CP1E-E@@D@-@ CP1E-N@@D@-@/NA20D@-@
Function Specifications
Function
Function description
Minimum cycle time
Makes the cycle time consistent.
Cycle time
management
Monitoring the cycle time
Monitors the cycle time.
High-speed pulses from devices such as a rotary encoder are counted.
High-speed pulse inputs The counted values are stored in the Auxiliary Area.
High-speed
counter
Interrupt tasks can be executed when target is reached or by range comparison.
inputs
Input pulse frequency
measurement
The frequency of pulses input by the PRV instruction is measured.
Relevant interrupt tasks are executed during the cycle when the CPU Unit built-in inputs
turn ON or turn OFF.
Interrupt inputs
Inputs can be read without being affected by cycle time.
Use the quick-response inputs to read signals shorter than the cycle time.
Inputs
Quick-response inputs
Cyclic
refreshing
The CPU Unit’s built-in I/O are cyclically refreshed.
I/O refreshing by immediate refreshing instructions
I/O
refreshing
Immediate
refreshing
Normal
inputs
CPU Unit
built-in
functions
Input constants can be set for Basic I/O Units.
The response time can be increased to reduce the effects of chattering and noise at input
contacts. The response time can be decreased to enable detecting shorter input pulses.
Input response times
Pulse
A pulse signal is output and positioning or speed control is performed with a servo driver
that accepts a pulse input.
Continuous mode for speed control or independent mode for position control can be used.
There are functions for changing to positioning during speed control and for changing the
target value during positioning.
outputs
(Models
with
transistor
outputs
only)
Pulse control
Outputs
Origin positioning
Origin searches and origin returns
PWM outputs
(Models with transistor outputs only)
Pulses for which the duty ratio (ratio between ON time and OFF time during one pulse
cycle) can be set are output.
Normal
All of the outputs on the CPU Unit’s I/O can be turned OFF when an error occurs in RUN
or MONITOR mode.
Load OFF function
outputs
Analog input
Convert analog signal into digital value range from 0 to 6,000.
Convert digital value range from 0 to 6,000 into analog signal.
The Expansion I/O Units and Expansion Units are cyclically refreshed.
I/O refreshing by IORF instruction
Built-in
analog
Analog output
Functions
supported
by both
Cyclic refreshing
I/O
refreshing
Refreshing by IORF
Expansion
I/O Unit and
Expansion
Unit
Expansion
I/O Units
and
Expansion
Units
All of the outputs on Expansion I/O Units and Expansion Units are turned OFF (0000 hex)
when an error occurs in RUN or MONITOR mode.
Load OFF function
Expansion
I/O Units
The response time can be increased to reduce the effects of chattering and noise at input
contacts. The response time can be decreased to enable detecting shorter input pulses.
Input response times
Unit error detection
Expansion
Units
Errors in Expansion Units are detected. The CPU Unit is notified that the Expansion Unit
stopped due to an error.
The status of I/O memory can be held when the operating mode is changed.
The forced-set/reset status can be held when the operating mode is changed.
Holding I/O memory when changing operating modes
Memory
management
functions
Automatic backup to the backup memory
(built-in EEPROM)
Automatic backup of ladder programs and parameter area to the backup memory
(built-in EEPROM)
Peripheral
Peripheral bus (toolbus)
USB port
For communications with programming device (CX-Programmer).
--
Serial port (N/NA-type only)
Host Link commands can be sent from a PT or a computer to read/write I/O memory, and
perform other operations for PLC.
Host Link (SYSWAY) communications
I/O instructions for communications ports (TXD/RXD instructions) can be used for data
transfer with peripheral devices such as bar code readers.
No-protocol communications
NT Link communications
Communic
ations
I/O memory in the PLC can be allocated and directly linked to various PT functions,
including status control areas, status notification areas, touch switches, lamps, memory
tables, and other objects.
Up to ten words per Unit can be shared by up to nine CPU Units, including one Polling Unit
and eight Polled Units.
Serial PLC Links
Note: Programmable Terminal (PT) cannot be connected.
Modbus-RTU commands are sent by the Modbus-RTU Master function. Modbus slaves,
such as inverters, can be easily controlled with serial communications.
Modbus-RTU Easy Master function
Scheduled interrupts
Interrupt inputs
Tasks can be executed at a specified interval (1.0 ms min., Unit: 0.1 ms).
Interrupt tasks are processed when the built-in input turns ON or OFF.
Interrupt
This function counts input pulses with the CPU Unit’s built-in high-speed counter and
executes an interrupt task when the count reaches the preset value or falls within a preset
range (target value or zone comparison).
High-speed counter interrupts
11
OMRON [ OMRON ELECTRONICS LLC ]
