OMRON

Basic Specification
This is an economic all-in-one small PLC (Programmable Logic Controller) of the Omron CP2E series, belonging to the new generation of compact integrated PLCs. The body integrates all I/O, power supply, and communication interfaces, and does not require additional backplane expansion. It is mainly used for the control of small and medium-sized stand-alone automation equipment and is a cost-effective alternative to the CJ1M modular PLC series.

CP2E series complete machine PLC

The same series CP2E-N30 models
Model breakdown explanation
CP2E: Product series name, Omron’s new generation economical small all-in-one PLC, balancing logic + simple motion control;
E: Basic model (economic type, with Ethernet port; N models have no Ethernet port);
20: Total I/O points = 20 points (12 points of input + 8 points of output);
DR: Output type code
D = DC24V transistor input;
R = Relay contact output (can handle both AC and DC loads, driving solenoids, indicator lights);
A: Power supply specification AC100~240V AC mains power supply; the suffix D represents DC24V direct power supply.
II. Core purposes (the role of PLC)
PLC is the brain of the entire control system of automated equipment. This CP2E-E20DR-A is responsible for the entire process automatic control of the entire set of equipment:
Signal acquisition: read inductive switches, proximity sensors, start/stop buttons, limit switches, etc. input signals;
Logic program operation: run ladder diagram programs, automatically determine the sequence of equipment actions, interlocks, fault alarms;
Load drive output: relay output controls cylinder solenoids, indicator lights, small motor contactors;
Simple motion control: built-in high-speed pulse output, can directly drive servo/step motors for single-axis positioning (compatible with your previous R88D-WN servo driver);
Communication interaction: comes with Ethernet, RS232/485 serial ports, for touch screens HMI, frequency converters, upper computers, barcode scanners;
Fault monitoring: real-time detection of equipment abnormalities, triggering alarm shutdown, recording fault codes.
The core difference from the previous model CJ1M-CPU22
CJ1M: Modular split type, requires a base board and expansion modules, suitable for multi-axis, complex production lines;
CP2E: Integrated whole machine, the body comes with all IO, smaller in size and lower in price, suitable for single-machine small equipment.
III. Detailed disassembly of the body hardware structure

1. Top terminal block (power + IO connection area)
   Left side power terminal
   Marked “AC”, connected to household / factory mains AC100~240V, providing power for the PLC whole machine; internally comes with DC24V sensor power supply, directly supplies power to inductive switches and limit switches, no need for additional power supply.
   Middle input terminal (IN)
   12 DC24V digital inputs, connected to various detection sensors, operation buttons, safety door switches.
   Right side output terminal (OUT)
   8 relay contact outputs (R suffix characteristic):
   Advantage: contact withstand voltage range wide, AC220V/DC24V loads can drive;
   Limitation: relay mechanical contacts, not suitable for ultra-high frequency pulse output; for high-speed positioning, select DT transistor model.
   Terminal block printed schematic diagram
   The inner side of the cover is printed with a complete IO connection diagram, without having to consult the manual, can quickly connect, convenient for on-site debugging and maintenance.
2. Front communication and debugging interface
   Ethernet RJ45 port (unique to E series)
   Direct connection of computer network cable for downloading programs, online monitoring;
   For touch screens, upper computers, multiple PLC networking; supports Modbus TCP, FINS Omron dedicated protocol.
   Peripheral RS232 port
   Old programming cables, small touch screen communication interface;
   Expansion slot
   The body side can be selected to install RS485 communication board, analog quantity acquisition board, high-speed counting board, for slight expansion of functions.
3. Other body structures
   Bottom yellow snap: standard 35mm DIN rail snap, directly snaps onto the electrical control cabinet rail for installation;
   Heat dissipation honeycomb holes: the entire machine’s heat dissipation air duct, ensuring stable operation for a long time; Status indicator lights: RUN (running), ERR (fault), communication, pulse output status. Quickly determine the working status of the equipment;
   Built-in lithium battery: Saves programs and register data when power is lost, no need for backup storage card.
   IV. Key Hardware Specifications of CP2E-E20DR-A
   IO points: 20 points for the entire machine (12 inputs / 8 relay outputs);
   Power supply: AC 100~240V wide-range AC power supply;
   Motion function: Built-in 2-axis 100kHz high-speed pulse output, supports origin return, absolute/relative positioning, can directly control 750W servo;
   Program capacity: 8K step program, sufficient for the logic of small single-machine equipment;
   Communication standard: Ethernet + RS232, RS485 is optional;
   Program software: Uses Omron CX-One (CX-Programmer) for programming;
   Operating environment: 0~55℃ industrial electrical control cabinet, dust-proof, anti-electromagnetic interference.
   V. Typical Application Scenarios (Combined with Your Previous Servo)
   This PLC positioning economical single-machine equipment is perfectly suitable for small automation equipment of the R88D series servo:
   Small packaging machinery: Desktop labeling machine, small shearing machine, simple filling equipment;
   Electronic processing equipment: Desktop automatic screwing machine, small dispensing machine, desktop soldering machine;
   Simple transplant equipment: Single-axis module, small loading and unloading fixtures, indexing positioning table;
   Line auxiliary equipment: Conveyor belt start/stop, fixture positioning, sorting mechanism;
   Small test fixtures: Product pressure test, conduction detection, automatic fixture;
   Textile / light industry equipment: Small winding, deviation correction, cutting single-machine.
   VI. Supplementary Advantage Explanation
   High cost performance: Integrated design, no need for additional base plate, power module, the overall cost is much lower than the CJ1 modular solution;
   Compact installation: Compact in size, suitable for desktop and tabletop equipment with limited space;
   Easy debugging: Comes with Ethernet, directly connect the network cable to the computer, no special programming cable required; The cover is internally equipped with wiring diagrams, simple on-site maintenance;
   Strong compatibility: Program syntax compatible with CJ1 series, engineers familiar with Omron programming can quickly get started, can be used with the R88D full series servo drives for positioning control.
4. For more models, please contact via email: plcvarious@foxmail.com