internally controlled. Individual signals are connected via 1k8 ohms resistors to the 12V supply voltage (the same voltage as at the supply connector of CDA70). Due to the loading of DSR output by a 100 ohm resistor to the earth, the supply voltage on the output drops to 2V.
CIO DESCRIPTION LED on the front panel. Input circuits are protected against short-time over voltage by suppressors and against the long-time one by a reverse fuse. Ranges of the measured values: U 1V, U 2V, U 5V, U 10V, U 20V I 5mA, I 10mA, I 20mA Pt100 100oC, Pt100 200oC, Pt100 500oC Resistance 100 to 50000 Ohm (METRA transmitter) CIO OPI 2 Binary input A single galvanic-separated digital input used for direct and alternate signals up to 30V.
REFERENCE AND LINKS 4. Reference [1] Conel s.r.o.: RADWIN Program for control AGNES, 2008 [2] Conel s.r.o.: Application CGU Server, 2004 [3] Conel s.r.o.: CIO 2 User’s guide, 2008 5. Links to related products of the manufacturer For related and referenced products and material, see the Conel website: www.conel.cz 5.1. Systems AGNES - a comprehensive communication system made by Conel. 5.2. Protocols ARNEP – Advanced Radio Network Protocol – one of AGNES protocols. 5.3.
COMPLAINTS PROCEDURE 7. Complaints procedure Dear customer, The product you have purchased had passed manufacturer's tests and its functions had been checked by our technician before sale. In case any defect shows up during the guarantee period that prevents normal use we ask you to follow the Complaints procedure when registering your claim.
COMPLAINTS PROCEDURE 3. 4. 5. The claim is deemed unsubstantiated when the defect is not found by the vendor processing the complaint or the defect is not covered by the guarantee under Article 3 of the procedure. In case the claimed defect is not found and functionality is proven to the customer, the customer is obliged to pay demonstrable cost related to expert assessment of the claimed defect.
WARRANTY 8.
WARRANTY 1 2 3 4 5 YES - NO YES - NO YES - NO YES - NO YES - NO Date of complaint registration Complaint protocol number Date of reception of the device in repair shop Date of finished repair Number of repair sheet Warranty repair New serial number of the device Notes Seal of the repair shop 43
