User`s manual

99
CHAPTER 4 FUNCTION
4
4.1 Pulse Input Mode and Counting Method 4.1.1 Pulse input mode types
CHAPTER 4 FUNCTION
This chapter describes the QD65PD2 functions.
I/O numbers (X/Y), buffer memory addresses, and external input terminals are for CH1 in this chapter.
For CH2 I/O numbers (X/Y), refer to the following section.
Page 32, Section 3.3.1
For CH2 buffer memory addresses, refer to the following section.
Page 42, Section 3.4.1
4.1 Pulse Input Mode and Counting Method
4.1.1 Pulse input mode types
Six types of pulse input mode are available: 1-phase pulse input (multiple of 1 and 2), CW/CCW pulse input, and 2-
phase pulse input (multiple of 1, 2, and 4).
(1) Pulse input mode and count timing
Pulse input mode Count timing
1-phase multiple of 1
For counting up
Counts on the rising edge () of A.
B and CH1 Count down command (Y04) are OFF.
For counting down
Counts on the falling edge () of A.
B or CH1 Count down command (Y04) is ON.
1-phase multiple of 2
For counting up
Counts on the rising edge () and the falling edge ()
of A.
B and CH1 Count down command (Y04) are OFF.
For counting down
Counts on the rising edge () and the falling edge ()
of A.
B or CH1 Count down command (Y04) is ON.
A
B and CH1
Count down
command
(Y04)
A
B or CH1
Count down
command
(Y04)
A
B and CH1
Count down
command
(Y04)
A
B or CH1
Count down
command
(Y04)