User`s Manual PMM 3000
Contents
1. End character PMM 3000 will respond with the following string c c In this case the address is not used because the PC does not need it Between C C there is the message text where the length can varies from 1 to 100 characters Document 3000EN 70206 1 41 NARDA 2007 How to program 4k narda Safety Test Solutions 4 6 PMM 3000 commands The following are the commands that PMM 3000 can understand or gives 4 6 1 Frequency programming 4 6 2 Modulation programming 4 6 3 Level programming 4 6 4 RF OFF and RF ON back to PC 00V 00v 00F lt freq gt 00 f 00M4 00M1 00Me 00Mp 00M5 H00M0 00 m request to send back to PC the type of generator in use request to send back to PC the revision number send the frequency value in MHz request to send back to PC the actual frequency The answer will be F lt freq gt MHz to enable 400 Hz modulation to enable 1 kHz modulation to enable external modulation to enable Pulse modulation to enable 1 Hz Pulse modulation to disable all modulation request to send back to PC which type of modulation is present The possible answers are The answer will be Lev lt lev gt dBm MOD 1 MOD 4 MOD p MOD 5 MOD e MOD 0 00L lt lev gt 00 L 00R0 00R1 00 r How to program 1 kHz modulation 400 Hz modulation Pulse modulation POD 1 Hz Pulse modu2. Legend 1 LCD display 2 Functional keys 3 RF output connector Fig 1 2 Rear Panel Legend 1 Mains plug 2 voltage selector 3 ground lead 4 DC input power 5 RX TX leds 6 External AM modulation 7 RS232 485 interface 8 User I O port General Information 1 7 Functional description works md narda Safety Test Solutions PMM 3000 philosophy is based on high technology approach to offer high performance into small instrument The block diagram give you an idea how it IN AM EXT Ja ae eee a nan AA GENERATOR PMM3000 RF MODULE V 2 0 LPF150 LPF15 OX ES 400 1 200 LEVEL 100 200 EN gee mad Ng Hz kHz Hz FR Ps sine sine square CTRL PIN QD LPF200 LPF20 SWITCHES EKS KI 200 350 LPF350 gt Nid NE ar LA VV V Te D CS HAN Ng LPF35 SWITCHES COMP lt RIV kh EN 3 100MHz FR gt 1GHz LPF500 o 350 500 T er 4 KA PIN gt PIN AM GAIN PIN gt PIN Bab A o Tha D gt LPF50 OD gt F
3. k oh Contents m narda Safety Test Solutions Figures Figure Page 1 1 Front panel iii 1 3 1 2 Rear pana Vvs 1 3 1 3 Block diagram of the PMM 3000 1 4 Tables Table Page 1 1 Main SpecificatiONS n 1 2 Contents narda Safety Test Solutions Yy SAFETY RECOMMENDATIONS AND INSTRUCTIONS This product has been designed produced and tested in Italy and it left the factory in conditions fully complying with the current safety standards To maintain it in safe conditions and ensure correct use these general instructions must be fully understood and applied before the product is used When the device must be connected permanently first provide effective grounding If the device must be connected to other equipment or accessories make sure they are all safely grounded In case of devices permanently connected to the power supply and lacking any fuses or other devices of mains protection the power line must be equipped with adequate protection commensurate to the consumption of all the devices connected to it In case of connection of the device to the power mains make sure before connection that the voltage selected on the voltage switch and the fuses are adequate for the voltage of the actual mains Devices in Safety Class I equipped with connection to the power mains by means of cord and plug can only be plugged into a socket equipped with a g
4. SWITCHES gt SWITCHES MODUL CTRL SWITCHES H SWITCHES Eg 500 750 LPF750 NG ae 100MHz iv Vv Te 10MHz 100kHz ATT Di A gt Du x LPF75 Er oy Px 10MHz 70 Ng PIN gt PIN dB F gt MO a DI 750 1000 LPF1000 SWITCHES gt UN gt SWITCHES FR x Vv de GE LPF DD RA EN LPF100 ko 10MHz oe D NG Es XTAL 20 VA LOOPFILTER PLL LPF Or H PRETUNE STEP10kHz 20MHz General Information OUT 100kHz 1GHz 10 80 dBm narda Safety Test Solutions 2 Installation 2 1 Introduction This section provides the information needed to install your PMM 3000 Included is information pertinent to initial inspection power requirements line voltage and fuse selection