Chapter 7 Built-in High-speed Counter Function
XBC E-Type Main Unit 7-5 Ver. 1
7.1.3 “E” type Functions
1. Counter mode
a. High Speed counter module can count High Speed pulses which cannot 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).
b. Available input is 1-phase input, 2-phase input and CW/ CCW input.
c. Count increasing/decreasing methods are as follows;
i. For 1-phase input:
I. Increasing/decreasing count operation with program setting
II. Increasing/decreasing count operation by B-phase input signal
ii. For 2-phase input: setting by difference in phase between A-phase and B-phase
iii. For CW/CCW input: Increasing operation if B-phase is LOW with A-phase input
and Decreasing operation if A-phase is LOW with B-phase input.
d. Auxiliary modes are as follows;
i. Count Latch
ii. Periodic Pulse Count
e. Pulse input mode
i. 1-phase count mode
I. 1-phase 1-input 1-multiplication operation mode
a. A-phase input pulse counts at rising and increasing/decreasing
will be selected by the applicable program.
Increasing/Decreasing classification
rising
falling
Increasing/decreasing count setting signal Off
Increasing/decreasing count setting signal On Decreasing count -
Operation example: Increasing/decreasing count operation from B-phase input signal
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