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Outline

The Sound Level Meter NA-28 incorporates a USB interface. This interface allows

setting measurement parameters and controlling measurement operation of the NA-

28 from a computer by sending prescribed commands. It also allows sending current

measurement data from the NA-28 to the computer.

Note

About transfer principle

The NA-28 is connected to the computer by COM
port connection using a USB interface. Therefore, it
is not necessary to set baud rate, data word length,
stop bit, parity check, and fl ow control.

Содержание NA-28

Страница 1: ...3 20 41 Higashimotomachi Kokubunji Tokyo 185 8533 Japan http www rion co jp english SERIAL INTERFACE MANUAL Sound Level Meter NA 28...

Страница 2: ......

Страница 3: ...al Interface Manual this document Describes communication with a computer using the serial interface built into the Sound Level Meter NA 28 The manual covers the com munication protocol use of control...

Страница 4: ...ii...

Страница 5: ...unit to a computer via a USB link and how to install the USB driver The chapter also contains general information about usage Chapter 2 Basic Syntax Explains USB related syntax and other items Chapte...

Страница 6: ...Installation procedure 5 Connection to the computer 10 Disconnection from the computer 11 Checking the virtual COM port 12 Chapter 2 Basic Syntax 15 Outline 16 Local Mode Remote Mode 17 Transfer Code...

Страница 7: ...v Chapter 3 Command Reference 31 Commands 32 Command List 32 Command Format 38 Error Codes 39 Parameters 39 Command Send Example 40 Command Description 41 Examples for Control Via External Commands 86...

Страница 8: ...vi...

Страница 9: ...ction to a Computer 3 Operating Environment 4 Installing the USB Driver 5 Installation procedure 5 Connection to the computer 10 Disconnection from the computer 11 Checking the virtual COM port 12 Cha...

Страница 10: ...2 About USB Functionality The NA 28 supports operation control and data transfer via a USB connection Con nection of multiple units is not supported...

Страница 11: ...o connect the USB port on the bottom of the Sound Level Meter NA 28 to the computer using a generic USB cable The USB cable is an optional DC 5 6V TRIG IN COMP OUT AC DC OUTPUT USB USB port Open cover...

Страница 12: ...4 Operating Environment Supported Operating Systems Microsoft Windows XP Professional 32 bit Microsoft Windows 7 Professional 32 bit 64 bit Microsoft Windows 8 Pro 32 bit 64 bit...

Страница 13: ...poration web site and install this driver on the computer to be used with the NA 28 The driver will create a virtual COM port on the computer Installation procedure When connecting the NA 28 and the c...

Страница 14: ...6 Installing the USB Driver Follow the wizard to complete the installation Screens during installation are as follows...

Страница 15: ...ust be completed before connecting the USB cable 3 Connect the NA 28 to the computer with a USB cable Important Connect the NA 28 directly with the USB cable to the computer If the NA 28 is connected...

Страница 16: ...r detects the NA 28 Found New Hardware Wizard is started up Proceed following the wizard Select No not this time and click on Next In case of Windows 7 and Windows 8 When the computer detects the NA 2...

Страница 17: ...k on Finish The driver installation creates a virtual COM port in the computer For infor mation on how to verify that the installation was successful see the section Checking the virtual COM port on p...

Страница 18: ...r for the first time refer to page 3 1 Turn power to the NA 28 on select I O Input Output and set USB communication to ON 2 Connect the NA 28 to the computer with a USB cable Important Be sure to set...

Страница 19: ...be followed when discon necting the unit 1 Click on the Safely remove hardware icon in the right section of the taskbar and select Safely remove USB Mass Storage Device Drive 1 1 The drive letter E i...

Страница 20: ...the USB Driver Checking the virtual COM port 1 After installing the driver set USB Communication to ON at the NA 28 and connect the USB cable 2 Open the Device Manager Hardware tab under Properties i...

Страница 21: ...T The indication RION USB to RS232C Converter Virtual COM Port should be shown as COM port name If this is not shown check the connection be tween the NA 28 and the computer step 1 If there is an over...

Страница 22: ...14 MEMO...

