OMRON

Product Positioning
It belongs to the V680 series industrial RFID (Identification Recognition) controller, also known as the industrial reader-head master controller. It is the core host of Omron’s industrial radio frequency identification system, specifically used for high-speed reading and writing, data storage and traceability of RFID electronic tags on workpieces, carriers, and fixtures on the production line, and is integrated with the previous PLC and servo driver to form a complete automated production line traceability system.
Model Segmentation Explanation
V680: Omron industrial high-frequency RFID system series code, following the ISO15693 industrial radio frequency standard;
CA5D02: Controller specification code
CA = ID controller host;
02 = Dual channels (CH1 + CH2), capable of simultaneously connecting 2 sets of RFID reading and writing antenna amplifiers;
D = DC24V direct current power supply type;
V2: Hardware version second generation, optimizing communication stability and anti-interference ability.
II. Core Function (What does the industrial RFID controller do)
Brief understanding: This equipment is the “electronic card reader host” of the factory assembly line. The entire system consists of three parts:
This controller (V680-CA5D02-V2);
External RFID reading and writing antenna amplifier (connected to CH1/CH2 port);
RFID radio frequency electronic tags attached to workpieces / carriers / fixtures. Core function
Tag data reading and writing
For industrial RFID tags, it can read the unique ID, and write and read production data (process number, batch, defect record, processing parameters, output quantity). The tag can be repeatedly erased for over ten thousand times and is resistant to high-temperature oil stains. It is more durable than barcodes / QR codes.
Dual-channel independent control
CH1 and CH2 are completely independent and can simultaneously manage the identification and reading/writing of two production lines and two workstations, saving equipment costs.
Connect to PLC / upper computer
Through the RS232C/RS485 serial port, the read tag data is transmitted to the previously introduced CJ1M, CP2E series PLC. The PLC automatically controls the servo and cylinder based on the tag information to complete the corresponding process.
Digital IO trigger control
It comes with input and output terminals and can be externally connected with photoelectric sensors (trigger reading of the tag when the workpiece arrives at the reading area), output signals to the alarm light, and sorting solenoid valve.
Fault self-diagnosis
Real-time monitoring of antenna disconnection, no signal from the tag, and reading/writing errors. Through the ERR alarm terminal, a fault signal is output to facilitate equipment maintenance.
III. Detailed disassembly of all interfaces (refer to the pictures)

1. Left power supply terminal 24VDC
   Terminal: +24V, 0V, GR grounding;
   Function: Power supply for the entire machine DC24V, standard power supply for industrial control cabinet, power ≤ 15W.
2. RS-232C 9-pin DB9 serial port
   Purpose: Directly connect to the computer for parameter debugging, for touch screens, industrial upper computer; Omron dedicated communication protocol + universal Modbus RTU.
3. Green terminal block for RS-422/RS-485 (RDA-/RDB+, SDA-/SDB+, SG)
   Industrial bus communication port, supports hand-in-hand networking of multiple controllers, long-distance (up to 500 meters) communication with PLC, compatible with CJ1M/CP2E PLC serial port module.
4. Middle I/O terminal block (10 digital input/output points)
   Input (5 channels)
   TRG1, TRG2: two trigger inputs, connected to photoelectric switches, automatically start reading the tag when the workpiece arrives at the reading area;
   RST: reset input, externally connected button to clear fault alarms;
   IN1, IN2: general signal input, can be connected to safety doors, workpiece arrival signals.
   Output (5 channels)
   OUT1, OUT2: OK signal output for reading/writing completion (normal identification of the tag is conductive);
   ERR1, ERR2: channel failure output (no tag, antenna disconnection when alarm is conductive);
   COM1, COM2: two output common terminals, 24V transistor output, maximum 100mA, directly drive indicator lights, buzzers.
5. Right CH1, CH2 circular aviation connector
   Dual-channel antenna amplifier interface, each channel can connect a set of RFID reading and writing antennas, completely independent and non-interfering, supports simultaneous reading/writing of two workstation tags.
6. DIP switches (SW1~SW6)
   SW1/SW2/SW3/SW4: set communication station number, serial port baud rate;
   SW5 TEST: debugging mode switch, when enabled, manual trigger reading/writing test can be performed;
   SW6 ON: communication protocol switch (Omron dedicated protocol / Modbus RTU).
7. Status indicator lights RUN/RST/COMM
   RUN: power operation indicator light;
   RST: reset / fault light;
   COMM: flashing light for serial port communication reception and transmission, quickly determines whether the communication is normal.
   IV. Key hardware specifications
   Channel quantity: 2 independent reading and writing channels CH1, CH2;
   Radio frequency standard: ISO/IEC18000-3 (13.56MHz high-frequency industrial RFID); Label storage: The corresponding label memory ranges from 1K to 8K bytes, capable of storing a large amount of production traceability data;
   Communication interface: RS232C + RS422/485 dual serial ports;
   IO specification: 5 DC24V inputs, 5 NPN transistor outputs;
   Power supply: DC20.4~26.4V (standard 24V industrial power supply);
   Protection: IP20 indoor electrical control cabinet installation, suitable for 0~55℃ factory environment.
   V. Typical application scenarios (used in conjunction with your servo and PLC)
   Electronic manufacturing SMT/PCB production line
   Load carrier trays with RFID labels, record board card batches and processes, PLC reads the labels and controls the servo to precisely position for printing, pasting, and inspection stations;
   Automated assembly equipment (screw machines, dispensing machines)
   The workholding fixtures are internally equipped with RFID, read the product model, and automatically switch servo motion programs and processing parameters;
   Packaging, cutting assembly line
   The packaging material tray labels record specifications and quantities, and the dual channels simultaneously control the two traceability workstations of incoming and outgoing materials;
   Automotive component processing
   RFID traceability for stamping and machining fixtures, record processing times and defective product information, achieve full process traceability;
   Warehouse sorting, logistics conveyor line
   Labels on material turnover boxes, the controller reads the data and then PLC controls the servo transplanting mechanism to automatically sort and divert. Additional Explanation
   The single-channel model of the same series is V680-CA5D01-V2. This 02 indicates dual channels, allowing for the connection of two sets of reading and writing antennas simultaneously;
   It belongs to industrial-specific RFID, different from the civilian NFC tags. It has strong resistance to oil stains, anti-metal interference, high-speed reading and writing, and long-life industrial characteristics;
   The debugging software uses the special V680 tool provided by Omron. It can also directly receive and send reading and writing instructions through the PLC ladder diagram, without the need for a separate upper-level software.

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