Unidad Ethernet Omron CV500-ETN01

Este es un 10 Mbps Ethernet communication module for CV-series PLCs. Soporta TCP/IP, UDP/IP, Protocolos FINS y funciones del servidor FTP, Permitir la comunicación de datos entre PLC., Computadoras host y otros dispositivos PLC..

Explicación del código del modelo

Segmento de código	Descripción
CV500	Omron SYSMAC CV-series PLC module, compatible with CPU units of CV500, CV1000, CV2000 and CVM1 series
ETN	Identifier for Ethernet communication function
1	Product version number, basic Ethernet unit

Main Specifications

Artículo	Presupuesto	Observaciones
Basic Features
Communication Standard	Ethernet Version 2 (IEEE 802.3 compliant)	CSMA/CD access method supported
Velocidad de transmisión	10 mbps (baseband transmission)	Fixed speed
Transmission Medium	Coaxial cable (10BASE5)	Maximum segment length: 500 metro
máx.. Nodes per Segment	100 nodes	Node spacing must be a multiple of 2.5 metro
Communication Ports	8 concurrent communication ports	Supports simultaneous operation of multiple applications
Supported Protocols	TCP/IP, UDP/IP, FINS, FTP Server	Socket interface communication available
Características eléctricas
Fuente de alimentación	Powered by PLC backplane	máx.. current consumption: 1.7 A (including transceiver)
Transceiver Power Output	12 VCC, máximo. 0.35 A	Powers external transceivers
Conector	15-pin D-sub (IEEE 802.3 compliant)	Equipped with slide lock mechanism
Dimensiones físicas
Dimensiones	34.5×250×98.1 mm (Ancho×Alto×Profundidad)	Standard size for CV-series modules
Peso	500 gramo (aprox. 1.1 libra)	Weight including housing
Posición de montaje	Designated slots on CPU rack or expansion CPU rack	Depends on backplane type; máximo 4 units per PLC
Características funcionales
Network Diagnostics	PING response, inter-node test, error logging	Self-diagnosis and network status monitoring supported
FTP Function	File read & write (for RAM/EEPROM cards)	Requires V1-version CPU and PLC in PROGRAM mode
Data Buffer	TCP: 4 KB (Tx/Rx); UDP: 9 KB (Tx) / 9.016 KB (Rx)	Refer to Appendix F for detailed configuration
máx.. Distancia de comunicación	2.5 km per system (multiple segments via repeaters)	Single segment: máximo. 500 metro

Full Model List (CV-series Ethernet Units)

Modelo	Nombre	Características clave	Escenarios de aplicación
CV500-ETN01	Ethernet Unit	Básico 10 Mbps Ethernet, 8 puertos, FINS/FTP supported	Standard industrial Ethernet communication, HMI & host monitoring
CV500-ETN11	Enhanced Ethernet Unit	More protocols, mayor rendimiento	Complex network environments, multi-system integration
CV500-MC221	Ethernet Module	Rich integrated functions, Modbus TCP supported	Communication with third-party devices, SCADA integration
CV500-ETN21	High-speed Ethernet Unit	10/100 Mbps auto-negotiation	High-volume data transmission, real-time monitoring systems

> Nota: Orders for CV500-ETN01 were suspended in March 2012, and full production ceased around 2017.

Modelos de reemplazo & Comparación de competidores

4.1 Official Omron Replacement Solutions

Modelo Original	Reemplazo recomendado	Compatibilidad	Improvements
CV500-ETN01	CS1W-ETN21	PLC needs to be upgraded to CS1 series	10/100 Mbps auto-negotiation, extended protocol support
CV500-ETN01	CJ1W-ETN21	PLC needs to be upgraded to CJ1 series	Tamaño compacto, mayor rendimiento, PROFINET supported
CV500-ETN01	Built-in Ethernet of NJ/NX Series	Full PLC upgrade required	Ethernet/IP & Gigabit Ethernet supported, integrated motion control

4.2 Cross-brand Competitor Comparison (Compatibilidad de funciones)

Marca	Modelo	Velocidad de transmisión	Supported Protocols	Gama de precios
siemens	PC 343-1	10/100 mbps	TCP/IP, UDP, PROFINET	Medio-alto
mitsubishi	QJ71E71-100	10/100 mbps	TCP/IP, UDP, MC Protocol	Medio
Electricidad Schneider	140NOE77101	10/100 mbps	TCP/IP, UDP, Modbus	Medio-alto
Automatización Rockwell	1756-ENBT	10/100 mbps	TCP/IP, UDP, Ethernet/IP	Alto
Omrón	CV500-ETN01	10 mbps	TCP/IP, UDP, FINS, ftp	Bajo (Interrumpido)

Entorno de aplicación & Casos de la industria

5.1 Escenarios aplicables

Líneas de producción de automatización industrial: Communication between PLCs and host monitoring systems for production data acquisition and remote control.

