cDAQ-9181 Specifications
- Updated2024-01-19
- 5 minute(s) read
cDAQ-9181 Specifications
Definitions
Warranted specifications describe the performance of a model under stated operating conditions and are covered by the model warranty.
Characteristics describe values that are relevant to the use of the model under stated operating conditions but are not covered by the model warranty.
- Typical specifications describe the performance met by a majority of models.
- Nominal specifications describe an attribute that is based on design, conformance testing, or supplemental testing.
Specifications are Typical unless otherwise noted.
Conditions
Specifications are valid at 25 °C unless otherwise noted.
Analog Input
Input FIFO size | 127 samples |
Maximum sample rate[1]1 Performance dependent on type of installed C Series module and number of channels in the task. | Determined by the C Series module |
Timing accuracy2 Does not include group delay. For more information, refer to the documentation for each C Series module.[2] | 50 ppm of sample rate |
Timing resolution[2] | 12.5 ns |
Number of channels supported | Determined by the C Series module |
Analog Output
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Timing accuracy | 50 ppm of sample rate | ||||||||||||
Timing resolution | 12.5 ns | ||||||||||||
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AO waveform modes | Non-periodic waveform, periodic waveform regeneration mode from onboard memory, periodic waveform regeneration from host buffer including dynamic update |
Digital Waveform Characteristics
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Timing accuracy | 50 ppm |
General-Purpose Counters/Timers
Number of counters/timers | 4 |
Resolution | 32 bits |
Counter measurements | Edge counting, pulse, semi-period, period, two-edge separation, pulse width |
Position measurements | X1, X2, X4 quadrature encoding with Channel Z reloading; two-pulse encoding |
Output applications | Pulse, pulse train with dynamic updates, frequency division, equivalent time sampling |
Internal base clocks | 80 MHz, 20 MHz, 100 kHz |
External base clock frequency | 0 MHz to 20 MHz |
Base clock accuracy | 50 ppm |
Output frequency | 0 MHz to 20 MHz |
Inputs | Gate, Source, HW_Arm, Aux, A, B, Z, Up_Down |
Routing options for inputs | Any module PFI,analog trigger, many internal signals |
FIFO | Dedicated 127-sample FIFO |
Frequency Generator
Number of channels | 1 |
Base clocks | 20 MHz, 10 MHz, 100 kHz |
Divisors | 1 to 16 (integers) |
Base clock accuracy | 50 ppm |
Output | Any module PFI terminal |
Module PFI Characteristics
Functionality | Static digital input, static digital output, timing input, and timing output |
Timing output sources[3]3 Actual available signals are dependent on type of installed C Series module. | Many analog input, analog output, counter, digital input, and digital output timing signals |
Timing input frequency | 0 MHz to 20 MHz |
Timing output frequency | 0 MHz to 20 MHz |
Digital Triggers
Source | Any module PFI terminal |
Polarity | Software-selectable for most signals |
Analog input function | Start Trigger, Reference Trigger,Pause Trigger,Sample Clock,Sample Clock Timebase |
Analog output function | Start Trigger, Pause Trigger,Sample Clock,Sample Clock Timebase |
Counter/timer function | Gate, Source, HW_Arm, Aux, A, B, Z, Up_Down |
Module I/O States
At power-on | Module-dependent. Refer to the documentation for each C Series module. |
Network Interface
Network protocols | TCP/IP, UDP |
Network ports used | HTTP:80 (configuration only), TCP:3580; UDP:5353 (configuration only), TCP:5353 (configuration only); TCP:31415; UDP:7865 (configuration only), UDP:8473 (configuration only) |
Network IP configuration | DHCP + Link-Local, DHCP, Static, Link-Local |
High-performance data streams | 6 |
Data stream types available | Analog input, analog output, digital input, digital output, counter/timer input, counter/timer output, NI-XNET[4]4 When a session is active, CAN or LIN (NI-XNET) C Series modules use a total of two data streams regardless of the number of NI-XNET modules in the chassis. |
Default MTU size | 1500 bytes |
Ethernet
Network interface | 100 Base-TX, full-duplex; 100 Base-TX,half-duplex;10 Base-T,full-duplex;10 Base-T,half-duplex |
Communication rates | 10/100 Mbps, auto-negotiated |
Maximum cabling distance | 100 m/segment |
Safety Voltages
Connect only voltages that are within these limits.
V terminal to C terminal | 30 V maximum, Measurement Category I |
Environmental
Operating temperature | 0 °C to 55 °C |
Storage temperature | -10 °C to 70 °C |
Ingress protection | IP 30 |
Operating humidity | 10% to 90% RH, noncondensing |
Storage humidity | 5% to 95% RH, noncondensing |
Pollution Degree | 2 |
Maximum altitude | 5,000 m |
Shock and Vibration
To meet these specifications, you must direct mount the cDAQ-9181 system and affix ferrules to the ends of the terminal lines.
Operational shock | 30 g peak, half-sine, 11 ms pulse | ||||||
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Power Requirements
Power input connector | 2 positions 3.5 mm pitch mini-combicon screw terminal with screw flanges, Phoenix Contact 1727566 |
Power input mating connector | Sauro CTF020V8, Phoenix Contact 1714977, or equivalent |
Physical Characteristics
Weight (unloaded) | Approx. 470 g (16.6 oz) |
Dimensions (unloaded) | 194.0 mm × 88.7 mm × 33.6 mm(7.64 in. × 3.49 in. × 1.32 in.) Refer to the following figure. |
Power
Connector
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1 Performance dependent on type of installed C Series module and number of channels in the task.
2 Does not include group delay. For more information, refer to the documentation for each C Series module.
3 Actual available signals are dependent on type of installed C Series module.
4 When a session is active, CAN or LIN (NI-XNET) C Series modules use a total of two data streams regardless of the number of NI-XNET modules in the chassis.
5 Includes maximum 1 W module load per slot across rated temperature and product variations.
In This Section
- Definitions
- Conditions
- Analog Input
- Analog Output
- Digital Waveform Characteristics
- General-Purpose Counters/Timers
- Frequency Generator
- Module PFI Characteristics
- Digital Triggers
- Module I/O States
- Network Interface
- Ethernet
- Safety Voltages
- Environmental
- Shock and Vibration
- Power Requirements
- Physical Characteristics