NI-9361 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.

NI-9361 Pinout

The NI-9361 provides connections for eight digital input channels for the embedded counters.



Table 1. Signal Descriptions
Signal Description
COM Common reference connection to isolated ground
DI+ Digital input signal connection for singled-ended measurements and positive digital input signal connection for differential measurements
DI- Negative digital input signal connection for differential measurements
NC No connection
Vout Voltage supply output connection
Vsup Voltage supply input connection

Input Characteristics

Number of inputs

8

Input type, programmable per line

Differential, single-ended with pull-up or single-ended without pull-up

I/O signal rate

1 MHz maximum

Digital line filtering settings, programmable per line

0 ns (disabled) to 5.24 ms in 80 ns steps

Digital logic levels
Differential(DI+ - DI-)

Input voltage range (DI+ and DI-)

0 V to 5 V

Input high range

200 mV to 5 V

Input low range

-200 mV to -5 V

Hysteresis

None

Single-ended (DI+)

Input voltage range (DI+)

0 V to 24 V

Programmable input threshold range

1 V to 4 V

Input threshold error

12% maximum

Input threshold resolution

20 mV

Hysteresis

500 mV

Internal pull-up settings, programmable per line

Enabled or disabled

Internal pull-up voltage

5 V

Maximum input current

With 5 V input (DI+ or DI-)

50 µA maximum per input terminal

With 24 V input (DI+)

1.5 mA maximum per input terminal

I/O protection

Input voltage (channel-to-COM), on 8 DI+ terminals simultaneously

+30 V

Input voltage (channel-to-COM), on two pairs of DI+ and DI- terminals at a time

±30 V

Input current on DI+

±2.3 mA maximum at ±30 V overvoltage

Input current on DI-

±3 mA maximum at ±30 V overvoltage

Input propagation delay

310 ns maximum

Input channel-to-channel skew

220 ns maximum

Input pulse width distortion

160 ns maximum

Counter Features

Number of counters

8 counters

Resolution

32 bits

Sample rate

102.4 kHz maximum

Counter measurements

Edge counting, pulse1 The NI-9361 supports this measurement only for CompactRIO systems.[1], pulse width, period, frequency, duty-cycle and two-edge separation[1]

Encoder measurements

Velocity and position

Encoder support

Incremental encoders with two-pulse or quadrature encoding (and optional Z index reloading)

Internal timebase

100 MHz

Timebase accuracy

±50 ppm maximum

Input routing

Any DI can drive any counter input

Power Requirements

Maximum power consumption from chassis

Active mode

0.92 W maximum

Sleep mode

53 µW maximum

Maximum thermal dissipation (at 70 °C)

Active mode

1.20 W maximum

Sleep mode

0.46 W maximum

External Power Supply (VSUP)

Input voltage

30 V DC maximum

Current

1 A maximum

Note The NI-9361 does not provide overvoltage protection for external power supply connection.

Physical Characteristics

Weight

146 g (5.15 oz)

Dimensions

Visit ni.com/dimensions and search by module number

Safety Voltages

Connect only voltages that are within the following limits:

Isolation

Channel-to-channel

None

Channel-to-earth ground (up to 3,000 m)

Continuous

60 V DC, Measurement Category I

Withstand

1,000 V RMS, verified by a 5 s dielectric withstand test

Vsup inputs-to-earth ground (up to 3,000 m)

Continuous

60 V DC, Measurement Category I

Withstand

1,000 V RMS, verified by a 5 s dielectric withstand test

Channel-to-earth ground (up to 5,000 m)

Continuous

60 V DC, Measurement Category I

Withstand

860 V RMS, verified by a 5 s dielectric withstand test

Vsup inputs-to-earth ground (up to 5,000 m)

Continuous

60 V DC, Measurement Category I

Withstand

860 V RMS, verified by a 5 s dielectric withstand test

Note Measurement Categories CAT I and CAT O are equivalent. These test and measurement circuits are for other circuits not intended for direct connection to the MAINS building installations of Measurement Categories CAT II, CAT III, or CAT IV.

Measurement Category I

Warning Do not connect the product to signals or use for measurements within Measurement Categories II, III, or IV, or for measurements on MAINs circuits or on circuits derived from Overvoltage Category II, III, or IV which may have transient overvoltages above what the product can withstand. The product must not be connected to circuits that have a maximum voltage above the continuous working voltage, relative to earth or to other channels, or this could damage and defeat the insulation. The product can only withstand transients up to the transient overvoltage rating without breakdown or damage to the insulation. An analysis of the working voltages, loop impedances, temporary overvoltages, and transient overvoltages in the system must be conducted prior to making measurements.
Mise en garde Ne pas connecter le produit à des signaux dans les catégories de mesure II, III ou IV et ne pas l'utiliser pour des mesures dans ces catégories, ou des mesures sur secteur ou sur des circuits dérivés de surtensions de catégorie II, III ou IV pouvant présenter des surtensions transitoires supérieures à ce que le produit peut supporter. Le produit ne doit pas être raccordé à des circuits ayant une tension maximale supérieure à la tension de fonctionnement continu, par rapport à la terre ou à d'autres voies, sous peine d'endommager et de compromettre l'isolation. Le produit peut tomber en panne et son isolation risque d'être endommagée si les tensions transitoires dépassent la surtension transitoire nominale. Une analyse des tensions de fonctionnement, des impédances de boucle, des surtensions temporaires et des surtensions transitoires dans le système doit être effectuée avant de procéder à des mesures.

Measurement Category I is for measurements performed on circuits not directly connected to the electrical distribution system referred to as MAINS voltage. MAINS is a hazardous live electrical supply system that powers equipment. This category is for measurements of voltages from specially protected secondary circuits. Such voltage measurements include signal levels, special equipment, limited-energy parts of equipment, circuits powered by regulated low-voltage sources, and electronics.

Note Measurement Categories CAT I and CAT O are equivalent. These test and measurement circuits are for other circuits not intended for direct connection to the MAINS building installations of Measurement Categories CAT II, CAT III, or CAT IV.

Environmental Characteristics

Temperature

Operating

-40 °C to 70 °C

Storage

-40 °C to 85 °C

Humidity

Operating

10% RH to 90% RH, noncondensing

Storage

5% RH to 95% RH, noncondensing

Ingress protection

IP40

Pollution Degree

2

Maximum altitude

5,000 m

Shock and Vibration
Operating vibration

Random

5 g RMS, 10 Hz to 500 Hz

Sinusoidal

5 g, 10 Hz to 500 Hz

Operating shock

30 g, 11 ms half sine; 50 g, 3 ms half sine; 18 shocks at 6 orientations

To meet these shock and vibration specifications, you must panel mount the system.

1 The NI-9361 supports this measurement only for CompactRIO systems.