Description
The 779313-01 is a PXI Digital I/O module, designated as the PXI-6521. It features an 8 Channel Isolated Digital Input and 8 Mechanical Relay Digital Output, making it suitable for a wide range of industrial applications. The module operates within a voltage range of ±30 VDC and adheres to industry standard 24 V logic levels, ensuring compatibility with a broad array of devices.
This module is designed with high channel isolation to safeguard against electrical interference and provides a measurement category II rating. It can withstand surge voltages of up to 1,500 V, ensuring reliability in challenging conditions. The relay state control operates on a positive voltage for energizing or de-energizing, with a default power-up state of de-energized (NO and COM open).
Users can configure power-up states with the support of NI-DAQ and LabVIEW, enhancing the module’s flexibility for different applications. Additionally, the PXI-6521 offers monitoring capability to observe changes on all or selected input lines and interrupt capability, which is programmable against change on an input line.
With a maximum switching power of 60 W/60 VA and a maximum voltage of 150 VAC, this module is robust enough for demanding applications. It maintains a modest power consumption of 100 mA max at 3.3 V (±5%) and 300 mA at 5 V, optimizing efficiency for system operations.
| Specification | Detail |
|---|---|
| Part Number | 779313-01 |
| Category | PXI Digital I/O |
| Model | PXI-6521 |
| Channel Configuration | 8 Channel Isolated Digital Input, 8 Mechanical Relay Digital Output |
| Voltage Range | ±30 VDC |
| Logic Levels | Industry standard 24 V |
| Channel Isolation | High |
| Measurement Category | II |
| Surge Voltage | Up to 1,500 V |
| Relay State Control | Positive voltage for energizing/de-energizing |
| Default Power-Up State | De-energized (NO and COM open) |
| User-Configurable Power-Up States | Supported with NI-DAQ and LabVIEW |
| Monitoring Capability | Monitor changes on all or selected input lines |
| Interrupt Capability | Programmable against change on an input line |
| Maximum Switching Power | 60 W/60 VA |
| Maximum Voltage | 150 VAC |
| Power Consumption | 100 mA max at 3.3 V (±5%), 300 mA at 5 V |
Question 1: What is the part number for the PXI-6521?
Answer 1: 779313-01
Question 2: How many isolated digital inputs does the PXI-6521 have?
Answer 2: 8
Question 3: What is the max voltage the PXI-6521 supports?
Answer 3: ±30 VDC
Question 4: What is the surge voltage protection of the PXI-6521?
Answer 4: Up to 1,500 V
Question 5: Can the PXI-6521’s power-up states be configured?
Answer 5: Yes, with NI-DAQ and LabVIEW


