Querying Device Capabilities with C Series Devices
When querying DAQmx Device and DAQmx Physical Channel attributes/properties with C Series devices, the supported attributes/properties depend on the slot you plug a device into. For instance, to use the counter functionality on a C Series device, you must plug the C Series device into slots 5 or 6. If the device is not in one of these slots, you cannot perform counter I/O, nor can you query counter-specific device capabilities such as the counter size.