Summary of Contents for OVERDIGIT EX1608DD
- Page 1 Local functions user manual EX1608DD module update: 16-06-2017 IEC-line by OVERDIGIT overdigit.com...
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Page 2: Table Of Contents
Table of contents Module requirements ......................3 1.1. The local functions ........................3 1.2. Functions area of EX1608DD module ................... 3 Counting functions ........................5 2.1. Function 1: up counting on rise edge ................... 5 2.2. Function 2: down counting on rise edge ..................5 2.3. -
Page 3: Module Requirements
1.2. Functions area of EX1608DD module The EX1608DD slave module offers, for this purpose, an area of 500 holding registers starting at address 1000. In particular 16 areas, size of 10 words each, are assigned respectively to the 16 digital inputs of the module. The first word of each area (offset +0) is used to enable and configure the function associated with a specific input . -
Page 4: Iec-Line By Overdigit
EX1608DD module local functions Holding Register Description 1000 Function configuration of input channel 00 1001 First data word used by the function of input channel 00 ------- 1009 Last data word used by the function of input channel 00 1010... -
Page 5: Counting Functions
EX1608DD module local functions Counting functions Codes 1 through 9 are dedicated to the enabling of counting functions. The EX1608DD module is a generic digital I/O module and is not dedicated to the particular tasks that require high reading speed as in the case of encoder in positioning systems. The module can instead be used for counting of pulses whose frequency do not exceed 1KHz with square waveform type. -
Page 6: Function 3: Up Counting On Fall Edge (From R.01.008 / P03452)
EX1608DD module local functions 2.3. Function 3: up counting on fall edge (from r.01.008 / P03452) The code 3 enables count function with an increase of one unit every falling power of the corresponding input. The count word is available for reading and writing at the address with offset +1 with refer to the area dedicated to the channel. -
Page 7: Impulse Capture Functions
EX1608DD module local functions Impulse capture functions Codes 10 through 19 are dedicated to the enabling of impulse capture functions. The EX1608DD module can store the detection of short-duration signals which can be lost in the case of I/O update at lower frequencies. The input of module must remain in a defined logic state for a minimum of 0.5ms so that it can be recognized the related signal. -
Page 8: Frequency Measure Functions
EX1608DD module local functions Frequency measure functions Codes 100 through 109 are dedicated to the enabling of frequency measure functions. The maximum frequencies that the EX1608DD module can measure do not exceed 1KHz with square waveform type. 4.1. Function 100: frequency measure on 1” interval The code 100 enables the function of frequency measure for the signal applied to the digital input channel.
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