Sistemas de control de procesos: Data exchange among multiple PLCs for distributed control in chemical and power industries.

Logística & Warehousing Systems: Control of AGVs and conveyors, data interaction with WMS.

Automatización de edificios: Integration of HVAC and security systems for centralized monitoring and management.

Semiconductor Equipment: Precision control and data collection; FTP-based program update.

5.2 Escenarios no recomendados

High-speed Real-time Control: Limited to 10 mbps, not suitable for millisecond-level response requirements.

Modern Industrial Networks: Does not support Gigabit Ethernet, EtherNet/IP and other new protocols.

New Equipment Development: Interrumpido; no official technical support or spare parts supply.

Long-distance Communication: Single segment limited to 500 metro; additional repeaters increase costs for long-range transmission.

5.3 Casos de aplicación típicos

Caso 1: Monitoring System for Automotive Component Production Lines

Configuración: 3 sets of CV1000 PLC + CV500-ETN01, connected via coaxial cables

Funciones: Real-time collection of stamping, welding and assembly data, uploaded to SCADA system

Ventajas: 8 concurrent connections for simultaneous communication with HMI, database server and remote monitoring terminals

Key Technology: FINS for inter-PLC data sharing; FTP for remote program update

Caso 2: Data Acquisition for Food & Beverage Filling Lines

Configuración: CV500 PLC + CV500-ETN01 + Barcode Reader + Weighing Sensor

Funciones: Collect bottle weight, production date and batch information, transmit to MES via Ethernet

Ventajas: UDP for high-speed data transmission; TCP ensures reliability of critical data

Solución de problemas: PING command and inter-node test for quick network fault diagnosis

Solución de problemas & Maintenance Guide

6.1 LED Indicator Diagnosis

Indicador	Color	Estado	Significado	Solución
CORRER	Verde	Apagado	Module not running	Check power supply and restart PLC
ERC	Rojo	En	Invalid node address (out of 1–126) or hardware failure	Reset node address; check module connection
ERH	Rojo	En	PC error, wrong unit number or I/O table setting	Verify unit number; reconfigure I/O table
ERH	Rojo	Parpadeo	IP address unset or invalid	Reconfigure IP address
SD/RD	Orange	Apagado	No data transmission/reception	Check network wiring and communication parameters
ftp	Orange	En	FTP server active	Normal status
TS	Orange	En	Inter-node test in progress	Normal status

6.2 Fallos comunes & Soluciones

Fenómeno de falla	Posibles causas	Soluciones
Communication failure	1. Conflicting unit/node number	1. Power off and reset unit number (00–15) & node number (1–126)
	2. Incorrect IP address	2. Check for IP address conflict
	3. Conexión de cable suelta	3. Inspect locking of 15-pin D-sub connector
	4. Defective transceiver	4. Replace with a functional transceiver
FTP transmission failure	1. Non-V1 CPU version	1. Confirm V1 CPU (p.ej. CV500-CPU01-EV1)
	2. PLC not in PROGRAM mode	2. Switch PLC to PROGRAM mode
	3. Memory card write-protected	3. Disable write protection on memory card
	4. Unsupported card type	4. Use RAM or EEPROM card (EPROM is read-only)
Slow communication speed	1. Overloaded network	1. Reduce concurrent connections (≤8)
	2. Buffer overflow	2. Optimize data volume and expand buffer
	3. Excessive transmission distance	3. Shorten transceiver cable (≤50 m)
Intermittent disconnection	1. Power fluctuation	1. Stabilize PLC power supply
	2. Interferencia electromagnética	2. Separate communication cables from power cables; use shielded cables
	3. Overheated transceiver	3. Ensure good ventilation for transceivers

6.3 Programa de mantenimiento & Notas

Artículo de mantenimiento	Cycle	Notas de operación
Module Cleaning	Cada 3 meses	Power off first; remove dust with dry compressed air. Do not use liquid cleaners.
Connector Inspection	Cada 6 meses	Check for loose connection and pin oxidation; clean if necessary.
Network Test	Cada 1 month	Run PING test and inter-node test to verify network quality.
Firmware Check	Cada 1 año	Confirm firmware version; update with professional tools if required.
Spare Parts Preparation	For critical systems	Prepare replacement modules or overall upgrade plans due to product discontinuation.

Directrices de selección & Referencia rápida

7.1 Three Key Points for CV500-ETN01 Selection

Compatibilidad con PLC: Only for CV/CVM1 series; not compatible with CS/CJ series.
Communication Demand: 10 Mbps speed and 8 concurrent ports for basic Ethernet communication.
Ciclo de vida del producto: Interrumpido. Select replacement models for new projects.