Страница 23: ...es 18 Transfer Format 19 ID ID Number 20 ATTR Block Attribute 21 Block Reception Processing 22 Command Types 22 Error Processing 23 Transfer Types 24 Communication Cutoff 29 Power Save Mode 29 Power O...

Страница 24: ...n of the NA 28 from a computer by sending prescribed commands It also allows sending current measurement data from the NA 28 to the computer Note About transfer principle The NA 28 is connected to the...

Страница 25: ...it is turned on Communication is also possible in this mode Remote mode This mode is for communication only The NA 28 cannot be operated with the keys on the unit The indication REMOTE is shown on the...

Страница 26: ...NQ 05H Enquire ACK 06H Acknowledge NAK 15H Not acknowledge STX 02H Start block ETX 03H End block CR 0DH Terminator 1st character LF 0AH Terminator 2nd character SUB 1AH Stop Special codes ATTR Control...

Страница 27: ...elimiter Acknowledge response block Computer or NA 28 STX ID ATTR ETX CR LF 1 1 1 N 1 1 1 1 byte ATTR Response data A or Q 00H Not Acknowledge response block Command from NA 28 STX ID ATTR ETX CR LF 1...

Страница 28: ...the target de vice for communication In a send block from the measuring device the ID number identifies the device itself Broadcast ID number 00 is reserved for broadcasting a command from the compute...

Страница 29: ...ransfer Format ATTR Block Attribute The block attribute information is added by the sender to facilitate process ing of the block at the receiving end STX ID ATTR ETX CR LF 1 1 1 1 1 1 1 byte ATTR SUB...

Страница 30: ...etting command This type of command serves for changing the sound level meter status or measurement parameters Only some commands of this type will produce a response from the sound level meter For co...

Страница 31: ...excluding ID number Start block again from that point Command processing errors Block format is correct but command interpretation or processing has re sulted in an error Error item Contents Processi...

Страница 32: ...r sequence The setting sequence can be selected to have a response or not The sample sequences shown below generally assume that the block from the computer comprises the ID of the sound level meter C...

Страница 33: ...here processing is completed For example for the Execute store command it is the point where the store execution has started Computer Sound level meter Command block Block normal Acknowledge block Pro...

Страница 34: ...tely after receiving the request command Irregular execution When a block or command processing error has occurred a Not Acknowl edge response is sent Computer Sound level meter Command block Block no...

Страница 35: ...top the process the stop request command SUB is sent from the com puter Any other command is disregarded by the sound level meter The block sending process continues indefinitely as long as the SUB co...

Страница 36: ...essing Irregular sequence When an error generating a response on the block level has occurred the following sequence occurs Computer Sound level meter Any block Block error or BCC error Not Acknowledg...

Страница 37: ...unit enters the sleep state after the current block has been sent In the sleep state the sound level meter does not send or accept commands Power Off During power off processing communication is termi...

Страница 38: ...cter inter val Max 100 ms Interval until sound level meter enters idling state after send ing data Max 200 ms After receiving data from the sound level meter wait at least 200 ms before sending the ne...

Страница 39: ...ontents Commands 32 Command List 32 Command Format 38 Error Codes 39 Parameters 39 Command Send Example 40 Command Description 41 Examples for Control Via External Commands 86 Chapter 3 Command Refere...

Страница 40: ...M RTA key 41 DSP Set display data S R MODE key 42 GRP Toggle graphical numeric display S R GRP NUM key 43 WGT Set frequency weighting charac teristic S R FREQ WEIGHT key 43 TMC Set time weighting char...

Страница 41: ...SET Get all measurement parameters R N A 50 SYS Apply setup file S System Save Load Set tings 54 Data related commands Command Function Corresponding key menu item Page LTI Elapsed measurement time R...

Страница 42: ...ion commands Command Function Corresponding key menu item Page CAL Calibration status S R CAL STORE key 62 CBM Calibration volume S R keys during calibra tion 62 Memory related commands Command Functi...

Страница 43: ...l display 66 MDC Clear stored data from internal memory S Recall CAL 66 SPM Sleep mode S R Measurement Trigger mode Sleep mode 67 System commands Command Function Corresponding key menu item Page BAT...

