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July 2025
779517-01
779517-01, C Series, Sinking Digital Output, 32 Channels, NI-9477 Digital Module
Actual item may vary if no part number is provided on quote request.
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Andrew Gar**** Verified Buyer
" Amazing to work with and had my order within 1 week after purchasing with all NI certs and data that were needed. "
March 2025
Said Sai**** Verified Buyer
" Competent contact for highly specialized components. The support team is very knowledgeable. Many thanks for the help and the fast shipping! "
January 2025
Bob C**** Verified Buyer
" Jason was able to get our emergency situation taken care of quickly and professionally. "
May 2025
Gregg Flecki**** Verified Buyer
" Great service and great products. This is my 2nd time using Apex Waves, truly impressed. "
January 2025
Carol Zimme**** Verified Buyer
" Very responsive and helpful, competitive pricing. Good source! "
July 2025
Andrew Gar**** Verified Buyer
" Amazing to work with and had my order within 1 week after purchasing with all NI certs and data that were needed. "
March 2025
Said Sai**** Verified Buyer
" Competent contact for highly specialized components. The support team is very knowledgeable. Many thanks for the help and the fast shipping! "
January 2025
Bob C**** Verified Buyer
" Jason was able to get our emergency situation taken care of quickly and professionally. "
May 2025
Gregg Flecki**** Verified Buyer
" Great service and great products. This is my 2nd time using Apex Waves, truly impressed. "
January 2025
National Instruments 779517-01 C Series Digital Module
Commonly referred to as the NI-9477, the 779517-01 is a multipurpose 32-channel sinking output digital module from National Instruments. Because of its proficiency with industrial logic levels and signals, this module can be directly connected to a wide range of industrial devices, including motors, solenoids, and relays. Its 32 channels each have isolation between the channel and the earth ground and can handle signals between 5 and 60 volts. The 779517-01 can sink current up to 20 A per module, with a maximum of 1 A per channel. By wiring channels in parallel, this maximum can be raised.
Each channel of the 779517-01 includes a digital output (DO) pin for connecting digital input devices, and the module also features four common (COM) pins. When a channel is activated, its DO pin is driven to COM, reflecting its sinking output nature. With a continuous output current of 1 A per channel, the module supports parallel channel connections to boost the output current to connected devices.
To help save energy while the module is not in use, it enables low-power sleep mode, which can be used based on the chassis it is linked to. With an external power supply voltage range of 0 to 60 VDC and a strong output impedance of 0.065 Ω maximum, the 779517-01 is designed to withstand industrial settings. However, it does not feature reversed-voltage or short-circuit protection, so these conditions must be managed externally.
In terms of performance, the 779517-01 ensures quick response times in control applications with a maximum update rate of 8 μs and a propagation latency of just 1 μs. The module contributes to up to 1.5 W of thermal dissipation at 70 °C in active mode, with an efficient power consumption of only 25 μW in sleep mode and a maximum of 650 mW in active mode.
| Model | 779517-01 |
|---|---|
| Model Name | NI‑9477 |
| Part Type | C Series Digital Module |
| Number of Channels | 32 |
| Output Type | Sinking |
| Output Voltage Range | 5 V to 60 VDC |
| Continuous Output Current per Channel | 1 A max |
| Maximum Current per Module (Parallel Wiring) | 20 A max |
| Maximum Update Rate | 8 μs max |
| Power Consumption (Active mode) | 650 mW max |
Associated part numbers for 779517-01:
779517-01 PDF Manuals
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