power cables interconnection environment instrument mounting cleaning storage and shipment 2 2 Initial inspection NY WARNING To avoid hazardous electrical shock do not turn on the instrument when there are signs of shipping damage to any portion of it 2 3 Packing and Inspect the shipping container for damage Unpacking If the shipping container or cushion material is damaged it should be kept until the contents of the shipment have been checked for completeness and the instrument has been checked mechanically and electrically Verify the accessories availability in the shipping referring to the accessories check list enclosed with the Users Manual Notify any damage to the carrier personnel as well as
5. exists between them Any interruption or loosening of the protective earth ground conductor either inside or outside the unit or in an extension cable will cause a potential shock hazard that could result in personal injury 2 8 Power cable This instrument is equipped with a three wires power cable When connected to an appropriate AC power receptacle this cable grounds the instrument chassis 2 9 Environment The operating environment is specified to be within the following limitations e Temperature 10 to 40 C e Humidity lt 90 relative e Altitude lt 4000 meters The instrument should be stored in a clean dry environment The storage and shipping environment is specified to be within the following limitations e Temperature 40 to 50 C e Humidity lt 95 relative e Altitude lt 15000 meters 2 10 Return for service If the instrument should be returned to NARDA for service please complete the service questionnaire enclosed with the Users Manual and attach it to the instrument To minimize the repair time be as specific as possible when describing the failure If the failure only occurs under certain conditions explain how to duplicate the failure If possible reuse of the original packaging to ship the equipment is preferable In case other package should be used ensure to wrap the instrument in heavy paper or plastic Use a strong shipping container and use enough shock absorbing material around all sides of the
6. is a Safety Class I and Installation Category Il instrument according to IEC classification and has been designed to meet the requirements of EN61010 1 Safety Requirements for Electrical Equipment for Measurement Control and Laboratory Use This product has a Pollution Degree Il normally only non conductive pollution occurs Occasionally W however a temporary conductivity caused by condensation must be expected The information contained in this document is subject to change without notice KEY TO THE ELECTRIC AND SAFETY SYMBOLS You now own a high quality instrument that will give you many years of reliable service Nevertheless even this product will eventually become obsolete When that time comes please remember that electronic equipment must be disposed of in accordance X with local regulations This product conforms to the WEEE Directive of the European Union 2002 96 EC and belongs to Category 9 Monitoring and Control Instruments EE You can return the instrument to us free of charge for proper environment friendly disposal You can obtain further information from your local Narda Sales Partner or by visiting our website at www narda sts it Warning danger of electric shock Earth Read carefully the Operating Manual and its Unit Earth Connection instructions pay attention to the safety symbols D Earth Protection Ky Equipotential KEY TO THE SYMBOLS USED IN THIS DOCUMENT The DANGER sign draws attention to a potential