Страница 44: ...ment Trigger mode 72 LTC Trigger channel for SLM mode S R Measurement Trigger mode 73 TTR Trigger time S R Measurement Trigger mode 74 CMP Comparator S R Input Output Compara tor 75 CML Comparator lev...

Страница 45: ...R Input Output Beep 79 IDX Index S R Input Output Index 80 Communication control commands Command Function Corresponding key menu item Page RMT Remote mode S R N A 81 EST Error information R N A 81 Da...

Страница 46: ...has a parameter the parameter follows the command It can be appended to the command either directly or with a separating space p1 Valid _ p1 Valid When a command has several parameters the parameters...

Страница 47: ...e not implemented _1 Valid _10 Valid _01 Not valid Error Codes Error code Meaning 0001 Undefined command or other command problem 0002 Parameter number or value not valid 0003 Processing not possible...

Страница 48: ...ssed as 01H ID number 1 to FFH ID number 255 Note Do not use ASCII 01 here Express 01 in 2 digit hexadecimal notation i e 01H 3 Attribute C for command Always C 4 Command 3 alpha characters 5 Paramete...

Страница 49: ...currently in Lp mode except pause In other cases error 0003 is returned Setting command IMD p1 Parameter Content p1 0 SLM sound level meter mode p1 1 OCT octave analysis mode p1 2 1 3OCT 1 3 octave an...

Страница 50: ...Lmax screen p1 4 Lmin screen p1 5 LN1 screen p1 6 LN2 screen p1 7 LN3 screen p1 8 LN4 screen p1 9 LN5 screen p1 10 List screen p1 11 Time Level screen Specifying a screen that is set to OFF on the Dis...

Страница 51: ...ame as for setting command WGT Set frequency weighting characteristic corresponds to FREQ WEIGHT key operation main Sub channel measurement Fre quency weighting sub Only valid if the unit is currently...

Страница 52: ...ause In other cases error 0003 is returned Setting command TMC p1 p2 Parameter Content p1 p2 0 F Fast p1 p2 1 S Slow p1 p2 2 10 ms p2 3 I Impulse p1 specifies the time weighting for the main channel a...

Страница 53: ...ently in Lp mode except pause In other cases error 0003 is returned Setting command RNG p1 Parameter Content p1 0 80 dB range p1 1 90 dB range p1 2 100 dB range p1 3 110 dB range p1 4 120 dB range p1...

Страница 54: ...inutes p2 2 h Hours The maximum allowable setting time is 24 hour when store mode is Manual or Auto2 Request command MTI Response data d1 d2 Return value Content Same as for setting command d1 specifi...

Страница 55: ...Delay time seconds Request command DLT Response data d1 Return value Content Same as for setting command MAX Lmax Lmin type corresponds to Measurement Lmax Lmin type Only valid if the unit is currentl...

Страница 56: ...command also if it is in sound level meter mode Request command MXD Response data d1 Return value Content Same as for setting command LNM LN mode corresponds to Measurement LN mode Only valid if the...

Страница 57: ...ion p1 1 ON Request command WSC Response data d1 Return value Content Same as for setting command DFC Diffuse sound field compensation corresponds to Measurement Diffuse sound field compensation Only...

Страница 58: ...d2 of WGT command d4 Main channel time weighting characteristic Corresponds to d1 of TMC command d5 Sub channel time weighting characteristic Corresponds to d2 of TMC command d6 Level range Correspond...

Страница 59: ...PI command d22 LN2 display Corresponds to d6 of DPI command d23 LN3 display Corresponds to d7 of DPI command d24 LN4 display Corresponds to d8 of DPI command d25 LN5 display Corresponds to d9 of DPI c...

Страница 60: ...r mode Corresponds to TRG command d40 Trigger level Corresponds to d1 of LTR command d41 Trigger slope Corresponds to d2 of LTR command d42 Trigger band octave Corresponds to d1 of LTB command d43 Tri...

Страница 61: ...ponds to CMP command d55 Comparator level Corresponds to CML command d56 Comparator band octave Corresponds to d1 of CMB command d57 Comparator band top center bottom Corresponds to d2 of CMB command...

Страница 62: ...pause In other cases error 0003 is returned Setting command SYS p1 Parameter Content p1 1 to 5 Setup file number Note that if USB communication is set to OFF in the specified setup file communication...

