WIZ1-434-RS WIZ1-434-D
Contents
1. a personal computer or to a remote unit It can be implemented by using two WIZ1 modules and by closing J P1 in the first module and JP2 in the second before supplying power According to the data transfer that took place between the two modules the TX LED shall remain on while the RX LED shall blink A further test can be carried out by connecting a module to a PC and by setting a second module in REMOTE PROGRAMMING J P3 closed by interrogating the remote module and by verifying the answer it can be seen whether the radio link is Operating or not AUR EL S p A Via Foro dei Tigli 4 47015 Modigliana FC ITALY Tel 390546941124 Fax 390546941660 http www aurel it email aurel aurel it WIZ1 434 RS WIZ1 434 D User Manual WIZ1 modules addresses WIZ1 modules are designed to be used in a master slave system max number of slaves 255 The distinction between master unit and slave is related to the software type according to the address introduced in the ADDRESS register e ADDRESS 0 system MASTER module e ADDRESS 1 255 SLAVE module The system must always have a master module programmed with the address 0 The microcontroller embedded inside the WIZ1 modules administrates the data packet coming through the RS232 gate the addressing of the data packet to be transmitted is carried out by the external system that requires the connection with a remote unit The address byte must be placed before the data2. RTS and CTS lines from the personal computer that has to conduct the operation iV AUR EL S p A Via Foro dei Tigli 4 47015 Modigliana FC ITALY Tel 390546941124 Fax 390546941660 http www aurel it email aurel aurel it WI Z1 434 RS WIZ1 434 D User Manual Here below the registers list their address and their functions REGI STER NAME ADDRESS FUNCTION DEFAULT WRITE READ a transmitted asa vane S preamble 3 Tbyte roe a RS232 protocol options 00 no parity 01 odd parity 02 not in use 03 even parity RELEASE 1f Microcontroller firmware version 01 R Registers 04 1d content is not applied for WIZ1 434 x modules Please pay attention to RS232 register programming because change of its value could prevent execution of software applications where parity cannot be changed Reference to CE Approvals To meet CEPT Recommendation 70 03 device must be used in transmission mode for a maximum timing duty cycle less than 10 max 6 minutes in transmission in an hour Device usage is subject to laws and rules of the Country e g in Italy Codice Postale e delle Telecomunicazioni art 334 and subsequent laws Test and technical reports performed at testing lab PRI MA RI CERCA amp SVI LUPPO via Campagna 58 22020 Gaggino Faloppio CO Italy AUR EL S p A Via Foro dei Tigli 4 47015 Modigliana FC ITALY Tel 390546941124 Fax 390546941660 http www aurel
3. bytes In case of a data packet addressed to another module or in case of a cheksum test failure the packet shall be considered void and therefore not forwarded to the remote unit Data interchange between units Data interchange between WIZ1 units follows the procedure illustrated here below O faery lt H R means Host to Remote communication 4 HR means Remote to Host communication 8 lt H gt R Data gt HU MASTER ADDRESS 0 SLAVE ADDRESS 8 1 Data addressing is managed by the system placed upstream of the WIZ1 master module the address byte of the remote WIZ1 module is placed before the data packet byte 2 The packet Is transmitted via radio channel by the WIZ1 master module iii AUR EL S p A Via Foro dei Tigli 4 47015 Modigliana FC ITALY Tel 390546941124 Fax 390546941660 http www aurel it email aurel aurel it WI Z1 434 RS WIZ1 434 D User Manual 3 The packet is received by the WIZ1 remote module if it is accepted the useful data are forwarded to the connected unit 4 In case the packet is a command that foresees a reply from the remote unit then the return data packet Shall be forwarded to the WIZ1 master module 5 This unit for example an industrial PLC or a sensor IS NOT REQUIRED to put first in the data packet s head the address of the unit from which the interrogation came i e the master the slave module shall care to pla
4. the use of the handshaking controls The signals employed to exchange the data in regard of the 9 pins connector D present on the board are TX pin3 RX pin2 and GND pin5 The module programming via cable takes place by switching the lines RTS pin 7 and CTS pin 8 The RTS line shall be taken to a low logic level by the personal computer that has to programme the module before sending the selected command The microcontroller shall switch the CTS line by lowering it within the end of the packet reception and raising it up again once the programming operation is over In both cases the programming operation of the microcontroller internal parameters can take place or can be read from the EEPROM on which they are recorded The programming procedure foresees the sending of a command of the type WRITE or READ WRITE lt address byte gt lt value byte gt READ lt address gt e Programming via radio the WIZ1 modules specially the WIZ1 434 D model can be programmed without the physical connection to a personal computer by sending the registers writing commands via radio to the remote module with J P3 closed The programming procedure via radio must involve one WIZ1 module only at a time In case there is a need to programme more modules repeat the above mentioned sequence for each of them The programming via radio differs from the one via cable for the jp3 jumper closing in the remote module and for the non administration of the