7. risk to a person s BY DANGER safety All the precautions must be fully understood and applied before proceeding The WARNING sign draws attention to a potential risk of damage to the WARNING apparatus or loss of data All the precautions must be fully understood and applied before proceeding The CAUTION sign draws attention against unsafe practices for the NY CAUTION apparatus functionality MF NOTE The NOTE draw attention to important information unu Note and symbols narda Safety Test Solutions Contents General safety considerations and instructions EC Conformity Certificate iii 1 General Information 1 1 Documentation aaa 1 4 INIFOGUCIION rile serait 1 3 Instrument itemS a 1 4 Optional accessories i 1 5 Main specificatiONS a 1 6 Front and rear panel ii 1 7 Functional description ii 2 Installation ZA AL polo NG Me EEE EE freni 2 2 Initial INSPECction ii 2 3 Packing and unpacking ees 2 4 Preparation for USE i 2 5 Installation Check liSt aaa 2 6 Line voltage selection iii 2 7 Fuse selection 7 7 7 enr nnne PPT 2 9 ETINIKFONMENL escssctuces testi ccnnstenicdnertnesnsecaentueedrostinewetceedete nana 2 10 Return for SErvice a
8. the NARDA Representative 2 4 Preparation for use This is a Safety Class equipment it is provided with a protective M WARNING earth terminal An uninterruptible safety earth ground must be provided from the main power source to the product input wiring terminals through the power cable or supplied power cable set Verify the safety earth ground functionality before operation 2 5 Installation Check list Before operation the following steps shall be taken e Check the line voltage to ensure the compatibility with the equipment settings e Verify that the fuse rating is appropriate for the line voltage used Before plugging PMM 3000 into the main supply line ensure that the LY CAUTION line voltage is in the range specified and that the appropriate fuse have been selected Document 3000EN 70206 1 41 NARDA 2007 Installation 21 4k narda Safety Test Solutions 2 6 Line voltage The line voltage can be changed from the rear panel switching the rotary selection switch to the right voltage according to your mains 90 135 V T 250 mA T Time delay slow blow 175 264 V T 125 mA T Time delay slow blow Before connecting this instrument ensure that an uninterruptible safety earth ground is provided from the main power source to the product protective earth connection If this instrument is to be M WARNING connected to other equipment or accessories prior to energizing i either unit verify that a common ground
9. 1 NARDA 2007 General Information 1 narda Safety Test Solutions 1 5 Main specifications Table 1 1 lists the PMM 3000 performance specifications The following conditions apply to all specifications e The PMM 3000 needs at least a 15 minutes warm up before to operate e The ambient temperature shall be from 10 C to 50 C TABLE 1 1 Technical specifications Frequency Range 10 kHz to 1 GHz Resolution 1 kHz freq lt 100 MHz 10 kHz freq gt 100 MHz Accuracy 50 ppm Level Range 80 to 10 dBm Resolution 0 1 dB Accuracy 1dB Level flatness 1 dB Output impedance 50 Q Connector N female Spectral purity Harmonic lt 30 dBc for level 0 dBm Non harmonic lt 50 dBc AM modulation Internal 400 or 1 kHz at 80 External 100 Hz to 10 kHz max 90 Input impedance gt 1kQ Connector BNC female Absolute maximum rating 10Vpp Pulse modulation Internal 200 Hz ON OFF ratio 100 MHz gt 70 dB 900 MHz gt 40 dB Frequency accuracy 10 Pulse mod 1 Hz Internal 1 Hz ON OFF ratio 900 MHz 0 dBm gt 70 dB Frequency accuracy 10 Remote control System interface RS 232 485 Connector DB9 User port RF Off Start stop test RF ON Display 4 lines LCD Power supply AC 115 230 VAC 30 VA 50 60 Hz DC 22 26 VDC Size 257 x 110 x 315 mm WxHxD Weight 4 5 kg 12 General Information narda Safety Test Solutions 1 6 Front and rear panel Fig 1 1 Front Panel
10. 5 To enable the To modulate the RF output you should enter the modulation menu From modulation the main menu you must push 110 The display will show Freg 90 012 MHz Level 10 0 dBm RF OFF MOD OFF MOD m 32 Operating Instruction A narda Safety Test Solutions Where the functions have the following meaning MOD to enable modulation mode ADD to define RS485 address 00 to go to third command row ESC to go back to main menu 3 1 6 Modulation choice Activating the function MOD the display will show all the modulation capabilities The menu will be Fregi 90 012 MHz Level 10 0 dBm RF OFF MOD OFF OFF E OK aa com rm Pushing the key ON you can go through the following choices e MOD 400 Hz e MOD 1 kHz e MOD PULSE e1 Hz PULSE e MOD EXT Confirm your choice pushing OK Pushing ESC you exit modulation mode of operation Operating Instruction 33 mA With the key ADD you can change the RS 485 address Activating it the 3 2 Setting RS 485 address 3 2 1 Selecting the Unit 3 2 2 Unit mode of operation 3 2 3 Selecting units menu will be set R5485 ADDRESS OK ESC ES KN Si MM Use key or to increase or decrease the address Push OK to confirm Push ESC to exit ADDRESS mode of operation From main menu activating twice the button O0 you enter the menu for changing the Unit and to us
