PLC with PIC16F648A Micro controller - Part 8
Küçük Resim Yok
Tarih
2009
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Some of the significant aspects and functions of a macro 8-bit up/down counter (CTUD) PLC-based microcontroller are discussed. The CTUD has two inputs, such as CU and CD, while it can be used to count up one input and count down on the other. The up/down counter counts down the number of 'rising edges' detected at the input CD, while PV defines the maximum value for the counter. It is observed that the counter output Q is set true and the counting up stops when the counter reaches the PV value. The reset input R can be used to set the output Q false and clear the count value CV to zero. A Boolean variable is used as a rising edge detector to identify the rising edges of the inputs CU or CD. Another Boolean variable, called CTUD8-FLG, num is also used to carry out logical operations within the macro PLC-based microcontroller.
Açıklama
Anahtar Kelimeler
Controllers, Microcontrollers, Boolean variables, Edge detectors, Logical operations, Maximum values, Up/down counters, Data storage equipment
Kaynak
Electronics World
WoS Q Değeri
Scopus Q Değeri
N/A
Cilt
115
Sayı
1878
