USB-DIO24H/37
24-Channel Digital I/O USB Device
User's Guide
May 2019. Rev 4 © Measurement Computing Corporation
Page 1: ...USB DIO24H 37 24 Channel Digital I O USB Device User s Guide May 2019 Rev 4 Measurement Computing Corporation...
Page 2: ...d in any form by any means electronic mechanical by photocopying recording or otherwise without the prior written permission of Measurement Computing Corporation Notice Measurement Computing Corporati...
Page 3: ...nstalling the hardware 6 Connecting the board for I O operations 6 Connectors and cables 6 Field wiring signal termination and conditioning 7 Chapter 3 Functional Details 8 Components 8 37 pin I O con...
Page 4: ...or losing your data bold text Bold text is used for the names of objects on the screen such as buttons text boxes and check boxes italic text Italic text is used for the names of manuals and help topi...
Page 5: ...e 32 bit external event counter Power is supplied by the 5 volt USB supply from your computer No external power is required Digital I O lines are accessed through a 37 pin connector Each digital port...
Page 6: ...ernal USB hub connected to the computer When you connect the USB DIO24H 37 for the first time multiple Found New Hardware popup balloons open when the operating system detects the device When installa...
Page 7: ...ailable in the Guide to DAQ Signal Connections available for download from www mccdaq com support DAQ Signal Connections aspx Figure 3 C37FF x cable Field wiring signal termination and conditioning Re...
Page 8: ...two 8 bit and two 4 bit ports based on an 82C55 mode 0 emulation You can configure each port independently for input default or output The CTR signal is the input to the 32 bit external event counter...
Page 9: ...function of the USB DIO24H 37 LED LED Illumination LED status Description Steady green The USB DIO24H 37 is connected to a computer or external USB hub Blinks continuously Data is being transferred Bl...
Page 10: ...line Since each DIO line can output 15 mA maximum 24 DIO 15 mA 360 mA maximum rating for the chips Output sink current limits Each USB DIO24H 37 DIO output can sink up to 64 mA For an individual line...
Page 11: ...s reside in the PC s USB Host Controller The USB port s on your PC are root port hubs All externally powered root port hubs such as a desktop PC provide up to 500 mA of current for a USB device In thi...
Page 12: ...reads per second typ Counter clear 125 port writes per second typ Power Table 4 Power specifications Parameter Conditions Specification Supply current Note 5 No load 100 mA typ 135 mA max Input power...
Page 13: ...ating temperature range 0 to 70 C Storage temperature range 40 to 85 C Humidity 0 to 90 non condensing Mechanical Table 7 Mechanical specifications Parameter Specification Dimensions L W H 119 mm 84 m...
Page 14: ...Bit 6 5 Port B Bit 5 24 Port C Bit 5 6 Port B Bit 4 25 Port C Bit 4 7 Port B Bit 3 26 Port C Bit 3 8 Port B Bit 2 27 Port C Bit 2 9 Port B Bit 1 28 Port C Bit 1 10 Port B Bit 0 29 Port C Bit 0 11 GND...
Page 15: ...tibility EN 61326 1997 Amendment 1 1998 Emissions Group 1 Class A EN 55011 1990 CISPR 11 Radiated and Conducted emissions Immunity EN61326 Annex A IEC 61000 4 2 1995 Electrostatic Discharge immunity C...
Page 16: ...ion NI Hungary Kft 10 Commerce Way H 4031 Debrecen H tar t 1 A Hungary Norton Massachusetts 02766 Phone 36 52 515400 508 946 5100 Fax 36 52 515414 Fax 508 946 9500 http hungary ni com debrecen E mail...
