High-Speed Input and
Pulse Output Features
3–53
High-Speed Input and Pulse Output Features
Recall that V7633 is the HSIO Mode Select register. Refer to the diagram below. Use
BCD 60 in the lower byte of V7633 to select the High-Speed Counter Mode. The
DL05 does not use bits 8 - 15 in V7633.
015 14 13 12
Memory Location V7633
11 10 123456789Bits
00000001100
HSIO Mode Setup (BCD)
0000
60 = Discrete Filtered Inputs
00 06
0
Bits 8 - 15 are not used
in V7633.
Choose the most convenient method of programming V7633 from the following:
S Include load and out instructions in your ladder program
S DirectSOFT’s memory editor
S 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 to this.
The configurable discrete input options for Discrete Filtered Inputs Mode are listed
in the table below. The filter time constant (delay) is programmable from 0 to 99 mS
(the input acts as a normal discrete input when the time constant is set to 0). The
code for this selection occupies the upper byte of the configuration register in BCD.
We combine this number with the required “06” in the lower byte to get “xx06”, where
xx = 0 to 99. Input X0, X1, and X2 can only be filtered inputs. Each input has its own
configuration register and filter time constant.
Input Configuration
Register
Function Hex Code
Required
X0 V7634 Filtered Input xx06 (xx = filter delay time)
0 - 99 ms (BCD)
X1 V7635 Filtered Input xx06 (xx = filter delay time)
0 - 99 ms (BCD)
X2 V7636 Filtered Input xx06 (xx = filter delay time)
0 - 99 ms (BCD)
Setup for Mode 60
X Input
Configuration
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