Specifications

Setup for Mode 20
Recall that V7633 is the HSIO Mode Select register. Refer to the diagram below. Use BCD
20 in the lower byte of V7633 to select the High-Speed Counter Mode. The DL05 does not
use bits 8 - 12, 14 and 15 in V7633.
Choose the most convenient method of programming V7633 from the following:
• Include load and out instructions in your ladder program
• DirectSOFT 5’s memory editor
• Use the Handheld Programmer D2–HPP
We recommend using the first method above so that the HSIO setup becomes an integral
part of your application program. An example program later in this section shows how to do
this.
X Input Configuration
The configurable discrete input options for High-Speed Counter Mode are listed in the table
below. Input X0 is dedicated for Phase A, and input X1 is for Phase B. Input X2 is the reset
input to the quadrature counter, but it does not cause an interrupt. The section on Mode 60
operation at the end of this chapter describes programming the filter time constants.
DL05 Micro PLC User Manual, 6th Edition, Rev. C
E–20
Appendix E: High-speed Input and Pulse Output Features
1
2
3
D
E
6
7
8
9
10
11
1
1
14
A
B
C
D
0
15 14 13 12
Memory Location V7633
1
110 123456789Bits
00 0001000
HSIO Mode Setup (BCD)
0000
20 = Quadrature Counter
00 02
0
0
Input
Configuration
Register
Function Hex Code Required
X0 V7634 Phase A
0002 (default) quadrature,
absolute 0 to 99999999
0012 quadrature, absolute
-8388608 to 8388607
1002 quadrature, absolute
0 to 99999999, X4 counting
1012 quadrature, absolute
-8388608 to 8388607,
X4 counting
X1 V7635 Phase B 0000
X2 V7636
Counter Reset (no interrupt) 0007
Discrete filtered input 1006
See page E-5