Description

Features

• Acquisition of incremental encoders
• Frequency measurement
• Pulse width measurement
• Connection of 3 or 6 incremental encoders
• Possible configurations: 3 channels, 32-bit counting depth, diff. or TTL on the front connector/6 channels, 16-bit counter depth, diff. or TTL divided in 3 channels on the front connector and 3 on the connector for ribbon cable
• Automatic recognition of direction
• Mode with single, double or quadruple resolution
• Frequency measurement 10 MHz in direct mode, 2.5 MHz in quadruple mode
• 3 “reference” inputs for reference logic
• 3 “error” inputs for error signals, external strobe inputs
• Software or hardware reset
• 3 x 16-bit timer (82C54): Generation of interrupts, Strobe of the counters with timer-defined intervals, Programmable reference frequency for frequency and pulse width measure
• Interrupt with timer or through external strobe of the counters
• 3 x 8 TTL I/O
• Addressing through DIP switches to any address in the I/O space
• AT board with 16-bit access

Safety features

• All inputs are protected against overvoltage through transorb diodes
• All inputs with EMI or RC filters
• Detection of line interruption in differential mode

EMC tested according to 89/336/EEC (CE certification)

• IEC 61326: electrical equipment for measurement, control and laboratory use

Applications

• Industrial automation
• Event counting
• Frequency measurement
• Period measurement
• Pulse width measurement
• Pulse generation

Software drivers

A CD-ROM with the following software and programming examples is supplied with the board.

Standard drivers for:

• Windows XP/2000/NT/98/95, Windows 3.11, MS-DOS Real-time drivers for Windows XP/2000/NT/98/95

Software

• Microsoft VC++ 5.0
• Microsoft C 6.0
• Borland C++ 5.01
• Borland C 3.1
• Visual Basic 5.0/4.0/1.0
• Delphi 4/1
• LabVIEW 5.01
• On request: LabWindows/CVI 5.01

Further operating systems, compilers and samples. Driver download: www.addi-data.com/downloads