11. A narda Safety Test Solutions an B Communications Company http www narda sts it Solutions S r l Socio Unico Fax 39 02 26998700 Sales amp Support Manufacturing Plant s NARDA pales amp Support tino Safety Via Leonardo da Vinci 21 23 Via Benessea 29 B NG ET Test 20090 Segrate MI ITALY 17035 Cisano sul Neva SV 2 Tel 39 0182 58641 E Tel 39 02 2699871 Fax 39 0182 586400 SINCERT User s Manual PMM 3000 WIDEBAND RF SIGNAL GENERATOR 10 KHZ 1000 MHz SERIAL NUMBER OF THE INSTRUMENT You can find the Series Number on the rear panel of the instrument Series Number is in the form 0000X00000 The first four digits and the letter are the Series Number prefix the last five digits are the Series Number suffix The prefix is the same for identical instruments it changes only when a configuration change is made to the instrument The suffix is different for each instrument Document 3000EN 70206 1 41 Copyright NARDA 2007 narda Safety Test Solutions NOTE If the instrument is used in any other way than as described in this Users Manual it may become unsafe Before using this product the related documentation must be read with great care and fully understood to W familiarize with all the safety prescriptions To ensure the correct use and the maximum safety level the User shall know all the instructions and recommendations contained in this document This product
12. Q LEV o o RF The main commands are FREQ to select the RF frequency LEV to select output level 00 to select the second commands row RF to turn On or Off the output power 3 1 2 Frequency setting Activating the function key under the FREQ you will enter the frequency menu that shows Fregi 90 012 MHz Level 10 0 dBm RF OFF MOD OFF r 7 OK To change the frequency value you should position the cursor under the decimal you want to change then using the key or you can decrease or increase the value When done confirm the selection pushing OK button IF you keep the or key depressed the selected value will decrease or decrease automatically Document 3000EN 70206 1 41 NARDA 2007 Operating Instruction 31 A i narda Safety Test Solutions 3 1 3 Level setting Activating the function key under the LEV you will enter the level menu that shows Fregi 90 012 MHz Level 10 0 dbm RF OFF MOD OFF gt OK Em KN Si Ou To change the output level value you should position the cursor under the decimal you want to change then using the key or you can decrease or increase the value When done confirm the selection pushing OK button 3 1 4 To enable the RF Pushing the RF function key you turn On or OFF the generator The display output will be Fregi 90 012 MHz Level 10 0 dBm RF ON MOD OFF FREQ LEV 0 0 RF 3 1
13. aa 2 11 Equipment cleaning aa 2 12 Hardware installatiON aaa Operation instructions Starting PMM 3000 aaa 1 Main menu display i 2 Frequency setting i EN EE lo RE ARE FR l 5 To enable the modulation cence eeaeees 3 1 6 Modulation choice a 3 2 Setting RS 485 address eee eeae teen ease 3 2 1 Selecting the Unit cece eee e eee eee eeeeeeeeees 3 2 2 Unit mode of Operation c cece ccc eee cena ee eeeeeeaes 3 2 0 SEIECUNGI UNS 42255555 3 3 Scan Mode of operation a SA LISCO TADES oaar 3 5 NULL Table Using a table eeeceeeeeseeee eee ees 3 6 Starting a sweep ee eee eee e sees esse eeaeeeaeeeanens 3 3 1 3 1 3 1 3 1 3 1 3 1 4 Programming 4 1 MM ROOUCTHO Nittis A 2 COMMUNICAUON 44470 8anaa KN ria 43 MOOO OE EE ae oe ie 4 4 PO OUC AAP PAA PAANAN Loro 4 6 PMM 3000 commands eee cent tenes eeeaeeenaeenaas 4 6 1 Frequency programming aasa 4 6 2 Modulation programming naaa 4 6 3 Level programming Li 4 6 4 RF OFF and RF ON i lt lt 9 Q D O pay Q D ch ch ch ma ma ASONOL ALLA O D Q D Lar TM QONNINNNN A NNN N N N N N N N N N U xo Q Dm WO Lo
