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July 2025
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778938-01, 64-Channel, ±30 VDC, 32 Sink/Source Inputs, Bank-Isolated Digital I/O Device
Rated 4.8/5 | 6 ratings
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 778938-01 Digital I/O Device
National Instruments part number 778938-01 is an identifying part number for the PCI-6515, a bank-isolated digital I/O Device. This device is a 64-channel, 32 Sink/Source Inputs, 32 Sink Output, Digital I/O Device with a maximum voltage range of 30 Volts. It is an industrial digital I/O interface featuring eight banks of isolated channels. With each input bank wired in a source or sink configuration.
With programmable power-up states, you can configure the initial output states in software to ensure safe operation when connected to industrial actuators. If a computer or application fails, the part number 778938-01 can utilize digital I/O watchdogs to switch to a configurable safe output state, ensuring fault detection and safe recovery. Programmable input filters eliminate glitches and spikes, and provide debouncing for digital switches and relays through a software-selectable digital filter.
Users can program this device to send an interrupt when a change occurs on any input line. The DIO device can monitor changes on selected input lines or all input lines, detecting rising edges (0 to 1), falling edges (1 to 0), or both. When an input change happens, the DIO device generates an interrupt, and the NI-DAQ driver notifies the software. The device supports a voltage range of -30 V to 30 V.
This NI 778938-01 Digital device features common-mode isolation of 30 VDC between banks and between bank-to-bus connections. It supports data transfers via interrupts and programmed I/O. The device has a typical propagation delay of 80 μs with a 100 Ω load. Additionally, it offers programmable power-up states with a response time of 400 ms.
| Part Number | 778938-01 |
|---|---|
| Model Name | PCI-6515 |
| Part Type | Bank-Isolated Digital I/O Device |
| Digital Input Channels | 32 Source/Sink |
| Digital Output Channels | 32 Sink |
| Power Requirements | 20 mA/port, typical |
| Voltage Range | -30 V to 30 V |
| Connector Type | 100-pin keyed female SCSI |
| Programmable power-up states response time | 400 ms |
| Weight | 6.1 oz. |
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