1-1SectionOutline
2
1-1 Outline
The Customizable Counter Units are CS1 Special I/O Units that can be pro-
grammed using a ladder program and provide both standard contact I/O and
special I/O (including pulse inputs, pulse outputs, and analog outputs). (I/O sup-
port depends on the model of the Unit.)
The I/O of a Customizable Counter Unit can be controlled by the ladder program
in it without intervention from the program in the CPU Unit to achieve high-speed
I/O processing. By customizing a Customizable Counter Unit using its I/O, pro-
gramming, and interrupt functions, a wide range of applications requiring high-
speed response can be implemented in a distributed processing system where
the Customizable Counter Unit functions as a coprocessor for the CPU Unit.
Customizable Counter Unit capabilities also facilitate machine modularization
and standardization, and make machine and device maintenance much easier.
Normal inputs
Pulse inputs
High-speed control loop
Normal outputs
Pulse or analog outputs
Input data
Ladder
program
Output data
Customizable Counter Unit
CS1-series CPU Unit
Data exchange
with the CPU Unit
• High-speed I/O processing is enabled by the small-capacity ladder program in
the Customizable Counter Unit that achieves a high-speed cycle. The Custo-
mizable Counter Unit also supports various types of interrupt programming,
enabling it to handle special high-speed applications previously handled by
sensor controllers and microcomputer boards. The Customizable Counter
Unit can also perform part of the functions previously performed by High-
speed Counter Units, Position Control Units, and Analog Output Units.
• Other features include normal interrupts, interval timer interrupts, and high-
speed counter interrupts, in addition to a high-precision timer that uses a pulse
counter (CS1W-HCP22 only), target value interrupts for a pulse output value
(CS1W-HCP22 only), analog output instructions for analog slope control
(CS1W-HCA22 only), and range comparisons for the present value of a high-
precision pulse output counter timer.
1-1-1 Features
Programmable I/O Control
• The program capacity for the ladder program in the Customizable Counter Unit
is 4 Kwords.
• Standard features include 12 contact inputs and 8 contact outputs.
• For special I/O, the CS1W-HCP22 provides 2 pulse inputs and 2 pulse outputs,
while the CS1W-HCA22 provides 2 pulse inputs and 2 analog outputs.
• Pulse inputs on the CS1W-HCP22 and CS1W-HCA22 can be used for a high-
speed counter (50 or 200 kHz, signal phase), and the present value of the
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