Omron CJ2 CPU UNIT User Manual page 64

1 Overview
Functions
Pulse I/O Pulse Input Normal Inputs
Func- Functions
Interrupt Inputs
*3
tions
Quick-response Inputs
High-speed Counter Inputs
Pulse Out- Normal Outputs
put Func-
Pulse Outputs
tions
PWM Outputs
Origin Searches
Memory Holding I/O Memory when Changing Operating
Manage- Modes
ment
File Memory
Built-in Flash Memory
EM File Function
Storing Comments
EM Configuration
Memory Automatic File Transfer at Startup
Cards
Program Replacement during PLC Operation
Function for Reading and Writing Data from a
Memory Card
*3 Supported only by CJ2M CPU Unit with unit version 2.0 or later. A Pulse I/O Module must be mounted.
1-22
Description
Input signals are read during I/O refreshing and stored in I/O memory.
An interrupt task can be started when an input signal turns ON or turns
OFF.
Input signals that are shorter than the cycle time are read and stored in
I/O memory.
High-speed pulse signals are counted. Interrupt tasks can also be
started.
The status of I/O memory is output during I/O refreshing.
A pulse signal is output with the specified frequency and number of
pulses at a fixed duty ratio (50%).
A pulse signal is output at the specified duty ratio.
The origin point of the machine is determined according to the specified
origin search parameters while actually outputting pulses and using the
origin and origin proximity input signals as conditions. (Pulse inputs and
outputs are also used for this function.)
The status of I/O memory can be held when the operating mode is
changed or power is turned ON. The forced-set/reset status can be held
when the operating mode is changed or power is turned ON.
Files (such as program files, data files, and symbol table files) can be
stored in Memory Card, EM File Memory, or Comment Memory.
The user program and Parameter Area can be backed up to an internal
flash memory when they are transferred to the CPU Unit.
Parts of the EM Area can be treated as file memory.
I/O comments can be stored as symbol table files in a Memory Card, EM
file memory, or comment memory.
EM Area can be set as trace memory or EM file memory.
A program file and parameter files can be read from a Memory Card
when the power is turned ON.
User programs can be transferred from a Memory Card to CPU Unit dur-
ing operation.
Data in I/O memory in the CPU Unit can be written to a Memory Card in
CSV/TXT format. Data in CSV/TXT format in the Memory Card can be
read to I/O memory in the CPU Unit.
CJ2 CPU Unit Hardware User's Manual