National Instruments NI 6509 Digital I/O Connections

© National Instruments Corporation 11 NI 6509 User Guide and Specifications

Digital I/O Connections

The 100-pin high-density SCSI connector on the NI 6509 provides access

to 96 digital inputs and outputs. Use this connector to connect to external

devices, such as solid-state relays (SSRs) and LEDs. For easy connection

to the digital I/O connector, use the National Instruments SH100-100-F

shielded digital I/O cable with the SCB-100 connector block, or use the

R1005050 ribbon cable with the CB-50 or CB-50LP connector block.

Caution Do not make connections to the digital I/O that exceed the maximum I/O

specifications. Doing so may permanently damage the NI 6509 device and the computer.

Refer to the Signal Descriptions and Specifications sections for information about

maximum input ratings.

Pin Assignments

SH100-100-F Connector

Figure 3 shows the 100-pin SCSI connector on the NI 6509 device.

The naming convention for each pin is PX.Y, where X is the port (P)

number, and Y is the line number.

Contents

Main USER GUIDE AND SPECIFICATIONS NI 6509 Contents Configuration Programming Devices in Software Functional Overview Safety Information Page Related Documentation Features Digital Filtering Digital Filtering Example Programmable Power-Up States Change Detection Change Detection Example Watchdog Timer Digital I/O Connections Pin Assignments SH100-100-F Connector NI 6509 User Guide and Specifications 12 ni.com Figure 3. SH100-100-F Connector Pinout R1005050 Connector Figure 4. R1005050 Connector Pinout Signal Descriptions Power Connections Signal Connections Protecting Inductive Loads Figure 6. Limiting Flyback Voltages at the Inductive Load Sinking and Sourcing Examples Figure 8. NI 6509 Sourcing Connection Example, <24 mA Driving a Relay <24 mA Figure 7. NI 6509 Sinking Connection Example, <24 mA Driving a Relay >24 mA Figure 11. NI 6509 SSR Connection Example Figure 9. NI 6509 Sinking Connection Example, >24 mA Figure 10. NI 6509 Sourcing Connection Example, >24 mA Driving SSRs Accessories Specifications Power Requirements Digital I/O Digital Logic Levels Input Signals Output Signals (Vcc = 5 V) Physical Characteristics Environmental Operating Environment Storage Environment Shock and Vibration (PXI-6509 Only) Safety Electromagnetic Compatibility CE Compliance Environmental Management RoHS