5. WI Z1 434 RS WIZ1 434 D User Manual WIZ1 434 RS WIZ1 434 D Single channel 9600 b s half duplex data transceiver module Available models e WIZ1 434 RS Data input by RS232 12V logic 9 15V supply positive to central pin e WIZ1 434 D Data input by TTL 0 5V logic and RS232 timing system 5V supply Box and holder are optional W1IZ1 434 RSB WIZ1 434 DB The power supply is not shipped with the unit It is customer responsibility to supply voltage to the WIZI unit according to pertinent safety normatives W1IZ1 434 RSB Antenna AUREL C 1 WI41 434 R5 Power sapply 9 187 DC Abimi Max a a ae and DB mod s or on the CE Mark is on the back side E of the plastic container RSB POWER TX and RX il PCB RS and D mod s LEDS ater j a g au i T z RS232 connector Power supply connector The WIZ1 434 x modules are half duplex smart transceivers that support a digital data packet transfer of 1 120 bytes length at 9600 b s speed The data transferred to the remote unit are error free since at the arrival are verified and confirmed Technical features Operating frequency 433 92 MHz RF output power 10 mW Operating temperature 20 80 C AUR EL S p A Via Foro dei Tigli 4 47015 Modigliana FC ITALY Tel 390546941124 Fax 390546941660 http www aurel it email aurel aurel it WI Z1 434 RS WIZ1 434 D User Manual Layout The WIZ1 434 RS model are powered
6. by a voltage supply range from 9 to 15V provided at the DC connector 1 and RS232 logic signals on the female 9 pins connector D 2 The WIZ1 434 D model are powered by a 5V power supply directly on the RS232 connector s pin9 originally RI signal Ring e is Indicator and the signals at the input with 0 5V logic they fully maintain iy hu the characteristics of an RS232 signal Start bit data parity 1 Stop bit and annua differentiate from them exclusively for the electrical levels e Hi The serial port receives data on pin3 transmits data on pin2 and has on pin7 RTS and pin8 CTS the programming signals 9 15V DC supply connector g Microcontroller RS232 D type female 9 pins POWER supply indication LED connector 3 Programming jumper From TX TESTING indication LED connector RS232 toward the antenna there are J P1 J P2 RX indication LED J P3 Jumper ICP In Circuit Programming 5 Votage stabiizersV SSS S for WIZ1 434 RS model only To reach the 3 programming jumpers remove with care the box front cover using a flat tip screwdriver inserted in the slots provided at the 4 corners The default jumpers are supplied opened Programming Jumpers JP1 JP2 JP3_ TX TEST x jo jo X close jumper RX TEST o x jo O open jumper REMOTE PROGRAMMI NG o jo x Module operation test The WIZ1 modules are equipped with a radio connection test procedure that does not need their connections to
7. ce its own address before the data packet s head 6 The master module at the reception via radio of the data packets DOES NOT CANCEL the byte of the remote module address by sending downstream all the data bytes received this function appears to be particularly useful in polling systems where an answer data packet can reach the questioning unit with not well defined delays This procedure is good for WIZ1 modules use in the industry where PLCs can be directed to operate on machines or questioned to monitor telemetry data Being not equipped with the adequate logic in order to handle the data string that composes the answer to a possible interrogation the WIZ1 remote module places therefore in front of the data from the PLC its own address in order to avoid that the originated packet Is understood from the other slave modules present in the system as a command coming from the master module to all other users of the system the head address shall cause the rejection of the answer taking into consideration the unique of the addressing The minimum time between two consecutive packet transmissions should be 300ms this device will avoid that an answer packet coming from a slave module is understood as its own by an other slave module that has the address equal to the 1st byte of the data packet Programming of the internal registers e Programming via cable The WIZ1 module takes up a data interchanging protocol RS232 without
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