Страница 63: ...command LTI Response data d1 d2 d3 Return value Content d1 Hours d2 Minutes d3 Seconds In case of the store mode is Auto1 or Auto2 the response data as follows Response data d1 d2 d3 d4 Return value C...

Страница 64: ...rement setting Only valid if the unit is currently in Lp mode except pause In other cases error 0003 is returned Setting command SCH p1 Parameter Content p1 0 OFF sub channel not displayed p1 1 ON sub...

Страница 65: ...set here will affect the DSP command Setting command DPI p1 p2 p3 p11 Parameter Content p1 to p11 0 OFF p1 to p11 1 ON p1 Leq screen p2 LE screen p3 Lmax screen p4 Lmin screen p5 LN1 screen p6 LN2 sc...

Страница 66: ...and LXI Response data d1 d2 d3 d4 d5 Return value Content Same as for setting command ADP Sub channel additional processing corresponds to Sub channel measurement Lpeak Ltm5 Only valid if the unit is...

Страница 67: ...ble Do not specify this p1 2 16 Hz band p1 3 31 5 Hz band p1 4 63 Hz band p1 5 125 Hz band p1 6 250 Hz band p1 7 500 Hz band p1 8 1 kHz band p1 9 2 kHz band p1 10 4 kHz band p1 11 8 kHz band p1 12 16...

Страница 68: ...ent while a processing measurement is in progress processing will restart Request command SRT Response data d1 Return value Content d1 1 Processing measurement d1 0 Processing measurement stopped or a...

Страница 69: ...just ment mode the command is not valid and error 0003 is returned During auto store the command is not valid and error 0003 is re turned Setting command PSE p1 Parameter Content p1 1 Activate pause p...

Страница 70: ...Response data d1 Return value Content Same as for setting command CBM Calibration volume corresponds to key operation during calibration Only valid if the unit is currently in calibration mode In othe...

Страница 71: ...t is currently in Lp mode except pause In other cases error 0003 is returned This specifies the name of the store folder on the CF card Setting command SNS p1 Parameter Content p1 0000 to 9999 Numeric...

Страница 72: ...0 10 ms to 1000 ms in 10 ms steps p1 0 Leq 1s use 0 to specify 1 second Leq p2 0 100 ms in sound level meter mode only 0 can be specified In analyzer mode sampling cycle is p1 In sound level meter mod...

Страница 73: ...if the store mode is not manual Request command ADR Response data d1 Return value Content d1 1 to 1000 When unit is in manual store mode When the unit is not in manual store mode an indeterminate valu...

Страница 74: ...n value Content d1 0 No CF card inserted d1 1 CF card inserted d1 2 CF card being checked There is no setting command MDC Clear stored data from internal memory corresponds to Recall Delete selected d...

Страница 75: ...is also disabled and no commands will be accepted Use of this command therefore is usually not recommended The command is only valid if the unit is currently in Lp mode except pause In other cases er...

Страница 76: ...d CLK Current date time corresponds to System Current Date Time The setting command is only valid if the unit is currently in Lp mode except pause In other cases error 0003 is returned The request com...

Страница 77: ...remain ON All other settings except USB communication are returned to the default condition The unit index is incremented by 1 Keep this in mind if you are using an index other than 1 VER Version no c...

Страница 78: ...ontent p1 0 OFF p1 1 MAIN p1 2 SUB Request command ACO Response data d1 Return value Content Same as for setting command DCO Select DC output corresponds to Input Output DC output Only valid if the un...

Страница 79: ...e Content Same as for setting command LTR Trigger level corresponds to Measurement Trigger mode Trigger level setting Only valid if the unit is currently in Lp mode except pause In other cases error 0...

Страница 80: ...MAIN AP p1 2 16 Hz p1 3 31 5 Hz p1 4 63 Hz p1 5 125 Hz p1 6 250 Hz p1 7 500 Hz p1 8 1 kHz p1 9 2 kHz p1 10 4 kHz p1 11 8 kHz p1 12 16 kHz p2 0 Bottom band p2 1 Center band p2 2 Top band To specify a 1...

