Why Do I Get a Short Between Pins 1 & 2 of my NI 6624? Hardware: Counter/Timers (TIO)>>Devices>>PXI-6624
Problem: I cannot use Counter 0 of my PXI-6624. When I checked the resistance between Pins 1 & 2 on my PXI 6624 system, I appear to get a short or an unusually low resistance. All other Pins on the system give me an expected resistance. However, the card reads when the inputs are switched to gate inputs (pins 3 &4). The module has passed self-test on MAX. Solution: Check the part numbers of the cables that are being used. The recommended cable for PXI-6624, the SH 100-100-F (Part Number 185095-02) is very similar to the SH 100-100 cable recommended for the PCI 6031E (Part Number 182853C). There is a chance the cables may have been switched.
The SH-100-100 cable’s pins 1 and 2 are connected to the inner shield, causing these pins to be shorted. Since pins 1 and 2 are used as CTR0 SRC+ and SRC- respectively, using this cable with a PXI-6624 prevents users from using Counter 0 for applications that require signals to be connected to the source (such as edge counting). The SH 100-100-F cable will allow users to get full functionalities out of their PXI-6624 cards. Related Links: Products & Services: NI PCI-6624 Product Page Knowledge Base 35RHIHIO: Why Do I See An Incorrect Output on My PCI-6624? Attachments:
Report Date: 01/10/2008 Last Updated: 05/09/2008 Document ID: 4H9CS9QR |
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