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DL05 Micro PLC User Manual, 6th Edition, Rev. C

E–5

Appendix E: High-speed Input and Pulse Output Features

Configuring the HSIO Mode

If you have chosen a mode suited to the high-speed I/O needs of your application, we’re ready

to proceed to configure the PLC to operate accordingly. In the block diagram below, notice

the V-memory detail in the expanded CPU block. V-memory location V7633 determines the

functional mode of the high-speed I/O circuit. This is the most important V-memory

configuration value for HSIO functions!

The contents of V7633 is a 16-bit word, to be entered in binary–coded decimal. The figure

below defines what each 4-bit BCD digit of the word represents.

Bits 0 – 7 define the mode number 10, 20.. 60 previously referenced in this chapter. The

example data “2050” shown selects Mode 50 – Pulse Catch (BCD = 50). The DL05 PLC

ignores bits 8 - 12, 14 and 15 in V7633 (see System V-memory Map on page E-26).

Configuring Inputs X0 – X2

In addition to configuring V7633 for the HSIO mode, you’ll need to program the next three

locations in certain modes according to the desired function of

input points X0 – X2. Other memory locations may require

configuring, depending on the HSIO mode (see the

corresponding section for particular HSIO modes).

Output Circuit

Input Circuit

CPU

PLC

DL05

High-Speed

I/O Circuit

X0 - X2

Y0 - Y1

X3 -X7

Y2 - Y5

V-Memory

V7633

xxxx

Mode Select

I/O Data

V-Memory

V7633 xxxxMode

V7634 xxxxX0

V7635 xxxxX1

V7636 xxxxX2

014 13 12

Memory Location V7633

11 10 123456789Bits

00 0010100

HSIO Mode Setup (BCD)

0000

10 = High-Speed Counting Mode

20 = Quadrature Counting Mode

30 = Pulse Output Train

40 = High-Speed Interrupts

50 = Pulse Catching

60 = Discrete Filtered Inputs (default)

Bits 8 - 12, 14 and 15 are

not used in V7633.

Bit 13 is used to power-up

in RUN, only if Mode Switch

is in TERM position.

1 2 3 4 5 6 7 8 9 10 ... 53 54

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