7.2 Troubleshooting Tips

LED off → Check power; LED blinking → Check IP address; steady red LED → Check parameter settings

Data transfer failure → Verify PROGRAM mode; unstable connection → Check EMI shielding; low speed → Reduce network load

7.3 Priority of Replacement Solutions

Series upgrade path: CV500 → CS1 → CJ1 → NJ/NX
Function matching: Ensure compatibility with original protocols (FINS/FTP) and new requirements
Cost evaluation: Balance the cost of module replacement and full system upgrade

Supplementary Content: Entorno de aplicación & Casos de la industria

Entorno de aplicación (Compatibilidad & Restrictions)

1.1 Hardware & Compatibilidad del sistema

PLC Platform: Exclusive to CPU racks and expansion racks of Omron CV500/CV1000/CV2000/CVM1 series. máx.. 4 units per PLC.

Network Topology: 10BASE5 thick coaxial cable. Single segment: máximo. 500 metro; node spacing: multiple of 2.5 metro; máximo. 100 nodes per segment. Total distance up to 2.5 km with repeaters.

Protocolos de comunicación: TCP/IP, UDP/IP, FINS, FTP Server. 8 concurrent ports for multi-device communication.

Electrical Environment: Backplane power supply (1.7 A); external transceiver: 12 VCC / 0.35 A. Temperatura de funcionamiento: 0–55 ºC. Keep away from inverters and large motors to avoid strong electromagnetic interference.

1.2 Escenarios aplicables (Ventajas)

✅ Renovation & Maintenance of Old Production Lines: Network upgrade for legacy CV-series PLCs (replacing traditional RS-232/422).

✅ Medium & Low-speed Data Acquisition: For non-real-time applications such as production status, temperature and pressure monitoring.

✅ Multi-PLC Networking: Networking of 3–10 CV-series PLCs in one workshop for FINS-based data exchange.

✅ Host Monitoring (SCADA): Data exchange between PLCs, industrial PCs and HMIs for process visualization and remote operation.

✅ Remote Program Update: Read/write CPU programs via FTP (RAM/EEPROM card), reducing on-site card plugging operations.

1.3 Restricted Scenarios (Limitaciones)

❌ High-speed Real-time Control: 10 Mbps bandwidth insufficient for motion control, servo synchronization and high-frequency closed-loop control (p.ej. máquinas de embalaje, high-speed machine tools).

❌ New Equipment Development: Discontinued since 2012; risk of spare parts shortage and no official support.

❌ Modern Industrial Networks: Incompatible with 100 Mbps/Gigabit Ethernet, Ethernet/IP, PROFINET, Modbus TCP and other mainstream industrial protocols.

❌ Long-distance & Complex Topology: Complicated cabling for coaxial cables, poor anti-interference performance and high maintenance costs.

Major Industry Applications (Popular in 2000–2010)

2.1 Automotive Component Production Lines (Más común)

Configuración: 3 × CV1000-CPU01-EV1 + CV500-ETN01 + 10BASE5 coaxial network + SCADA industrial PC

Process: Stamping, welding, assembly and inspection. Collect equipment status, output and yield data and upload to MES. FINS for inter-PLC safety interlock (p.ej. welding stations).

Mejora: Replaced old RS-485 multi-drop network to solve slow speed and frequent disconnection. 8 concurrent ports support connection with HMI, MES and remote maintenance terminals simultaneously.

2.2 Alimento & Beverage Filling Lines

Configuración: CV500-CPU01 + CV500-ETN01 + Weighing Sensor + Barcode Reader + FTP Server

Process: Bottle washing, filling, capping, labeling and inspection. UDP for high-speed transmission of bottle weight, batch number and production date; TCP guarantees reliability of yield and alarm data. FTP for remote recipe update.

Valor: Cost-effective PLC-Ethernet-MES closed-loop system, meeting product traceability requirements for food industry.

2.3 Chemical Process Control (A prueba de explosiones & Alta confiabilidad)

Configuración: Redundant CVM1-CPU21-V2 + 2 × CV500-ETN01 (main/backup) + Redundant coaxial network + DCS host

Process: Reactor temperature & pressure control, pipeline flow monitoring and valve interlock. FINS for data exchange with DCS. PING and inter-node test for fast fault location.

Adaptabilidad ambiental: Wide temperature range and vibration resistance, suitable for dusty and humid chemical workshops.

2.4 Automatización de edificios (climatización & Security)

Configuración: CV2000-CPU01 + CV500-ETN01 + Air-conditioning Controller + Fire Alarm System + Access Control System

Funciones: Centralized temperature & humidity control for central air conditioning, fire alarm linkage and access data upload. 8 concurrent ports manage multiple subsystems simultaneously.

Ventajas: Cost-effective and reliable Ethernet solution for large buildings in the 2000s with easy maintenance.

2.5 Semiconductor Equipment (Legacy Non-critical Processes)

Configuración: CV500-CPU01-EV1 + CV500-ETN01 + Wafer Inspection Station + Data Server

Process: Status monitoring and data recording for non-critical processes such as wafer cleaning and packaging. FTP for inspection report upload and remote program download.

Nota: Only applied to legacy equipment and non-high-speed processes. New devices adopt EtherNet/IP or Gigabit Ethernet.