National Instruments NI-9218 Channel Analogue Input Module
spésifikasi
- Ngaran produk: NI-9218
- Jenis Panyambung: LEMO sareng DSUB
- Jinis pangukuran: Diwangun-di rojongan pikeun sagala rupa jenis
- Sénsor éksitasi: Pilihan 12V éksitasi
Jenis Panyambung
NI-9218 gaduh langkung ti hiji jinis konektor: NI-9218 sareng LEMO sareng NI-9218 sareng DSUB. Iwal mun tipe konektor dieusian, NI-9218 nujul kana duanana jenis konektor.
NI-9218 Pinout
Signals by Measurement Type
| Modus | Pin
1 |
|||||||||
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | |
| ± 16 V | EX+ | — | AI-, EX- | — | — | AI+ | — | — | — | — |
| ± 65 mV | EX+ 2 [2] | — | EX- [2] | — | — | AI+ | AI- 3 | — | — | — |
| pinuh-
Sasak |
EX+ [2] | — | EX- [2] | RS+ | RS- | AI+ | AI- | SC | SC | — |
| IEPE | — | AI+ | AI- | — | — | — | — | — | — | — |
| TEDS | — | T+ 4 | T- | — | — | — | — | — | — | T+ 5 |
Pedaran Sinyal
| Sinyal | Katerangan |
| AI+ | Positive analogue input signal connection |
| AI- | Negative analogue input signal connection |
| EX+ | Positive sensor excitation connection |
| EX- | Negative sensor excitation connection |
| RS+ | Positive remote sensing connection |
| RS- | Negative remote sensing connection |
| SC | Shunt calibration connection |
| T+ | TEDS data connection |
| T- | TEDS return connection |
Jinis Pangukuran
NI-9218 nyayogikeun dukungan anu diwangun pikeun jinis pangukuran di handap ieu.
- ± 16 V
- ± 65 mV
- Full-Bridge
- IEPE
- NI-9218 with LEMO only.
- Optional sensor excitation.
- Tie to pin 3.
- TEDS Class 1 data connection.
- TEDS Class 2 data connection.
Tip NI recommends using the NI-9982 screw-terminal adapter when using built-in measurement types on the NI-9218.
NI-9218 nyayogikeun dukungan tambahan pikeun jinis pangukuran di handap ieu nalika nganggo adaptor pangukuran-spésifik.
- ±20 mA, requires the NI-9983
- ±60 V, requires the NI-9987
- Half-Bridge requires the NI-9986
- Quarter-Bridge requires the NI-9984 (120 Ω) or NI-9985 (350 Ω)
± 16 V Panyambungan
NI-9218 nyadiakeun éksitasi sensor 12 V pilihan. Pikeun ngagunakeun 12 V éksitasi, sambungkeun 9 VDC ka 30 VDC catu daya ka Vsup, sambungkeun terminal éksitasi on sensor anjeun EX + / EX-, tur ngaktipkeun 12 V éksitasi dina software Anjeun.
Rujukan patali:
- NI-9982 ± 16 V Connection Pinout
± 65 mV Panyambungan
- You must connect AI to EX- on the NI-9218.
- NI-9218 nyadiakeun éksitasi sensor 12 V pilihan. Pikeun ngagunakeun 12 V éksitasi, sambungkeun 9 VDC ka 30 VDC catu daya ka Vsup, sambungkeun terminal éksitasi on sensor anjeun EX + / EX-, tur ngaktipkeun 12 V éksitasi dina software Anjeun.
Rujukan patali
- NI-9982 ± 65 mV Connection Pinout
Sambungan Sasak Pinuh
- The NI-9218 provides 2 V excitation to loads ≥120 Ω or 3.3 V excitation to loads ≥350 Ω.
- The NI-9218 provides optional connections for remote sensing (RS) and shunt calibration (SC). Remote sensing corrects for errors in excitation leads, and shunt calibration corrects for errors caused by resistance within one leg of the bridge.
Rujukan patali:
- NI-9982 Pinout Sambungan Sasak Pinuh
Sambungan IEPE
- The NI-9218 provides an excitation current for each channel that powers IEPE sensors.
- AI+ provides DC excitation, and AI- provides the excitation return path.
Rujukan patali:
- NI-9982 IEPE Connection Pinout
± 20 mA Panyambungan
- Connecting ±20 mA signals requires the NI-9983.