14. e Europea 2002 96 EC ed appartiene alla categoria 9 strumenti di controllo Lo smaltimento in un ambiente adeguato pu avvenire anche attraverso la restituzione del prodotto alla NARDA senza sostenere alcuna spesa Pu ottenere ulteriori informazioni contattando i venditori NARDA o visitando il nostro sito Web www narda sts it Dear Customer thank you for purchasing a NARDA product You now own a high quality instrument that will give you many years of reliable service NARDA recognizes the importance of the Customer as reason of existence in this view any comment and suggestion you would like to submit to the attention of our service organization is kept in great consideration Moreover we are continuously improving our quality but we know this is a never ending process We would be glad if our present efforts are pleasing you Should one of your NARDA equipment need service you can help us serve you more effectively filling out this card and enclosing it with the product Nevertheless even this product will eventually become obsolete When that time comes please remember that electronic equipment must be disposed of in accordance with local regulations This product conforms to the WEEE Directive of the European Union 2002 96 EC and belongs to Category 9 Monitoring and Control Instruments You can return the instrument to us free of charge for proper environment friendly disposal You can obtain further information from your local NARDA Sa
15. e SCAN mode of operation The display will show Fregi 90 012 MHz Level 10 dBm RF OFF MOD OFF UNIT C J SCAN ESC ES ii N Pressing UNIT you get the following choices Freg 90 012 MHz Level 10 dbm RF OFF MOD OFF CNG C Pushing the CNG button you switch the unit from dBm to dBuV Push OK to confirm Operating Instruction i narda Safety Test Solutions A narda Safety Test Solutions 3 3 SCAN mode of PMM 3000 allows you to run immunity tests without to be controlled by any operation PC Using our immunity software SW02 radiated or SW06 conducted you can download from the PC up to three different correction tables For example the three test level according to your Standard From main menu pushing twice the O0 button you can enter the SCAN mode of operation Pushing SCAN button the display will be 3 4 List of tables 1 Table one 2 Table two 3 Table three 13 2 gt mm mm Co The above display examples shows the case where three different tables have been loaded The name of the tables 1 2 or 3 have been transferred from our software automatically You can not change them from PMM 3000 keyboard 3 5 NULL Table When you select a NULL Table no action is taken Using a table Selecting one of the three tables you get the following display with all commands to perform the sweeping over a frequency range defined by the selected table The displa
16. equipment to provide a firm cushion and prevent movement in the container To prevent damage during shipment in particular protect the front panel Seal the shipping container securely Mark the shipping container FRAGILE to encourage careful handling 22 Installation narda Safety Test Solutions 2 11 Equipment cleaning Use a non abrasive clean soft and dry cloth for equipment cleaning W CAUTION To clean the equipment do not use any solvent thinner turpentine acid acetone or similar matter to avoid damage to external enclosure 2 12 Hardware PMM 3000 is delivered ready to use Remove the signal generator from his Installation cardboard box and connect power cable to rear panel mains plug Push the main switch to ON position and wait few seconds Then PMM 3000 is ready to use Installation 23 4k narda Safety Test Solutions This page has been left blank intentionally Installation A narda Safety Test Solutions 3 Operation instructions 3 1 Starting PMM 3000 PMM 3000 has been designed with a user friendly interface to be used by EMC engineer as well by non skilled personnel 3 1 1 Main menu display All functions can be recalled by the four functional keys located on the bottom of LCD display When instrument is turned on the firmware initiate the internal testing procedure If everything is OK the display will show Freq 200 00 MHz Level 80 0 dBm RF OFF MOD OFF FRE
