PCI‑6229 | Product Introduction

The NI PCI‑6229 is a high-density multi-function DAQ card in the M series of National Instruments (NI), based on PCI bus and full-length card. It features 32 AI channels (16 bit/250 kS/s) + 4 AO channels + 48 DIO channels + 2 counters. It is the high-density model in the 622x series with 4 AO channels, suitable for scenarios such as multi-channel sensor acquisition + multi-channel analog control, closed-loop testing, signal generation + acquisition integration, laboratory automation, etc.

Part Number: 779068‑01; It has been discontinued (EOL), and the replacement model is PCIe‑6329.

I. Basic Information

Model: PCI‑6229

Brand: National Instruments (NI)

Series: M-Series (High-density AI + 4-channel AO)

Bus: PCI (3.3 V / 5 V compatible, full-length card)

Connector: 2 × 68-pin VHDCI

Driver: NI-DAQmx

Operating Temperature: 0 ~ 55 °C

Size: 9.7 × 15.5 cm

II. Analog Input AI (32 channels)

Channels: 32 single-ended / 16 differential (software configurable) download.ni.com

Resolution: 16 bits, no bit loss guarantee download.ni.com

Maximum Sampling Rate: 250 kS/s (single / total channels) download.ni.com

Input Range (software selectable): ±0.2 V, ±1 V, ±5 V, ±10 V download.ni.com

Coupling: DC download.ni.com

Input Impedance: >10 GΩ || 100 pF download.ni.com

Maximum Working Voltage: ±11 V (signal + common mode) download.ni.com

CMRR: 92 dB @ DC~60 Hz download.ni.com

Input FIFO: 4,095 samples

III. Analog Output AO (4 channels)

Channels: 4 voltage outputs

Resolution: 16 bits

Maximum Update Rate: 833 kS/s (per channel)

Output Range (software selectable): ±5 V, ±10 V

Drive Capacity: ±5 mA (per channel)

Setup Time: 10 µs (to ±0.5 LSB)

Load: Minimum 1 kΩ

IV. Digital I/O (DIO)

Channels: 48 bidirectional TTL (including 16 PFI programmable function interfaces)

Level: 5 V TTL/CMOS (compatible with 3.3 V)

Maximum Rate: 10 MHz

Functions: Bidirectional input/output, event triggering, handshake signal, programmable de-joicing

V. Counter / Timer

Channels: 2 32-bit general-purpose counters

Clock: 20 MHz internal base

Functions: Event counting, frequency / period measurement, pulse output, encoder, PWM

VI. Trigger and Synchronization

Trigger: AI analog trigger, PFI external digital trigger

Synchronization: RTSI multi-card synchronization

Data Transmission: DMA, interrupt, programmable I/O

VII. Installation and Usage Tips (Core of the Manual) Installation

Power off and disconnect the power supply. Insert into the standard PCI slot and secure the cover screws.

After powering on, the device will be identified and self-tested in MAX (Measurement & Automation Explorer).

Wiring (2 × 68-pin VHDCI)

AI: Single-ended connect AIn + GND; differential connect AI+ / AI−, common-mode voltage ≤ ±11 V.

AO: AO output + AGND, load ≥ 1 kΩ,严禁 short circuit.

DIO: TTL level, common ground, avoid long-distance parallel lines; PFI can be configured as trigger / clock.

Software configuration (NI-DAQmx)

Sampling mode: Asynchronous scan (non-synchronous).

Range: Select ±0.2 / ±1 / ±5 / ±10 V according to signal amplitude.

Trigger： Commonly used edge trigger (rising / falling). Notes for Attention

The analog input must not exceed ±11 V, and the analog output must not be short-circuited; otherwise, the front-end will be damaged.

There is no isolation, and it is not suitable for strong interference/high-voltage environments. It requires a SCC/SCXI signal conditioner.

VIII. Core Features

32 channels of 16-bit AI + 4 channels of 16-bit AO + 48 DIO + 2 counters, all-inclusive high-density I/O

PCI bus, plug-and-play, stable NI-DAQmx driver

AI single-ended/differential configurable, 4 AO channels independently ±5/±10 V, suitable for sensors + actuators closed-loop

Applications: multi-channel data acquisition, signal generation + acquisition integration, closed-loop testing, laboratory automation