PXI-6521
Starting at $1,414.00
779313-01
16-Channel, ±30 VDC, 8 Sink/Source Inputs, 8 Relay Outputs, Isolated PXI Digital I/O Module
Overview
The PXI-6521 is an industrial digital I/O module with high channel isolation and industry-standard 24 V logic levels. For added safety, the PXI-6521 requires a keyed connector. If a computer or application fault occurs, the PXI-6521 can use digital I/O watchdogs to switch to a configurable safe output state to ensure detection and safe recovery from fault conditions. It also features programmable power-up states, digital filtering, and change detection for optimal control over your application.
Included Items
- Module
- Safety, Environmental, & Regulatory documentation
PXI-6521 Details
Part Numbers (1) Price | 779313-01 |
|---|---|
| NI Lead Time | 6-7 weeks |
| Bus Connector | PXI Hybrid |
| Single-Ended Digital I/O Channel Current Drive | 2 A |
| Digital I/O Logic Levels | 24 V |
| Number of Digital Input Only Channels | 8 |
| Number of Digital Output Only Channels | 8 |
| Number of Bidirectional Digital Channels | — |
| Digital Input Voltage Range | -30 V to 30 V |
| Output Voltage Range | 0 V to 150 V |
| Maximum Clock Rate | — |
| Signaling Type | Differential |
| Reconfigurable | — |
| Maximum Sample Rate | — |
| Number of Analog Input Channels | — |
| Maximum Digital Update Rate | — |
| Maximum Analog Update Rate | — |
| Number of Analog Output Channels | — |
| Operating Temperature Range | — |
| Bus Connection | PXI Hybrid |
| Current Flow Direction | — |
| Digital I/O Isolation | — |
| Front Connection Type | D-SUB(1) |
| Number of Counters/Timers | — |
| Number of External Clock Inputs | — |
| Relay Type | — |
| Supports Peer To Peer Streaming | — |
| Supported Hardware Platform | PXI |
| Digital I/O Termination | — |
| Duplex | — |
| Dynamic RAM (DRAM) | — |
| Maximum Acquisition Rate | — |
| Maximum Generation Rate | — |
| Maximum Active Load | — |
| Maximum Data Rate | — |
| Module Width | 1 |
| Onboard Memory | — |
| Supports Hardware Compare | — |
| Supports PMU | — |
| Product Description | NI PXI-6521 8 Ch-Ch Iso DI, 8 Mech Relay DO & NI-DAQ |
PXI-6521 Accessories and Software
- Model (Part Number)DescriptionImageCompatible Part NumbersR37-37 (779195-01)R37F-37M-1 37-pin Female to Male Ribbon I/O Cable, 1m779313-01SH37F-37M (778621-02)SH37F-37M-2 37-Pin Female to Male Shielded I/O Cable, 2 m779313-01SH37F-P-4 (778620-04)SH37F-P-4 37-Pin Female to Pigtail Shielded I/O Cable, 12ft779313-01
- Model (Part Number)DescriptionImageCompatible Part NumbersCB-37F-HVD (779491-01)CB-37F-HVD 37-pin ScrewTerminal Blk, UL rec.150V CAT II, Din Rail779313-01TB-2621 (779444-01)TB-2621 37-Pin D-Sub (Female) terminals, 150V CAT II779313-01
- Product (Part Number)DescriptionRecommended use casesFlexLogger Professional (785748-3501)FlexLogger Professional, Subscription License, Download
Recommended for automated, extensible data logging with NI data acquisition (DAQ) hardware. Automate tests using alarms, triggers, and events, and expand capabilities with plug-ins.
Key Features
- Multichassis synchronization—Synchronize multiple NI chassis for accurate, time-aligned measurements across high channel counts.
- Logging triggers—Start, stop, or segment data recording automatically based on sensor thresholds or other conditions to capture only what matters.
- Events—Respond to specific occurrences during a test, such as activating equipment when a condition is met (for example, start cooling fans when temperature exceeds a limit).
- Automation APIs—Control and monitor FlexLogger from external applications (Python, NI LabVIEW, or NI TestStand), enabling integration into larger automated test systems.
- Calculation channels—Perform real-time math on acquired data (averages, RMS, custom formulas) to track derived measurements as the test runs.
- Plug-ins—Extend FlexLogger with custom LabVIEW or Python plug-ins to integrate third-party hardware, perform custom analysis, or connect to lab systems.
- CAN/LIN logging—Acquire and log automotive network data alongside sensor measurements for complete vehicle or subsystem testing.
LabVIEW+ Suite (788509-35)NI LabVIEW+ Suite, Subscription License, DownloadRecommended for engineers building full test and validation systems where modular code development and higher-level frameworks are needed to accelerate development for shorter time to market.
The LabVIEW+ Suite includes the following products:
- NI LabVIEW—Provides a graphical programming environment for test system development, enabling connectivity to any instrument and fully integrated user interfaces.
- NI TestStand—Eliminates the need for time-intensive in-house sequencer development and maintenance by providing an off-the-shelf test management software for validation and production test.
- NI DIAdem—Saves engineers hundreds of hours of manual data analysis and report creation with automation.
- NI FlexLogger™ software—Simplifies data acquisition and data logging with interactive measurement setup for NI DAQ hardware.
- NI InstrumentStudio™ software—Provides a central location for configuration, measurement, and automation.
Resources
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