National Instruments NI-9218 Channel Analogue Input Module
Whakatakotoranga
- Ingoa Hua: NI-9218
- Momo Tuhonohono: LEMO me DSUB
- Momo Ine: Tautoko i roto mo nga momo momo
- Te Hihikotanga Pūoko: Ko te 12V whakakorikori
Momo Tuhonohono
Ko te NI-9218 neke atu i te kotahi momo hononga: NI-9218 me LEMO me NI-9218 me DSUB. Ki te kore e tohua te momo hononga, e tohu ana a NI-9218 ki nga momo hononga e rua.
NI-9218 Pinout
Signals by Measurement Type
| Aratau | 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 | — | — | — |
| Katoa-
Piriti |
EX+ [2] | — | EX- [2] | RS+ | RS- | AI+ | AI- | SC | SC | — |
| IEPE | — | AI+ | AI- | — | — | — | — | — | — | — |
| TEDS | — | T+ 4 | T- | — | — | — | — | — | — | T+ 5 |
Whakaahuatanga Tohu
| Waitohu | Whakaahuatanga |
| 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 |
Momo Ine
Ko te NI-9218 he tautoko i hangaia mo nga momo ine e whai ake nei.
- ±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.
Aki NI recommends using the NI-9982 screw-terminal adapter when using built-in measurement types on the NI-9218.
Ko te NI-9218 he tautoko taapiri mo nga momo ine e whai ake nei i te wa e whakamahi ana i te taapiri ine-motuhake.
- ±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 Hononga
Ko te NI-9218 e whakarato ana i te 12 V sensor excitation. Hei whakamahi i te hihiko 12 V, honoa he hiko 9 VDC ki te 30 VDC ki Vsup, hono atu nga pito whakaihiihi i runga i to puoro ki te EX+/EX-, ka taea te whakakorikori 12 V i roto i to rorohiko.
Tohutoro e pa ana:
- NI-9982 ± 16 V Hononga Pinout
±65 mV Hononga
- You must connect AI to EX- on the NI-9218.
- Ko te NI-9218 e whakarato ana i te 12 V sensor excitation. Hei whakamahi i te hihiko 12 V, honoa he hiko 9 VDC ki te 30 VDC ki Vsup, hono atu nga pito whakaihiihi i runga i to puoro ki te EX+/EX-, ka taea te whakakorikori 12 V i roto i to rorohiko.
Tohutoro e pa ana
- NI-9982 ± 65 mV Hononga Pinout
Hononga Piriti Katoa
- 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.
Tohutoro e pa ana:
- NI-9982 Pinout Hononga Piriti Katoa
Hononga 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.
Tohutoro e pa ana:
- NI-9982 IEPE Hononga Pinout
± 20 mA Hononga
- Connecting ±20 mA signals requires the NI-9983.
- Ko te NI-9218 e whakarato ana i te 12 V sensor excitation. Hei whakamahi i te hihiko 12 V, honoa he hiko 9 VDC ki te 30 VDC ki Vsup, hono atu nga pito whakaihiihi i runga i to puoro ki te EX+/EX-, ka taea te whakakorikori 12 V i roto i to rorohiko.
Connecting a loop-powered 2-wire or 3-wire transducer requires adding a 20 kΩ resistor between AI- and Ex-.
Tohutoro e pa ana:
- NI-9983 Pinout
±60 V Hononga
Connecting ±60 V signals requires the NI-9987.
Tohutoro e pa ana:
- NI-9987 Pinout
Hononga Hawhe-Bridge
- 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.
Tohutoro e pa ana:
- NI-9986 Pinout
Nga Hononga-Hauwha-Bridge
- Connecting 120 Ω quarter bridges requires the NI-9984.
- Connecting 350 Ω quarter bridges requires the NI-9985.
Aki 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.
Tohutoro e pa ana:
- NI-9984/9985 Pinout
Hononga TEDS
For more information about TEDS, visit ni.com/info and enter the Info Code rdteds.
Tautoko TEDS
- Ko nga pūoko TEDS Class 1 he atanga mo te whakawhiti korero mai i nga puoro. Ko te NI-9218 me LEMO, NI-9218 me DSUB, NI-9982L, NI-9982D, NI-9982F e tautoko ana i te TEDS Class 1 sensors.
- 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
Ko te NI-9218 me te LEMO e whakarato ana i nga titi e wha ki te hononga Vsup mo te mekameka daisy.
NI-9218 Aratohu Hononga
Make sure that the devices you connect to the NI-9218 are compatible with the module specifications.
Nga Aratohu Whakarerenga Waea
- Kia mau ki nga aratohu e whai ake nei ina whakamahi koe i te NI-9988 solder cup connector adapter, te LEMO crimp connector (784162-01) ki te hanga taura ritenga.
