USB-OI16
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Catalog excerpts

USB-OI16 - 1

32 Channels. Monitor & Control. Galvanically Isolated. Record and output digital signals electrically isolated. The USB-OI16 features two 16-bit ports with 16 digital inputs and outputs each. Besides that, up to 2 counters or incremental encoders can be connected at the first digital inputs. 16 Optocoupler Inputs. 16 Semiconductor Switches. 16 digital states in the 3..32V voltage range can be sampled and recorded. The 16 semiconductor switches of the USB-OI16 are realized with high-side drivers for voltages in the 5..32V range. Get Connected. The digital channels of the application-specific hardware (sensor, machine, etc.) are connected at a 37-pin D-Sub female. Plug & Play. The connection to the PC is realized via USB. The USB-OI16 provides all typical USB features (e.g. Plug&Play, Hot-Plug). Up to 127 devices can be connected and installed during operation. Enlightened. The state of the input and output lines is indicated by LEDs. Count and Measure: Pulses. Frequency. Position. Period. If for the acquisition of large quantities, speed measurement, or determination of position: These are only a few applications the two 32-bit counters (incremental decoders) of the USB-OI16 can be used for. The integrated pulse time measurement function produces precise results especially in the low-frequency range. Self-Powered. The device is internally supplied with 5V provided by the USB interface. This reduces cabling efforts to a minimum and makes mobile measurements a lot easier. An external supply unit can be connected for higher output switching voltages at the digital outputs (7..32V). Open for Everyone. Widely supported: The USB-OI16 can be used under Windows® XP/7/8/10 as well as under Mac OS X, Free BSD, and Linux. The software for installation and programming is included for free. NextView®4. Test for Free. The device is supported by NextView® 4, the software for data acquisition and analysis. A fully functional 30-day trial is included with delivery to directly test the functionality of the USB-OI16. ► www.bmcm.de bavarian measurement company munich

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USB-OI16 - 2

Block Diagram 5V (int.) DC/DC Treiber/ Driver Treiber/ Driver 2 Start-up Procedure Install the bmcm driver package (see chapter 4.1.1). Connect the USB cable of the USB-OI16 to the USB interface of the PC and start the Plug&Play installation (see chapter 4.1.2). The device features an internal power supply of 5V. If the digital outputs require a switching voltage higher than the 5V of the USB interface, an external power supply providing 7..32V (see chapter 3.3) can be connected. If necessary, further software components can be installed now, as described in chapter 4.

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USB-OI16 - 3

3 Operating Elements, Connections, and Pin Assignments The available connections and components of the USB-OI16 are shown in the following figure of the board (view on top of the board (fitted with components), D-Sub 37 connector on the left). Anschluss Digitalkanale, ext. Schaltspannung 7..32V/ connection of digital channels, ext. switching voltage 7..32V 3.1 LEDs 16 LEDs on the USB-OI16 (see Figure 1, p. 3), each dedicated to the inputs and outputs, are turned on when a digital channel is high. 3.2 Connection to the PC The standard USB connector (type B) serves for the connection of the...

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USB-OI16 - 4

3.4 Digital Channels The digital lines are attached to the 37-pin D-Sub female (see Figure 1, p. 3). Electrical isolation to the PC is guaranteed by optocouplers on the USB-OI16. The digital lines are addressed via two 16-bit ports A and B by software. The 16 digital inputs (port A: I1..I16) and the 16 digital outputs (port B: O1..O16) are hard-wired at the D-Sub 37. a • Please carefully observe the polarity! Only apply voltages within the adjusted range! • IOGND must never be connected to PC-GND (USB), as this would override the galvanic isolation! O IOGND = digitale Masse / digital ground...

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USB-OI16 - 5

3.5 Counters with Pulse Time Measurement The USB-OI16 features two 32-bit counters allowing the connection of incremental encoders. The counter inputs (A, B, and Reset) are configured by software and can be reached then at the first digital input pins (counter 1: I1-I3; counter 2: I4-I6). The following table and figure shows the pin assignment of the counter inputs at the 37-pin D-Sub female: O Please refer to the relevant documentation of your product for further information about connecting your incremental encoder. 3.6 Interfacing Example The figure on the right shows the connection of...

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USB-OI16 - 6

4 Software Installation All software and documentation available for the USB-OI16 are integrated on the "Software Collection" CD included with delivery. When inserting the CD, a CD starter opens automatically (otherwise: start openhtml.exe). Change to the product page of the USB-OI16 by selecting the entry "Products" in the CD starter and then the hardware ("USB-OI16 ") listed under the interface "USB". For detailed information about installing or operating the software, please see the corresponding manuals. The Adobe Acrobat Reader is required to open the documentation in PDF format. You...

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USB-OI16 - 7

Plug&Play Installation As soon as the USB-OI16 is connected to the PC, the system announces the new hardware. Since the driver package has been copied to hard disc before, the hardware will be installed automatically under Windows® 7/8/10. Under Windows® XP, the automatic hardware detection is started by selecting the following: - Windows® 7/8/10: no specifications required - Windows® XP: "Install the software automatically" (SP2: do not connect with Windows® Update!) 4.1.3 Check Installation The entry "Data Acquisition (BMC Messsysteme GmbH)" is included in the Windows® Device Manager...

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USB-OI16 - 8

5 Compatibility of the USB-OI16 to USB-PIO with OI16 The USB-OI16 incorporates all functions in one device provided by the combination of a USB-PIO and OI16. Therefore, the USB-OI16 can serve as an alternative for this hardware combination. All previously used applications are fully compatible. 6 Important Notes for Using the USB-OI16 • The USB-OI16 is only suitable for extra-low voltages - please observe the relevant regulations! • An electrically isolated power unit (with CE) must be used for power supply. • All accessible pins are electrostatic sensitive devices. Provide for an...

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