17. lation external modulation NO modulation to set the output level in dBm request to send back to PC the actual level to set RF off to set RF on request to send back to PC the RF status NARDA Sales amp Support Manufacturing Plant a oo a na rd a Safety Via Leonardo da Vinci 21 23 Via Benessea 29 B SS Test 20090 Segrate MI ITALY 17035 Cisano sul Neva SV F Safety Test Solutions coitions Tel 39 02 2699871 Tel 39 0182 58641 d an E Communications Company S r l Socio Unico Fax 39 02 26998700 Fax 39 0182 586400 Mod 18 1 http www narda sts it ISo gt e a E e Caro cliente grazie per aver acquistato un prodotto NARDA Sei in possesso di uno strumento che per molti anni ti garantir un alta qualit di servizio NARDA riconosce l importanza del Cliente come ragione di esistenza ciascun commento e suggerimento sottoposto all attenzione della nostra organizzazione tenuto in grande considerazione La nostra qualit alla ricerca del miglioramento continuo Se uno dei Suoi strumenti NARDA necessita di riparazione o calibrazione pu aiutarci a servirla pi efficacemente compilando questa scheda e accludendola all apparecchio Tuttavia anche questo prodotto diventer obsoleto In questo caso ti ricordiamo che lo smaltimento dell apparecchiatura deve essere fatto in conformit con i regolamenti locali Questo prodotto conforme alle direttive WEEE dell Union
18. les Partner or by visiting our website at www narda sts it M Servizio richiesto M Service needed O Solo taratura L Riparazione 1 Riparazione amp Taratura Taratura SIT Altro Calibration only LI Repair Repair amp Calibration Certified Calibration Other Ditta Company Indirizzo Address Persona da contattare Telefono Technical contact person Phone n Modello Numero di serie Equipment model Serial n M Accessori ritornati con l apparecchiatura O Nessuno LI Cavo i LI Cavo di alimentazione Altro M Accessories returned with unit L None Cable s LI Power cable Other M Sintomi o problemi osservati M Observed symptoms problems M Guasto O Fisso C Intermittente Sensibile a O Freddo Caldo LJ Vibrazioni LI Altro M Failure O Continuous LI Intermittent Sensitive to LI Cold L Heat L Vibration L Other Descrizione del guasto condizioni di funzionamento Failure symptoms special control settings description Se l unit parte di un sistema descriverne la configurazione If unit is part of system please list other interconnected equipment and system set up Suggerimenti Commenti Note Suggestions Comments Note
19. nclosed with this manual are e a service questionnaire to send back to NARDA in case of equipment service is needed e an accessories check list to verify all accessories enclosed in the packaging 1 2 Introduction PMM 3000 is a wide band RF signal generator covering from 10 kHz to 1000 MHz frequency range The generator is fully automatic and programmable via RS232 485 serial port Due to his performances it is an ideal tool for all EMC immunity test applications The instrument has several features not even included into high cost generator such as internal pulse modulation sweeping and correction table downloading 1 3 Instrument items The PMM 3000 includes the following items RF signal generator N Bnc adapter RS232 cable RS232 adapter 9 25 pin Power supply cable Operating Manual 1 4 Optional PMM 3000 can be used with several accessories accessories The possible options are e PMM 6000N RF 10W 15W amplifier 9 kHz 230 MHz PMM 6600 RF Power meter for EMC application PMM 6600D Slave power meter M75 IFI 75W 10 kHz 230 MHz F 2031 23 Injiection Clamp F 2031 23 DCN Decoupling Network F 120 9A Injection Probe F 33 1 Current Monitor Wide range of CDNs 150 50 Calibration kit for CDNs Load 50 50 Ohm load 6 dB 50 Ohm fixed attenuators 10 15 30 100 W Coupling Decoupling Networks EM current injection clamp RF power meter PMM SW06 Immunity software for IEC 1000 4 6 and ENV50141 Document 3000EN 70206 1 4
