CONTENTS Contents 1. 2. Safety instructions Description of the CDA70 radio modem 2.1. General 2.2. Examples of possibles aplications 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 3.7. Connecting CIO signals to user device Reference Links to related products of the manufacturer 5.1. Systems 5.2. Protocols 5.3. Software 5.4. Products 6. Complaints procedure 7. Warranty 4. 5. 32 34 34 34 34 34 34 35 37 Used symbols 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.
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 • MBUS • 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 PWR TX RED YELLOW RF GREEN RX DATA GREEN RED Meaning PORT1PORT3, ETH TX DATA Flashing once a sec………..proper function Flashing 10 times a sec. ……...power of radio module off Permanently on ...... error Permanently off ..... no power +12V Double flashing ….
CDA70 MODEM DESCRIPTION 2.5.1.
CDA70 MODEM DESCRIPTION 2.5.2.
CDA70 MODEM DESCRIPTION Circuit example of the meter with modem CDA70: 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 Meter Modem CDA70 DC + 2.5.4.
CDA70 MODEM DESCRIPTION 2.5.5.
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 DC supply with backup battery without present supply monitoring Pin 1 – +12V Pin 2 – GND Pin 3 – PWRSV Pin 4 – INAC DC + 15 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. 2.8.
CDA70 MODEM DESCRIPTION • MBUS Name of port Power supply Environment Standards M-Bus specifications (EN 1434) • 10,8 .. 15,6 V Max. 30 W -20 .. +55 C -20 .. +85 C EN 55022/B ETS 300 342 EN 60950 30 60 mA 100 mA Permanent 36 .. 43 V 24 .. 31 V 1000 m Ethernet Port Power supply Environment Standards Ethernet specification 17 MBUS Voltage Supply power Operating temperature Storage temperature Emission Immunity Safety Max. devices (each 1,5 mA) Max.
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: 21 • 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 22 • 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 MBUS + 1x RS485 + 1x RS232 1x Ethernet + 3 x RS232 1x Ethernet + 1x MBUS + 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. 2.15.
CDA70 MODEM DESCRIPTION 2. DIN 35 mm rail assembly using plastic grips from back side.
CDA70 MODEM DESCRIPTION 2.16.
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.
CIO DESCRIPTION SCRIPTION Maximum switched current of the output is 500mA. Maximum voltage allowed at the transistor collector equals the supply voltage of the modem. It is possible to set the CIO parameters so that the binary value is inverted. 3.2.3.
CIO DESCRIPTION SCRIPTION 3.2.4.
CIO DESCRIPTION 3.3.1.1. Conversion formulas for voltage measurement U = 215 * AD / 1024 [0.1 V] AD = 1024 * U / 215 Whereas: AD…analogue/digital converter value U …voltage measured Measuring internal CDA70 temperature 3.3.2. The temperature measuring inside the CDA70 unit is performed to secure correct function of the radio module.
CIO DESCRIPTION voltage would drop below 3V. The signal can be used for user applications within the range of 3V to 12V. As well as the other signals, DSR values are accessible within CIO communication reports (see the ARNEP protocol description). 3.4. Output signal for disconnection of supply voltage The only exclusively "output" signal is PWRSV (Power Save). The signal is linked to the supply connector (see the supply connector description). It is connected as universal I/O signal outputs.
CIO DESCRIPTION 3.6.3. CIO active mode parameters Parameter name Set values range Meaning of parameter Auto operation YES/NO In case the parameter is set to (YES), CIO operates in the active mode and the following parameters will influence its function. In the other case, the following parameter settings have no influence over CIO function.
CIO DESCRIPTION Log. number 1 1 to 254 Destination address of the first user interface where CIOgenerated report will be sent. Log. number 2 1 to 254 Destination address of the second user interface where CIO-generated report will be sent. MinTime [msec] 0 to 6553500 Time hysteresis after which CIO may generate new report The shortest period for transmitting the reports.
CIO DESCRIPTION integration circuit that provides for direct processing of 50 Hz signal. Output logical value of the measured signal is LED signalled 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. Input D.C. voltage of 3-30V Input A.C. voltage of 3-30V rms CIO REO Binary output A single relay output. It includes a relay with a single changeover contact.
REFERENCE AND LINKS 4. Reference [1] Conel s.r.o.: RADWIN Programme for control AGNES, 2007 [2] Conel s.r.o.: Aplication CGU Server, 2004 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 6. 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 7.
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 38
