National Instruments sbRIO-9684 GPIC I/O Board

National Instruments' sbRIO-9684 (Part Number: 785257-01) is a GPIC I/O Board intended for use in industrial automation applications. It has a sampling rate of up to 180 kS/s and supports 16-bit analog input. The board has sixteen channels for voltage signal monitoring and accepts single-ended, pseudo-differential analog inputs. For signal connection, each channel has AI+ and AI-pins. AI-is internally connected by a high-resistance path to an isolated ground reference.

The sbRIO-9684 guarantees precise and concurrent sampling of all 16 channels thanks to a 16-bit analog-to-digital converter (ADC) for each channel. ±10 V and ±5 V input ranges are provided by the analog inputs to support different sensor configurations. Additionally, power consumption on termination resistors can be lowered by 50% by using the ±5 V input range.

The board provides eight single-ended scanning analog input channels with an AI pin for monitoring applications. These channels allow for more system integration flexibility because they share ground pins with analog output channels. It is noteworthy that in order to maintain specified performance, signal sources with an output impedance of less than 2 kΩ should be utilized, since greater source impedances can have an impact on bandwidth and accuracy.

The sbRIO-9684 has 14 half-bridge and 24 sinking channels for digital output, which can be used to control a variety of digital devices. A constant output current of 20 mA is supported by each digital output channel, guaranteeing compatibility with a broad variety of devices.

With a maximum power usage of 2 W from the NI Single-Board RIO device, the sbRIO-9684 has low power requirements. The board minimizes downtime during initialization thanks to its fast 0.1 s power-up time.

In terms of environmental factors, the sbRIO-9684, when mounted inside an appropriate enclosure, functions dependably in temperatures between -40 °C and 50 °C. However, further cooling can be required for prolonged temperature ranges up to 70 °C. Additionally, the board is made to endure operating humidity levels between 10% and 90% RH and storage humidity levels between 5% and 95% RH.