Functional Specifications - Omron CP1E-N**S*D Series User Manual

1 Overview and Specifications
1-3-3

Functional Specifications

The following table gives the functional specifications of CP1E CPU Units.
Function
Cycle time Minimum cycle time
manage-
Cycle time monitoring
ment
CPU Unit Inputs
built-in
functions
Outputs
Built-in analog
Expansion Functions sup-
I/O Units ported by both
and Expansion I/O Unit
Expansion and Expansion Unit
Units
Expansion I/O Units
Expansion Units
Memory Holding I/O memory when changing operating modes
manage-
ment func-
Automatic backup to the backup memory
tions
(built-in EEPROM)
Communi- Peripheral USB port
cations
Serial port (N/NA-type only)
Host Link (SYSWAY) communications
No-protocol communications
NT Link communications
Serial PLC Links
Modbus-RTU Easy Master function
Interrupt Scheduled interrupts
Input interrupts
High-speed counter interrupts
1-12
High- High-speed pulse
speed inputs
counters
inputs
Input pulse fre-
quency measurement
Interrupt inputs
Quick-response inputs
Normal I/O Cyclic
inputs refres refreshing
hing
Immediate
refreshing
Input response times
Pulse out- Pulse control
puts (Mod-
els with
transistor
outputs
only )
Origin positioning
PWM outputs (Models with transis-
tor outputs only )
Normal Load OFF function
outputs
Analog input
Analog output
I/O refresh- Cyclic refreshing
ing
Refreshing by IORF
Load OFF function
Input response times
Unit error detection
Peripheral bus (toolbus)
Description
Makes the cycle time consistent.
Monitors the cycle time.
High-speed pulses from devices such as a rotary encoder are counted. The
counted values are stored in the Auxiliary Area.Interrupt tasks can be exe-
cuted when target is reached or by range comparison.
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.
Inputs can be read without being affected by cycle time.
Use the quick-response inputs to read signals shorter than the cycle time.
The CPU Unit's built-in I/O are cyclically refreshed.
I/O refreshing by immediate refreshing instructions.
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 detect-
ing shorter input pulses.
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 con-
trol and for changing the target value during positioning.
Origin searches and origin returns.
Pulses for which the duty ratio (ratio between ON time and OFF time during
one pulse cycle) can be set are output.
All of the outputs on the CPU Unit's I/O can be turned OFF when an error
occurs in RUN or MONITOR mode.
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.
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.
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.
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 .
Automatic backup of ladder programs and parameter area to the backup mem-
ory (built-in EEPROM).
For communications with programming device (CX-Programmer).
Host Link commands can be sent from a PT or a computer to read/write I/O
memory, and perform other operations for PLC.
I/O instructions for communications ports (TXD/RXD instructions) can be used
for data transfer with peripheral devices such as bar code readers.
I/O memory in the PLC can be allocated and directly linked to various PT func-
tions, including status control areas, status notification areas, touch switches,
lamps, memory tables, and other objects.
Up to 10 words of data per Unit can be shared between up to nine CPU Units
(one polling unit and eight polled units).
* A PT cannot be conneected.
Modbus-RTU commands are sent by the Modbus-RTU Master function. Mod-
bus slaves, such as inverters, can be easily controlled with serial communica-
tions.
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.
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).
CP1E CPU Unit Hardware User's Manual(W479)
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