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About This Manual

This manual describes how to install, configure, and operate the National Instruments
GPIB-120B.

Related Documentation

The following documents contain information that you may find helpful as you read this manual:
•

ANSI/IEEE Standard 488.1-1987,

IEEE Standard Digital Interface for Programmable

Instrumentation

•

ANSI/IEEE Standard 488.2-1992,

IEEE Standard Codes, Formats, Protocols, and

Common Command

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Содержание GPIB-120B

Страница 1: ...GPIB GPIB 120B User Manual GPIB 120B User Manual February 2019 371851C 01...

Страница 2: ...port phone numbers email addresses and current events National Instruments Corporate Headquarters 11500 North Mopac Expressway Austin Texas 78759 3504 USA Tel 512 683 0100 For further support informat...

Страница 3: ...TLE OR NON INFRINGEMENT AND ANY WARRANTIES THAT MAY ARISE FROM USAGE OF TRADE OR COURSE OF DEALING NI DOES NOT WARRANT GUARANTEE OR MAKE ANY REPRESENTATIONS REGARDING THE USE OF OR THE RESULTS OF THE...

Страница 4: ...ependent from NI and have no agency partnership or joint venture relationship with NI Patents For patents covering NI products technology refer to the appropriate location Help Patents in your softwar...

Страница 5: ...e encouraged to try to correct the interference by one or more of the following measures Reorient the antenna of the receiver the device suffering interference Relocate the transmitter the device gene...

Страница 6: ...System Controller Detection SC 2 1 Active Controller Detection AC 2 1 Source Handshake Detection SH 2 2 Data Transfer Modes 2 2 Selecting a Data Transfer Mode 2 2 Unbuffered Mode 2 2 Buffered Mode 2 2...

Страница 7: ...Contents viii ni com Appendix D NI Services Index...

Страница 8: ...struments GPIB 120B Related Documentation The following documents contain information that you may find helpful as you read this manual ANSI IEEE Standard 488 1 1987 IEEE Standard Digital Interface fo...

Страница 9: ...xpander connects two GPIB IEEE 488 bus systems in a functionally transparent manner The two bus systems are electrically isolated from each other The two bus systems are also isolated from the power s...

Страница 10: ...limit from 15 devices to 28 devices The cable length limit for the system is also increased an additional 4 m to 20 m depending on the number of devices on that side of the expansion All signal expan...

Страница 11: ...18 VDC 9 W power supply Standard GPIB cables to connect both sides of the GPIB 120B to buses on either side Optional Equipment Contact National Instruments to order any of the following optional equi...

Страница 12: ...it Contact National Instruments for instructions Retain the shipping material for possible inspection by carrier or reshipment of the equipment 3 Verify that the voltage you will be using is in the in...

Страница 13: ...ional when you power on the GPIB 120B and your instruments are connected Where there is GPIB activity keep at least two thirds of the devices on both buses powered on System Controller Detection SC Af...

Страница 14: ...he following descriptions of each mode Unbuffered Mode In unbuffered mode each data byte is transmitted using the GPIB double interlocked handshaking protocol For long data streams transfers are slowe...

Страница 15: ...expander is in the desired position before powering on the unit Data Direction Control Bus B sends the data lines to Bus A if the Bus B Source Handshake state is true or if a Controller on Bus A is c...

Страница 16: ...ary side finishes a message is sent to finish it on the secondary side where the poll finishes about 400 ns later Therefore if the secondary side of the GPIB 120B waited until the end of its parallel...

Страница 17: ...our 12 VDC power supply into an acceptable electrical outlet 100 240 VAC Plug the other end of the power cord into the power supply Connect the 12 VDC output of the power supply into the GPIB 120B rea...

Страница 18: ...interface system including device dependent messages and interface messages Device dependent messages also called data or data messages contain device specific information such as programming instruct...

Страница 19: ...or addressed Talker or Listener must be changed The Controller function is usually handled by a computer With the GPIB interface board and its software your personal computer plays all three roles Co...

