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NI-9753 Diff IO

8-Channel C Series Differential Digital I/O Module

The NI Powertrain Controls Differential Digital I/O Module

 

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NI-9753 Features

The NI-9753 is an 8-channel Differential Digital I/O Module designed for compatibility with RS485/422 transceivers, operating within a 0-5 V range. Each channel can be customized via Boolean logic or used with specialized fuel and spark VIs that require an Engine Position Tracking (EPT) VI for certain applications. It connects through the CompactRIO backplane using an HD15 connector and an external DB-37 connector. The module includes robust overvoltage protection, allowing it to handle voltage pulses of up to ±50 V, ensuring reliable operation in industrial environments.

NI-9753-Digital-I-O-Module
 

About the NI-9753

The National Instruments 9753 Differential Digital I/O Module includes a CompactRIO (cRIO) module with eight individually controlled inputs or outputs with 50 ns resolution. When the channels are configured as outputs, the channels can be controlled by a customized Boolean logic or by specialized fuel and spark VIs included with the NI 9753, in which case, an Engine Position Tracking (EPT) VI is also required.The NI 9753 fuel and spark VIs provide control similar to that of NI’s fuel and spark driver module kits. The NI 9753 outputs do not drive current sufficient for driving fuel injectors or ignition coils. The outputs can be used for commands to
external custom driver circuits or smart actuators with built-in driver circuits. Multiple fuel and spark VIs can be wired together through OR logic gates to deliver multi-pulse engine-synchronous commands to a single output. When the channels are configured as inputs, the Boolean signals from these channels can be used as general purpose Boolean Trigger signals within the LabVIEW FPGA application.

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NI-9753 User Guide 

The NI 9753 provides differential digital I/O with RS485/RS422 compatible transceivers, which is ideal for automotive applications. You can control channels with custom Boolean logic, such as sending fuel and ignition commands, or you can use serial communication protocols. The NI Powertrain Controls Device Drivers software provides functions for engine position tracking and complex engine-synchronous fuel/spark commands. In static direction control mode, you can individually configure all eight channel directions during initialization. In dynamic direction control mode, only four channels are available, but each channel direction is controlled dynamically at run-time with a direction-control Boolean, which is useful for half-duplex serial communications.

Download the Guide

VP-NI-User-Guide-01.1
 

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