Omron CV500-ETN01 Ethernet-Einheit

This is a 10 Mbps Ethernet communication module for CV-series PLCS. Es unterstützt TCP/IP, UDP/IP, FINS-Protokolle und FTP-Serverfunktionen, Ermöglicht die Datenkommunikation zwischen SPSen, Host-Computer und andere SPS-Geräte.

Erklärung des Modellcodes

Codesegment	Beschreibung
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

Artikel	Spezifikationen	Bemerkungen
Basic Features
Communication Standard	Ethernet Version 2 (IEEE 802.3 konform)	CSMA/CD access method supported
Übertragungsrate	10 Mbit/s (baseband transmission)	Fixed speed
Transmission Medium	Coaxial cable (10BASE5)	Maximum segment length: 500 M
Max. Nodes per Segment	100 nodes	Node spacing must be a multiple of 2.5 M
Communication Ports	8 concurrent communication ports	Supports simultaneous operation of multiple applications
Unterstützte Protokolle	TCP/IP, UDP/IP, FINS, FTP Server	Socket interface communication available
Elektrische Eigenschaften
Stromversorgung	Powered by PLC backplane	Max. current consumption: 1.7 A (including transceiver)
Transceiver Power Output	12 VDC, max. 0.35 A	Powers external transceivers
Stecker	15-pin D-sub (IEEE 802.3 konform)	Equipped with slide lock mechanism
Physikalische Dimensionen
Abmessungen	34.5×250×98.1 mm (B×H×T)	Standard size for CV-series modules
Gewicht	500 G (ca. 1.1 lb)	Weight including housing
Mounting Position	Designated slots on CPU rack or expansion CPU rack	Depends on backplane type; maximal 4 units per PLC
Funktionsmerkmale
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
Max. Communication Distance	2.5 km per system (multiple segments via repeaters)	Single segment: max. 500 M

Full Model List (CV-series Ethernet Units)

Modell	Name	Hauptmerkmale	Anwendungsszenarien
CV500-ETN01	Ethernet Unit	Basic 10 Mbps Ethernet, 8 Häfen, FINS/FTP supported	Standard industrial Ethernet communication, HMI & host monitoring
CV500-ETN11	Enhanced Ethernet Unit	More protocols, höhere Leistung	Complex network environments, multi-system integration
CV500-MC221	Ethernet-Modul	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

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

Ersatzmodelle & Konkurrenzvergleich

4.1 Official Omron Replacement Solutions

Originalmodell	Empfohlener Ersatz	Kompatibilität	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	Kompakte Größe, höhere Leistung, 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 (Function Compatibility)

Marke	Modell	Übertragungsrate	Unterstützte Protokolle	Preisklasse
Siemens	CP 343-1	10/100 Mbit/s	TCP/IP, UDP, PROFINET	Mittelhoch
Mitsubishi	QJ71E71-100	10/100 Mbit/s	TCP/IP, UDP, MC Protocol	Medium
Schneider Electric	140NOE77101	10/100 Mbit/s	TCP/IP, UDP, Modbus	Mittelhoch
Rockwell Automation	1756-ENBT	10/100 Mbit/s	TCP/IP, UDP, EtherNet/IP	Hoch
Omron	CV500-ETN01	10 Mbit/s	TCP/IP, UDP, FINS, FTP	Niedrig (Auslaufmodell)

Anwendungsumgebung & Branchenfälle

5.1 Anwendbare Szenarien

Produktionslinien für die industrielle Automatisierung: Communication between PLCs and host monitoring systems for production data acquisition and remote control.

Process Control Systems: Data exchange among multiple PLCs for distributed control in chemical and power industries.

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

Gebäudeautomation: Integration of HVAC and security systems for centralized monitoring and management.

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

5.2 Nicht empfohlene Szenarien

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

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

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

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

5.3 Typische Anwendungsfälle

Fall 1: Monitoring System for Automotive Component Production Lines

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

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

Vorteile: 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

Fall 2: Data Acquisition for Food & Beverage Filling Lines

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

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

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

Fehlerbehebung: PING command and inter-node test for quick network fault diagnosis

Fehlerbehebung & Wartungshandbuch

6.1 LED Indicator Diagnosis

Indikator	Farbe	Status	Bedeutung	Lösung
RUN	Grün	Aus	Module not running	Check power supply and restart PLC
ERC	Rot	An	Invalid node address (out of 1–126) or hardware failure	Reset node address; check module connection
ERH	Rot	An	PC error, wrong unit number or I/O table setting	Verify unit number; reconfigure I/O table
ERH	Rot	Blinking	IP address unset or invalid	Reconfigure IP address
SD/RD	Orange	Aus	No data transmission/reception	Check network wiring and communication parameters
FTP	Orange	An	FTP server active	Normal status
TS	Orange	An	Inter-node test in progress	Normal status

6.2 Häufige Fehler & Lösungen

Fehlerphänomen	Mögliche Ursachen	Lösungen
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. Loose cable connection	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 (z.B. 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. Leistungsschwankung	1. Stabilize PLC power supply
	2. Elektromagnetische Störungen	2. Separate communication cables from power cables; Verwenden Sie abgeschirmte Kabel
	3. Overheated transceiver	3. Ensure good ventilation for transceivers

6.3 Wartungsplan & Notizen

Wartungsartikel	Zyklus	Betriebshinweise
Module Cleaning	Jeder 3 Monate	Power off first; remove dust with dry compressed air. Do not use liquid cleaners.
Connector Inspection	Jeder 6 Monate	Check for loose connection and pin oxidation; clean if necessary.
Network Test	Jeder 1 month	Run PING test and inter-node test to verify network quality.
Firmware Check	Jeder 1 Jahr	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.

Auswahlrichtlinien & Kurzreferenz

7.1 Three Key Points for CV500-ETN01 Selection

PLC Compatibility: Only for CV/CVM1 series; not compatible with CS/CJ series.
Communication Demand: 10 Mbps speed and 8 concurrent ports for basic Ethernet communication.
Product Lifecycle: Auslaufmodell. 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: Anwendungsumgebung & Branchenfälle

Anwendungsumgebung (Kompatibilität & Restrictions)

1.1 Hardware & Systemkompatibilität

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

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

Kommunikationsprotokolle: 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 VDC / 0.35 A. Betriebstemperatur: 0–55 °C. Keep away from inverters and large motors to avoid strong electromagnetic interference.

1.2 Anwendbare Szenarien (Vorteile)

✅ 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 (Einschränkungen)

❌ High-speed Real-time Control: 10 Mbps bandwidth insufficient for motion control, servo synchronization and high-frequency closed-loop control (z.B. Verpackungsmaschinen, high-speed machine tools).

❌ New Equipment Development: Seitdem eingestellt 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 (Am häufigsten)

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

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

Verbesserung: 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 Essen & Beverage Filling Lines

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

Process: Bottle washing, Füllung, 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.

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

2.3 Chemische Prozesskontrolle (Explosionsgeschützt & Hohe Zuverlässigkeit)

Konfiguration: 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.

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

2.4 Gebäudeautomation (HVAC & Sicherheit)

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

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

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

2.5 Semiconductor Equipment (Legacy Non-critical Processes)

Konfiguration: 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.

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