- NI-9218 nyadiakeun éksitasi sensor 12 V pilihan. Pikeun ngagunakeun 12 V éksitasi, sambungkeun 9 VDC ka 30 VDC catu daya ka Vsup, sambungkeun terminal éksitasi on sensor anjeun EX + / EX-, tur ngaktipkeun 12 V éksitasi dina software Anjeun.
Connecting a loop-powered 2-wire or 3-wire transducer requires adding a 20 kΩ resistor between AI- and Ex-.
Rujukan patali:
- NI-9983 Pinout
± 60 V Panyambungan
Connecting ±60 V signals requires the NI-9987.
Rujukan patali:
- NI-9987 Pinout
Sambungan Satengah Sasak
- Connecting half bridges requires the NI-9986.
- The NI-9218 provides 2 V excitation to half bridges of ≥240 Ω total or 3.3 V excitation to half bridges of ≥700 Ω total.
- The NI-9218 provides optional connections for remote sensing (RS) and shunt calibration (SC). Remote sensing corrects for errors in excitation leads, and shunt calibration corrects for errors caused by resistance within one leg of the bridge.
Rujukan patali:
- NI-9986 Pinout
Sambungan saparapat-Sasak
- Connecting 120 Ω quarter bridges requires the NI-9984.
- Connecting 350 Ω quarter bridges requires the NI-9985.
Tip NI-recommends 2 V excitation when using a NI-9984 with 120 Ω quarter bridges and 3.3 V excitation when using the NI-9985 with 350 Ω quarter bridges.
Rujukan patali:
- NI-9984/9985 Pinout
Sambungan TEDS
For more information about TEDS, visit ni.com/info and enter the Info Code rdteds.
Rojongan TEDS
- TEDS Kelas 1 sensor nyadiakeun antarbeungeut pikeun mindahkeun informasi ti sensor. NI-9218 kalawan LEMO, NI-9218 kalawan DSUB, NI-9982L, NI-9982D, NI-9982F ngarojong TEDS Kelas 1 sensor.
- TEDS Class 2 sensors provide an interface for transferring information from TEDS-enabled sensors. The NI-9218 with LEMO, NI-9982L, NI-9983L, NI-9984L, NI-9985L, and NI-9986L support TEDS Class 2 sensors.
Vsup Daisy Chain Topology
NI-9218 sareng LEMO nyayogikeun opat pin dina konektor Vsup pikeun ranté daisy.
Pedoman sambungan NI-9218
Make sure that the devices you connect to the NI-9218 are compatible with the module specifications.
Pedoman Kabel Adat
- Perhatikeun tungtunan di handap ieu nalika ngagunakeun adaptor konektor cangkir solder NI-9988 atanapi konektor crimp LEMO (784162-01) pikeun nyiptakeun kabel khusus.
- Use a shielded cable for all signals.
- Connect the cable shield to the earth ground.
- Use twisted-pair wiring for the AI+/AI- and RS+/RS- signals to achieve specified EMC performance.
Diagram Blok NI-9218
- Two 24-bit analogue-to-digital converters (ADCs) simultaneously sample duanana saluran AI.
- The NI-9218 provides channel-to-channel isolation.
- The NI-9218 reconfigures the signal conditioning for each measurement type.
- The NI-9218 provides excitation for IEPE and bridge completion measurement types.
- The NI-9218 can provide optional 12 V sensor excitation for ±16 V, ±65 mV, and ±20 mA measurement types.
± 16 V jeung ± 65 mV Signal Conditioning
Sinyal input dina unggal saluran disangga, dikondisikeun, teras sampdipimpin ku ADC.
Conditioning sinyal pinuh-Sasak
- The analogue input connections sense and then amplify the incoming analogue signal.
- The excitation connections provide differential bridge-excitation voltage.
- Remote sensing continuously and automatically corrects for lead-wire induced excitation voltage loss when using the RS connections.
- Shunt calibration can be used to correct for lead-wire-induced desensitisation of the bridge.
Conditioning Sinyal IEPE
- The incoming analogue signal is referenced to an isolated ground.
- Each channel is configured for AC coupling with an IEPE current.
- Each channel provides a TEDS Class 1 interface.
± 20 mA Conditioning Sinyal
The NI-9983 provides a current shunt for the incoming analogue signal.
± 60 V Signal Conditioning
The NI-9987 provides an attenuator for the incoming analogue signal.
Satengah-Sasak Conditioning Signal
- The NI-9886 provides half-bridge completion resistors for the incoming analogue signal.
