lets the user enter 9009 or device commands from any
Web browser. The 9009 does all of the Modbus RTU
packet formatting and handles the response packets.
Device responses, Modbus status, and error conditions are
displayed for the user on the control page. Switching
between the different protocols is automatic and does not
require any effort on the user's part.
The 9009's GPIB interface is IEEE-488.2 compliant.
GPIB command strings can be used to control the 9009
or be converted into Modbus RTU packets to control any
connected Modbus devices.
The 9009's USB interface utilizes Microsoft's universal
serial driver that operates on any Windows PC. Using the
Microsoft driver avoids future driver issues as Microsoft
releases new versions of Windows.
The 9009 has both RS-232 and RS-485 interfaces so it
can be connected directly to a single Modbus slave device
or it can be connected to multiple Modbus devices via an
The 9009 is a small 5. 5 inch square board that is
designed to be mounted on the rear panel of the host
chassis with the connectors protruding through the rear
panel. The 9009 is designed so the connector shells will
make an RFI tight seal with the rear panel.
Pricing for the Model 9009 is $495 each in quantities
of one to four units.
USB DATA ACQUISITION
The USB-16008FS-Plus multifunction USB data
acquisition device from
Measurement Computing is
now available for $399.
• Eight single-ended
• 16-bit resolution.
sampling (one A/D converter per input).
• Up to 400 kS/s sample rate (100 kS/s max for any
channel); up to 800 kS/s burst mode.
• Eight digital I/O.
• One event counter.
• External digital trigger input.
• No external power required.
• Out-of-the-box DAQami software to acquire, view,
and log data.
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For more information, contact: