Description
The CompactRIO Chassis, with a part number 781316-01, is a highly versatile and robust chassis designed for complex automation and control applications. The model NI-9157 features a 14-Slot configuration, providing ample space for a variety of modules to meet different system requirements.
At the heart of this chassis is the Virtex-5 LX85 FPGA, offering exceptional processing power for real-time data handling and control tasks. The chassis utilizes an MXI-Express interface for high-speed data transfer, ensuring efficient communication between modules and the external environment.
One of the notable features of the NI-9157 is its chain capability. It allows up to six NI MXI-Express RIO models to be daisy-chained, significantly expanding the system’s capacity. Additionally, a maximum of eight chains can be connected per controller, enabling extensive scalability for large-scale applications.
Users have the flexibility to choose between two power-up options: “Do Not Autoload VI” or “Autoload VI on device power-up“, catering to different startup requirements. However, it’s important to note that this chassis requires a compatible external power supply for operation.
The chassis is designed with redundant pairs of V and C terminals, enhancing its reliability and durability in demanding environments. It also features integrated reverse-voltage protection, safeguarding the system against potential electrical damage.
For developers looking to prevent LabVIEW FPGA applications from loading at startup, the chassis includes a NO FPGA APP Switch. This feature adds an extra layer of control over the system’s behavior during the boot process.
Lastly, the chassis is equipped with LED indicators, including 1 Power (bi-color) and 3 User FPGA LEDs, providing visual feedback on the system’s status and activity.
| Specification | Detail |
|---|---|
| Part Number | 781316-01 |
| Category | CompactRIO Chassis |
| Model | NI-9157 |
| Slots | 14-Slot |
| FPGA | Virtex-5 LX85 |
| Interface | MXI-Express |
| Chain Capability | Up to six NI MXI-Express RIO models daisy-chainable |
| Maximum Chains per Controller | Eight |
| Power-Up Options | “Do Not Autoload VI” and “Autoload VI on device power-up” |
| Power Supply | Requires compatible external power supply |
| Terminals | Redundant pairs of V and C terminals |
| Reverse-Voltage Protection | Integrated |
| NO FPGA APP Switch | Prevents LabVIEW FPGA applications from loading at startup |
| LEDs | 1 Power (bi-color) and 3 User FPGA |
Question 1: What is the part number for the NI-9157?
Answer 1: 781316-01
Question 2: How many slots does the NI-9157 chassis have?
Answer 2: 14 slots
Question 3: What type of FPGA is in the NI-9157?
Answer 3: Virtex-5 LX85 FPGA
Question 4: How many units can be daisy-chained in the NI-9157 system?
Answer 4: Up to six units
Question 5: What interface does the NI-9157 use?
Answer 5: MXI-Express interface



