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Built-in Inputs Section 6-1
6-1 Built-in Inputs
6-1-1 Overview
There are 4 kinds of built-in inputs:
• General-purpose inputs
• Interrupt inputs (direct mode or counter mode)
• High-speed counter inputs (with the frequency measurement function)
• Quick-response inputs
The built-in inputs are allocated bits 00 to 09 of CIO 2960. The PLC Setup set-
tings specify which kind of input is used for each bit.
6-1-2 General-purpose Inputs
Overview
The general-purpose input function treats inputs just like inputs in an Input
Unit. The input signals are read during regular I/O refreshing and the input
status is reflected in I/O memory at that time. The input time constant (ON
response time) can be set for the general-purpose inputs.
Bit Allocations
Code Word address Bit Function
IN0 CIO 2960 00 General-purpose input 0
IN1 01 General-purpose input 1
IN2 02 General-purpose input 2
IN3 03 General-purpose input 3
IN4 04 General-purpose input 4
IN5 05 General-purpose input 5
IN6 06 General-purpose input 6
IN7 07 General-purpose input 7
IN8 08 General-purpose input 8
IN9 09 General-purpose input 9
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