NI PCI-6516 Digital I/O Device Module

The NI PCI-6516 is a 32-channel digital output module for PCI systems, engineered for industrial control and manufacturing test applications requiring bank-isolated outputs with advanced fault protection. Each output channel delivers up to 75 mA of drive current and supports voltage ranges from 0 V to 30 VDC or ±30 VDC, with self-resetting fuses protecting against overcurrent conditions. The module features programmable power-up states (400 ms response time) and configurable digital I/O watchdogs that force outputs to safe states upon system or application failure. Optical isolation on all channels enables flexible source or sink wiring configurations, while programmable input filters provide noise rejection, glitch removal, and adjustable debouncing for relay and switch inputs.

– Technical Specifications

• Part Number: 779082-01
• Bus Interface: PCI
• Digital Output Channels: 32
• Channel Isolation: Bank-isolated, optically isolated channels
• Output Voltage Range: 0 V to 30 VDC or ±30 VDC
• Digital Levels: Up to ±30 VDC
• Output Current Drive: 75 mA per single-ended channel
• Overcurrent Protection: Self-resetting fuse on each output port
• Connector: 100-pin high-density SCSI with 100-pin ribbon or shielded cable compatibility
• Operating Temperature: 0°C to +55°C
• Output Vcc Requirement: Greater than 10 VDC (output voltage 4.3 VDC to 6.3 VDC)
• Dimensions: 14.1 cm × 11.4 cm
• Weight: 70.9 g

– Key Features

• Programmable power-up states for safe initialization with industrial actuators
• Configurable watchdog clock ensures safe output states on system faults
• Programmable per-line input filtering with adjustable time constants (seconds)
• Photocoupler and Darlington output architecture for reliable switching
• High current switching capability with integrated fusing

– Typical Applications

• Industrial process control and machinery automation
• Manufacturing test systems and production line diagnostics
• Equipment safety interlocks and fault-tolerant control circuits

– Compatibility & Integration

• Driver Support: NI-DAQmx with multithreaded streaming technology
• Programming Languages: LabVIEW, Python, ANSI C, C#.NET, MATLAB
• Recommended Accessories: SH37F-37M shielded cable (1 m) and CB-37FH connector block