First, it is important to understand that each device or module may use its own pinout or pin mapping scheme. Typically, families of devices with the same pin count will use the same numbering and signal combinations. Always verify you are using the correct pinout for your device. There are several resources you can use to find this scheme.
- Quick Reference Labels - If available, this is the easiest and quickest way to find your signal mapping. The quick reference label is recommended to be printed and attached to your accessory.
- Manuals, User Guides and Specifications - Depending on your model, your device's pinout will be listed inside of its published documentation. You can search NI Manuals for your device.
- NI-DAQmx Help - NI-DAQmx Help installs locally with your driver, and is also available online. The NI-DAQmx Device Terminals Help section contains the pinouts for every hardware model supported by that version of the driver.
- Measurement & Automation Explorer (MAX) - NI MAX is used to configure your NI DAQ hardware, and also references out to many different types of reference information, including device pinouts. Right-click your device name under Devices and Interfaces, and select Device Pinouts to directly navigate to the NI-DAQmx Device Terminals Help entry for your device. This will open the help document, as well as go directly to the pinout diagrams for that particular device.
Accessing Device Pinouts from MAX.
Figure 2 is an example of a device pinout for an M-Series data acquisition card. Figure 3 shows an example device pinout for one of the cDAQ modules.
NI 6251 Device Pinout.
NI 9401 Device Pinout.