- You must connect AI+, EX+, and EX-.
- RS+ and RS- connections are optional.
- You do not need to connect the AI signal because it is connected internally.
Sakuar-Sasak Mode Conditioning
The NI-9984 and NI-9985 provide a quarter-bridge completion resistor and a half-bridge completion resistor.
Nyaring
The NI-9218 uses a combination of analogue and digital filtering to provide an accurate representation of in-band signals while rejecting out-of-band signals. The filters discriminate between signals based on the frequency range, or bandwidth, of the signal. The three important bandwidths to consider are the passband, the stopband, and the alias-free bandwidth.
NI-9218 ngagambarkeun sinyal dina passband, sakumaha diukur utamana ku passband ripple jeung fase nonlinier. Kabéh sinyal nu nembongan dina rubakpita alias-gratis boh sinyal unaliased atawa sinyal nu geus disaring ku sahanteuna jumlah panolakan stopband.
Passband
Sinyal-sinyal dina passband gaduh gain atanapi atenuasi anu gumantung kana frékuénsi. Jumlah leutik variasi gain nu patali jeung frékuénsi disebut passband flatness. Filter digital NI-9218 nyaluyukeun rentang frékuénsi passband pikeun cocog laju data. Ku alatan éta, jumlah gain atawa atenuasi dina frékuénsi tangtu gumantung kana laju data.
Stopband
Filter sacara signifikan ngirangan sadaya sinyal di luhur frékuénsi stopband. Tujuan utama saringan nyaéta pikeun nyegah aliasing. Ku alatan éta, skala frékuénsi stopband persis jeung laju data. Panolakan stopband nyaéta jumlah minimum atenuasi anu diterapkeun ku saringan ka sadaya sinyal kalayan frékuénsi dina stopband.
Alias-Free Bandwidth
Any signal that appears in the alias-free bandwidth of the NI-9218 is not an aliased artefact of signals at a higher frequency. The alias-free bandwidth is defined by the ability of the filter to reject frequencies above the stopband frequency, and it is equal to the data rate minus the stopband frequency.
Buka Adaptor Pangukuran
Naon anu kedah dilakukeun
- Unlock the measurement adapter housing/cover.
- Slide the measurement adapter housing/cover to access the screw terminals.
Pasang NI-998xD/998xL
Naon Paké
- NI-998xD or NI-998xL Measurement Adapter
- M4 or Number 8 Screw
- Obeng
Naon anu kedah dilakukeun
Mount the measurement adapter to a flat surface using the mounting hole on the measurement adapter and the screw.
Pangukuran Adaptor Grounding
Terminal taneuh dina adaptor ukur disambungkeun ka taneuh chassis nalika adaptor ukur disambungkeun ka NI-9218 sarta NI-9218 dipasang dina chassis a.
Pangukuran adaptor Pinouts
Bagian di handap ieu kalebet pinout pikeun adaptor pangukuran NI-9218.
NI-9982 ± 16 V Connection Pinout
Pins 3a and 3b are tied together on the NI-9982.
Rujukan patali:
- ± 16 V Panyambungan
NI-9982 ± 65 mV Connection Pinout
Pins 3a and 3b are tied together on the NI-9982.
Rujukan patali:
- ± 65 mV Panyambungan
NI-9982 Pinout Sambungan Sasak Pinuh
Pins 3a and 3b are tied together on the NI-9982.
Rujukan patali:
- Sambungan Sasak Pinuh
NI-9982 IEPE Connection Pinout
Pins 3a and 3b are tied together on the NI-9982.
Rujukan patali:
- Sambungan IEPE
NI-9983 Pinout
Pins 3a and 3b are tied together on the NI-9983.
Rujukan patali:
- ± 20 mA Panyambungan
NI-9984/9985 Pinout
Rujukan patali:
- Sambungan saparapat-Sasak
NI-9986 Pinout
Pins 3a and 3b are tied together on the NI-9986.
Rujukan patali:
- Sambungan Satengah Sasak
NI-9987 Pinout
Pins 3a and 3b are tied together on the NI-9987.
Rujukan patali:
- ± 60 V Panyambungan
FAQ
Dokumén / Sumberdaya
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Instrumén Nasional NI-9218 Channel Analog Input Module [pdf] Instruksi Manual NI-9218 sareng LEMO, NI-9218 sareng DSUB, Ni-9218 Channel Analog Input Module, NI-9218, Channel Analog Input Module, Analog Input Module, Input Module |