- 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.
NI-9218 Hoahoa Poraka
- Two 24-bit analogue-to-digital converters (ADCs) simultaneously sampe rua nga hongere 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 me ± 65 mV Tohu Tohu
Ko nga tohu whakauru ki ia hongere ka parea, ka whakatauhia, ka sampka arahina e te ADC.
Whakamahere Waitohu Piriti Katoa
- 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.
IEPE Tohu Tohu
- 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 Waitohu Tohu
The NI-9983 provides a current shunt for the incoming analogue signal.
± 60 V Waitohu Tohu
The NI-9987 provides an attenuator for the incoming analogue signal.
Hawhe-Bridge Waitohu Tohu
- 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.
Waahanga Aratau Piriti Hauwha
The NI-9984 and NI-9985 provide a quarter-bridge completion resistor and a half-bridge completion resistor.
Tātari
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.
Ko te NI-9218 e tohu ana i nga tohu i roto i te paanui, i te ine i te tuatahi ma te ripple passband me te wahanga kore raina. Ko nga tohu katoa ka puta mai i roto i te peera-kore-kore he tohu kore korero, he tohu ranei kua tātarihia e te iti rawa o te whakakore i te herenga aukati.
Whakawhitiwhiti
Ko nga tohu kei roto i te paanui he hua e whakawhirinaki ana ki te auau, he whakaheke ranei. Ko te iti o te rerekeetanga o te whiwhinga e pa ana ki te auau ka kiia ko te paanui paanui. Ko nga whiriwhiringa mamati o te NI-9218 ka whakatika i te awhe auau o te passband kia rite ki te reeti raraunga. Na reira, ko te nui o te whiwhinga, te whakaheke ranei i tetahi auau ka whakawhirinaki ki te reeti raraunga.
Whakamutua
Ka tino whakaitihia e te tātari nga tohu katoa i runga ake i te iarere aukati. Ko te whainga tuatahi o te tātari ko te aukati i te whakaingoatanga. Na reira, ka whakatauritehia te auau o te peepee ki te reiti raraunga. Ko te paopao aukati ko te iti rawa o te whakahekenga e whakamahia ana e te tātari ki nga tohu katoa me nga iarere kei roto i te roopu aukati.
Alias-Free Aratuku
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.
Te Whakatuwhera i te Waauru Ine
Me aha
- Unlock the measurement adapter housing/cover.
- Slide the measurement adapter housing/cover to access the screw terminals.
Whakaekea te NI-998xD/998xL
He aha te whakamahi
- NI-998xD or NI-998xL Measurement Adapter
- M4 or Number 8 Screw
- Kaihurihuri
Me aha
Mount the measurement adapter to a flat surface using the mounting hole on the measurement adapter and the screw.
Whakapapa Whakapapa inenga
Ko nga pito whenua i runga i te urutau inenga e hono ana ki te whenua tahuhu ina hono te urutau ine ki te NI-9218 ka whakauruhia te NI-9218 ki roto i te tahuhu.
Pinouts Whāurutau Inenga
Kei roto i nga waahanga e whai ake nei nga pinout mo nga taputapu inenga NI-9218.
NI-9982 ± 16 V Hononga Pinout
Pins 3a and 3b are tied together on the NI-9982.
Tohutoro e pa ana:
- ±16 V Hononga
NI-9982 ± 65 mV Hononga Pinout
Pins 3a and 3b are tied together on the NI-9982.
Tohutoro e pa ana:
- ±65 mV Hononga
NI-9982 Pinout Hononga Piriti Katoa
Pins 3a and 3b are tied together on the NI-9982.
Tohutoro e pa ana:
- Hononga Piriti Katoa
NI-9982 IEPE Hononga Pinout
Pins 3a and 3b are tied together on the NI-9982.
Tohutoro e pa ana:
- Hononga IEPE
NI-9983 Pinout
Pins 3a and 3b are tied together on the NI-9983.
Tohutoro e pa ana:
- ± 20 mA Hononga
NI-9984/9985 Pinout
Tohutoro e pa ana:
- Nga Hononga-Hauwha-Bridge
NI-9986 Pinout
Pins 3a and 3b are tied together on the NI-9986.
Tohutoro e pa ana:
- Hononga Hawhe-Bridge
NI-9987 Pinout
Pins 3a and 3b are tied together on the NI-9987.
Tohutoro e pa ana:
- ±60 V Hononga
FAQ
Tuhinga / Rauemi
 |
National Instruments NI-9218 Channel Analog Input Module [pdf] Pukapuka Tohutohu NI-9218 me LEMO, NI-9218 me DSUB, NI-9218 Channel Analog Input Module, NI-9218, Channel Analog Input Module, Analog Input Module, Input Module |