ADLINK 723X Isolation I/O Card Configuration Guide

Typical application example: The 7234 output drives a 24V relay, with VDD connected to 24V+. One end of the relay coil is connected to VDD and the other end is connected to IDO-n. When the output is 1, the coil is energized and pulled in. For 7234P, one end of the coil is connected to IDO-n and the other end is connected to 24V -, with the same logic 1 driving.

Software Ecology and Development Support

ADLINK provides multi-level software resources for the 723X series:

DAQPilot (Next Generation Driver/SDK): Unified API interface, supports ActiveX and. NET Assembly, graphical configuration tool DAQMaster, can quickly generate test tasks. It is recommended that all new projects prioritize its use.

Traditional DASK drivers: PCIS-DASK is suitable for Windows (including Vista 64 bit), and PCIS-DASK/X is suitable for Linux. These drivers have been validated for a long time and have rich APIs, making them suitable for maintenance projects with existing code bases.

Third party integration:

MATLAB: Use the Data Acquisition Toolbox directly through the DAQ-MTLBB adapter.

LabVIEW: DAQ View PnP VI library, fully compatible with NI style, supports LabVIEW 7.0 to 8.5.

Agilent VEE: PICS-VEE driver package seamlessly integrated into the VEE environment.

ActiveX Control DAQBench: Used for SCADA/HMI development, supports VB, VC++, Delphi, etc.

DAQCreator: Non programming data acquisition software that supports real-time display, FFT analysis, and streaming (up to 40MB/s), suitable for fast validation.

Troubleshooting and Common Problems

The system cannot recognize the new card: check if the PCI/PCIe slot is in good contact and try replacing the slot; Confirm that the PCI resource allocation in the motherboard BIOS is not turned off; Verify if the card is compatible with the operating system (e.g. LPCIe-7230 requires PCIe x1 slot).

Read the input value as always 0 or 1: Check the external wiring and confirm that the EICOM connection is correct; Measure whether the input voltage is within the effective range (5~24V is high, 0~1.5V is low); If differential input is used, ensure that the potential difference between the H/L terminals meets the requirements.

Output unable to drive load: Check if the VDD power supply is normal and if the voltage is below the rated load value; For the current injection type, confirm that the load is connected between VDD and the output pin; For the source current type, confirm that the load is connected between the output pin and ground; Measure whether the voltage drop during output conduction is too large (the saturation voltage drop of Darlington tube is about 1V).

Interrupt not triggered (PCI-7233): Confirm that there is a level change in the input channel; Check if the interrupt clearing function is correctly called (if not cleared, the latch signal will prevent subsequent interrupts); Verify that the BIOS has assigned a valid IRQ and that ISR is correctly registered in the driver.

Serious overheating of the board: Check if the total output current exceeds the rated value, especially when multiple channels are conducting simultaneously with high duty cycle, and reduce the rating; Reduce the number of simultaneously conductive paths or increase heat dissipation appropriately.