Chapter 1 Overview
1-1
Chapter 1 Overview
High Speed counter modules were designed for XGT(XGK/XGI/XGR) series and used with XGT PLC CPU.
And XGF-HO2A(Open Collector type) , XGF-HD2A(Line Drive type) modules are available.
High Speed Counter modules can count the high speed pulses which can not be processed by CPU module’s counter instructions
(CTU, CTD, CTUD etc.), up to binary value of 32 bits (-2,147,483,648 ~ 2,147,483,647).
High Speed counter modules have the following functions;
1) 3 kinds of pulse inputs are available.
(a) If 1-phase is input
(1) Increasing/Decreasing function by means of the applicable program(1-multiplier, 2-multiplier)
(2) Increasing/Decreasing function by means of the B-phase input(1-multiplier, 2-multiplier)
(b) if 2-phase is input, 1-multiplier, 2-multiplier, 4-multiplier increasing/decreasing function by means of the
difference in phase.
(c) if CW/CCW is input, increasing/decreasing function by means of A-phase or B-phase.
2) Preset/Gate function by means of the applicable program or external input signal
3) 6 additional functions are available such as Count Clear, Count Latch, Sampling Count, Input frequency Measure, Revolution
Measure per unit time and Count Disable.
4) 7 kinds of compared signals can be outputted at output contact of the built-in transistor through compared based value (Min
compared value, Max compared value) and current count value.
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