Страница 81: ...r mode Trigger band setting Only valid if the unit is currently in Lp mode except pause In other cases error 0003 is returned Setting command LTC p1 Parameter Content p1 0 SUB AP p1 1 MAIN AP Request...

Страница 82: ...to 31 Start Day p3 0 to 23 Start Hours p4 0 to 59 Start Minutes p5 1 to 12 End Month p6 1 to 31 End Day p7 1 to 23 End Hours p8 0 to 59 End Minutes p9 0 Trigger interval OFF p9 1 Trigger interval 5 m...

Страница 83: ...0 OFF p1 1 ON Request command CMP Response data d1 Return value Content Same as for setting command CML Comparator level corresponds to Input Output Comparator Comparator level setting Only valid if...

Страница 84: ...4 63 Hz p1 5 125 Hz p1 6 250 Hz p1 7 500 Hz p1 8 1 kHz p1 9 2 kHz p1 10 4 kHz p1 11 8 kHz p1 12 16 kHz p2 0 Bottom band p2 1 Center band p2 2 Top band To specify a 1 3 octave band use p1 to specify t...

Страница 85: ...meter Content p1 0 SUB AP p1 1 MAIN AP Request command CMC Response data d1 Return value Content Same as for setting command RMC Remote control corresponds to Input Output Remote control Only valid if...

Страница 86: ...pa ol p1 4 French Request command LNG Response data d1 Return value Content Same as for setting command BLA Backlight auto off interval corresponds to Input Output Back light auto off Only valid if th...

Страница 87: ...BLB p1 Parameter Content p1 0 Dark p1 1 Bright Request command BLB Response data d1 Return value Content Same as for setting command BEP Beep tone corresponds to Input Output Beep Only valid if the u...

Страница 88: ...use In other cases error 0003 is returned Setting command IDX p1 Parameter Content p1 1 to 255 Index value When changing the index setting keep in mind that the new index will have to be specified in...

Страница 89: ...inactive regardless of its setting When remote mode has been set to Off 0 the operation keys on the unit are active and the infrared remote control operates according to its setting Setting command R...

Страница 90: ...ain channel LN1 d7 xxx x Main channel LN2 d8 xxx x Main channel LN3 d9 xxx x Main channel LN4 d10 xxx x Main channel LN5 d11 xxx x Sub channel Lp d12 xxx x Sub channel Leq d13 xxx x Sub channel LE d14...

Страница 91: ...d information 1 Yes 0 No d15 0 or 1 Under range information 1 Yes 0 No When sub channel display is set to OFF d1 is returned as _ with a leading space 1 3 octave analyzer mode Response data d1 d2 d37...

Страница 92: ...kHz OCT d13 16 kHz OCT d14 xxx x 12 5 Hz 1 3OCT d15 xxx x 16 Hz 1 3OCT d16 xxx x 20 Hz 1 3OCT d44 xxx x 12 5 kHz 1 3OCT d45 16 kHz 1 3OCT d46 20 kHz 1 3OCT d47 0 or 1 Overload information 1 Yes 0 No d...

Страница 93: ...d2 xxx x Main channel Leq d3 xxx x Main channel Lmax d4 xxx x Main channel Lmin d5 xxx x Sub channel Lp d6 xxx x Sub channel Leq d7 xxx x Sub channel Lmax d8 xxx x Sub channel Lmin d9 0 or 1 Overload...

Страница 94: ...setting was made properly using a request command after sending a setting command is recommended Refer to the page 40 for sending a command format Example Get sound level Power ON cannot be controlle...

Страница 95: ...20 to 80 dB Measurement time 10 sec Power ON Settings WGT1_ Main C TMC0_ Main F RNG0 20 to 80 dB MTI10_0 10 s DPI1_1 Set Leq to On 11 parameters must be set DSP1 Show Leq value on display SRT1 Start...

Страница 96: ...inserting a CF card Settings WGT1_ Main C TMC0_ Main F RNG5 40 to 130 dB MTI5_1 5 m SMD1 AUTO1 SNS0001 File name PLP100_ 100 msec Establish the above settings to prepare the Auto1 measurement STO1 St...

Страница 97: ......

Страница 98: ...No 50842 13 02...

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