Press Release Summary:
Bus-Powered USB-7202, with 8 analog input channels, and USB-7204 boards, with 8 single-ended or 4 differential analog inputs, include Message-Based DAQ OS-independent protocol that allows devices to be programmed with text-based messages. Software framework can be ported to multiple OSs and allows DAQ operations to be programmed through common command interface. Primarily intended for use with protocol, boards are multifunction measurement and control devices.
Original Press Release:
Measurement Computing Introduces Message-Based DAQ (MBD) Protocol
Norton, Massachusetts, August 14, 2009 - Measurement Computing today announced the release of two new data acquisition products featuring a new O/S-independent protocol that allows DAQ devices to be programmed with simple text-based messages.
A new 7000 series product line, which includes the USB-7202 and USB-7204 boards, combines small form-factor, bus-powered USB hardware, and a light and agile software framework that can be ported to multiple operating systems. The software framework, a core technology to the series, is called Message-Based DAQ (MBD).
MBD is a well-defined protocol that permits the programming of DAQ devices using simple text-based messages. The MBD protocol greatly simplifies driver and application development, because all DAQ operations are programmed through a common command interface, which is composed of a consistent, extensible firmware interface and an open-source, cross-platform API.
The firmware parses text-based messages transmitted through a device driver, and converts these messages into DAQ-specific commands that control the device. This concise and well-documented interface allows driver development for multiple operating systems, and also supports O/S-independent embedded systems that need to communicate only over a USB root port.
The USB-7202 and USB-7204 boards are multifunction measurement and control devices intended specifically for the MBD protocol. Intended primarily for OEM applications, both are shipped as open stackable PC/104-sized boards without enclosures.
The USB-7202 features:
o Eight analog input channels
o 16-bit resolution
o 100 kS/s max total throughput
o Simultaneous sampling (1 A/D converter per input)
o One 32-bit event counter
o External digital trigger input
o External pacer
o Eight digital I/O lines
o Detachable screw terminals
The USB-7204 features:
o Eight single-ended, or four differential, analog inputs
o Two 12-bit analog outputs
o 12-bit (differential), 11-bit (single-ended)
o Up to 50 kS/s sample rate
o 16 digital I/O lines
o Detachable screw terminals
Both the USB-7202 and USB-7204 offer two USB connection options: high retention B-type, and OEM header.
Each product ships with a 2-meter long USB cable, four nylon standoffs with screws, and a CD containing a Windows® installer file (msi), the MC7000 help file, and an archive file containing installation files for a Linux operating system.
"We developed the new architecture specifically for OEMs," explained Jim Stevens, Measurement Computing's vice president of R&D, "The Message-Based DAQ architecture is ideal for developers who value a small driver footprint, an easy-to-learn API, and the ability to port their application to virtually any operating system. The MBD software API is open source, so OEM developers can strip it down, enhance it, and otherwise modify it depending on their specific needs. The USB-7202 and 7204 are just the first two in a series of MBD products under development."
About Measurement Computing
Measurement Computing is a market leader in the design, manufacture, and distribution of a complete line of value-priced data acquisition hardware, and test and measurement software solutions for both programmers and non-programmers. Information about Measurement Computing is available on the Web at www.mccdaq.com.
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