Страница 20: ...ne Description NRFD not ready for data Listening device is ready not ready to receive a message byte Also used by the Talker to signal high speed GPIB transfers NDAC not data accepted Listening device...

Страница 21: ...20 21 22 23 24 1 2 3 4 5 6 7 8 9 10 11 12 DIO5 DIO6 DIO7 DIO8 REN GND TW PAIR W DAV GND TW PAIR W NRFD GND TW PAIR W NDAC GND TW PAIR W IFC GND TW PAIR W SRQ GND TW PAIR W ATN SIGNAL GROUND DIO1 DIO2...

Страница 22: ...of devices on the bus and the physical distance between devices The following restrictions are typical A maximum separation of 4 m between any two devices and an average separation of 2 m over the ent...

Страница 23: ...remote programming For more information about these messages refer to the ANSI IEEE Standard 488 1 1987 IEEE Standard Digital Interface for Programmable Instrumentation Table B 1 Multiline Interface...

Страница 24: ...31 US CFE 3F 63 UNL 40 64 MTA0 60 96 MSA0 PPE 41 65 A MTA1 61 97 a MSA1 PPE CFG1 42 66 B MTA2 62 98 b MSA2 PPE CFG2 43 67 C MTA3 63 99 c MSA3 PPE CFG3 44 68 D MTA4 64 100 d MSA4 PPE CFG4 45 69 E MTA5...

Страница 25: ...121 y MSA25 PPD 5A 90 Z MTA26 7A 122 z MSA26 PPD 5B 91 MTA27 7B 123 MSA27 PPD 5C 92 MTA28 7C 124 MSA28 PPD 5D 93 MTA29 7D 125 MSA29 PPD 5E 94 MTA30 7E 126 MSA30 PPD 5F 95 _ UNT 7F 127 DEL Multiline I...

Страница 26: ...combination of star or linear pattern Performance Characteristics Maximum transfer rate Buffered mode 1 25 Mbytes s Unbuffered mode 450 kbytes s Interlocked IEEE 488 handshake Maintained across the e...

Страница 27: ...y 2500 VDC dielectric withstand 5 s max Input voltage range 10 18 VDC Current consumption 12 V 300 mA typical 500 mA maximum Fuse rating and type F 2 2 A 125 V surface mount 12 VDC Power Supply Shippe...

Страница 28: ...dity range 5 to 95 noncondensing Tested in accordance with IEC 60068 2 56 Shock and Vibration Operational shock 30 g peak half sine 11 ms pulse Tested in accordance with IEC 60068 2 27 Test profile de...

Страница 29: ...threaded inserts for mounting options 6 000 in 152 4 mm 1 120 in 28 45 mm 0 120 in 3 05 mm 1 875 in 47 63 mm 2 250 in 57 15 mm 0 800 in 20 32 mm 3 682 in 93 53 mm 1 441 in 36 61 mm 4 x 4 40 Threaded I...

Страница 30: ...rds applied to assess the EMC of this product refer to the Product Certifications and Declarations section Note For EMC compliance operate this device with shielded cabling CE Compliance This product...

Страница 31: ...ormation not included in this document Waste Electrical and Electronic Equipment WEEE EU Customers At the end of the product life cycle all NI products must be disposed of according to local laws and...

Страница 32: ...y your systems accuracy and reliability requirements and provides warranty sparing and calibration services to help you maintain accuracy and minimize downtime over the life of your system Visit ni co...

Страница 33: ...tions Engineers make sure every question submitted online receives an answer Software Support Service Membership The Standard Service Program SSP is a renewable one year subscription included with alm...

Страница 34: ...characteristics C 2 electromagnetic compatibility C 5 environmental management specifications C 5 equipment optional 1 3 extension system typical logical configuration figure 1 2 physical configuratio...

Страница 35: ...s C 1 physical and electrical characteristics A 3 physical characteristics C 3 power on 2 1 product certifications and declarations C 5 R rack mount kit figure 1 3 related documentation ix S safety sp...

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