20. round wire Any interruption or loosening of the ground wire or of a connecting power cable inside or outside the device will cause a potential risk for the safety of the personnel Ground connections must not be interrupted intentionally To prevent the possible danger of electrocution do not remove any covers panels or guards installed on the device and refer only to NARDA Service Centers if maintenance should be necessary To maintain adequate protection from fire hazards replace fuses only with others of the same type and rating Follow the safety regulations and any additional instructions in this manual to prevent accidents and damages Safety consideration narda Safety Test Solutions EC Conformity Certificate in accordance with the directives EMC 89 336 EEC and low voltage 73 23 EEC This is to certify that the product PMM 3000 Wideband RF Signal Generator 10 kHz 1 GHz Produced by NARDA S r l Safety Test Solution Via Benessea 29 B 17035 Cisano sul Neva SV ITALY complies with the following European Standards Safety EN 61010 1 1993 A2 1995 EMC EN 55011 EN 61000 3 2 EN 61000 3 3 EN 50082 1 This product complies with the requirements of the Low Voltage Directive 73 23 EEC amended by 93 68 EEC and the EMC Directive 89 336 EEC amended by 92 31 EEC 93 68 EEC 93 97 EEC NARDA S r l EC Conformity narda Safety Test Solutions 1 General Information 1 1 Documentation E
21. uilt in automatic tool identify the type of communication used and shows it on LCD display Typical communication is implemented at 9600 baud with 8 bit one stop bit and no parity 4 3 Protocol Be aware that only the PC can send the commands PMM 3000 will answer when is inquired only Communication is done at 9600 Baud with 8 bit 1 stop bit and no parity The communication uses strings with variable byte width The characters used inside the strings are in ASCII format 00 127 at 7 bit The most significant bit are ignored in reception and put to 0 during transmission CK II Every strings starts with the special character and stops with 4 4 Address When you drive PMM 3000 via RS485 the address is embedded with the two digit following the first character The address can be assigned from 01 to 99 When using RS232 this two character are ignored The host computer does not have any address because it can receive the message only Therefore there is no direct communication between host and the instruments In order to impose the address to PMM 3000 you should follow the procedure described on pag 3 4 4 5 Format All messages are content between and characters for strings send to Host PC and between address and for strings send to the instrument The string sent to the PMM 3000 has the following format iic c Where Start character il RS485 address C C Command
22. y will be otart Fr 60 MHz stop Fr 1000 00 MHz Step 1 0 NOTE MORE EE ii pm The new functions are NOTE shows the table comment defined during table creation MORE shows the other table parameters i e dwell time limit modulation GO to start the sweep ESC to go to the previous menu Operating Instruction 35 A narda Safety Test Solutions 3 6 Starting a sweep Activating the GO command PMM 3000 will start sweeping using all parameters defined into the transferred table The display will shows Freq a0 MHz Level 17 2 dbm RF N MODI kHz HALT The sweepings can be halted with HALT command and then the user can manually change all the RF generator parameters Using STOP you can definitely stop you sweep When pressing HALT the user can continue form the nearest frequency associated with the table and the software will use same level defined into the table Operating Instruction narda Safety Test Solutions 4 How to program 4 1 Introduction PMM 3000 has been designed to be programmed through his serial port using either RS232 as well RS485 When using RS232 you can use only one instrument connected to PC serial port If using RS485 you can connect up to 31 instruments to the same PC serial port PMM 3000 uses the same connector for both communications 4 2 Communication Half duplex communication is implemented The logical levels are identical for RS232 and RS485 A b
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