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L-4251A
2*Ethernet 10*DI 4*DO 2 Counter Modbus Module
330,00 EUR
including VAT 392.70 EUR
- Dual Ethernet Ports with Daisy‑Chain and Auto‑Bypass:
Two RJ‑45 10/100 Base‑T ports allow cascading multiple modules without external switches. The auto‑bypass circuit maintains network continuity within ~1 s even if a module loses power.
- Mixed I/O Configuration:
Combines digital inputs, digital outputs, and counter channels in one compact device, reducing system cost and wiring complexity.
- Industrial Modbus/TCP and UDP Support:
Fully compatible with standard Modbus/TCP controllers and SCADA/HMI software. UDP mode allows broadcast of I/O data streams to up to eight hosts simultaneously.
- High Isolation and Protection:
3750 Vrms optical isolation between I/O channels and logic circuits ensures robust operation in noisy industrial environments.
- Programmable Power‑On and Safe Values:
User‑defined output states at power‑up or after watchdog timeout enhance system safety.
- Dual Watchdog System:
Hardware watchdog for module self‑recovery and host watchdog for communication supervision.
- Advanced Output Modes:
Supports pulse output, auto‑off (monostable) operation, high/low delay switching, and DIO synchronization (mirroring DI to local or remote DO).
- Counter and Latch Functions:
Each DI channel can act as a 300 Hz software counter; two dedicated hardware counters support up to 4.5 kHz.
- Compact Industrial Design:
DIN‑rail or wall‑mountable aluminum enclosure with LED indicators for power, communication, and channel status.
Two RJ‑45 10/100 Base‑T ports allow cascading multiple modules without external switches. The auto‑bypass circuit maintains network continuity within ~1 s even if a module loses power.
- Mixed I/O Configuration:
Combines digital inputs, digital outputs, and counter channels in one compact device, reducing system cost and wiring complexity.
- Industrial Modbus/TCP and UDP Support:
Fully compatible with standard Modbus/TCP controllers and SCADA/HMI software. UDP mode allows broadcast of I/O data streams to up to eight hosts simultaneously.
- High Isolation and Protection:
3750 Vrms optical isolation between I/O channels and logic circuits ensures robust operation in noisy industrial environments.
- Programmable Power‑On and Safe Values:
User‑defined output states at power‑up or after watchdog timeout enhance system safety.
- Dual Watchdog System:
Hardware watchdog for module self‑recovery and host watchdog for communication supervision.
- Advanced Output Modes:
Supports pulse output, auto‑off (monostable) operation, high/low delay switching, and DIO synchronization (mirroring DI to local or remote DO).
- Counter and Latch Functions:
Each DI channel can act as a 300 Hz software counter; two dedicated hardware counters support up to 4.5 kHz.
- Compact Industrial Design:
DIN‑rail or wall‑mountable aluminum enclosure with LED indicators for power, communication, and channel status.
Comprehensive Product Summary – EDAM‑4251A Ethernet I/O Module
### 1. Product Overview
Product Name: EDAM‑4251A
Model Number: L‑4251A
Series: EDAM‑4200 Series – Digital I/O and Counter Modules
Article Number: L‑4251A
Manufacturer: Inlog Technology Co., Ltd. (www.inlog.com.tw)
The EDAM‑4251A is a high‑density, mixed digital input/output and counter module designed for industrial Ethernet data acquisition and control applications. It integrates dual 10/100 Base‑T Ethernet ports with daisy‑chain and auto‑bypass functionality, enabling flexible network topologies and high reliability. The module provides 10 isolated wet‑contact digital inputs, 4 isolated open‑collector digital outputs, and 2 high‑speed hardware counter channels, all protected by 3750 Vrms optical isolation. It supports the Modbus/TCP and UDP protocols for open connectivity with SCADA, PLC, and HMI systems.
### 2. Key Features
- Dual Ethernet Ports with Daisy‑Chain and Auto‑Bypass:
Two RJ‑45 10/100 Base‑T ports allow cascading multiple modules without external switches. The auto‑bypass circuit maintains network continuity within ~1 s even if a module loses power.
- Mixed I/O Configuration:
Combines digital inputs, digital outputs, and counter channels in one compact device, reducing system cost and wiring complexity.
- Industrial Modbus/TCP and UDP Support:
Fully compatible with standard Modbus/TCP controllers and SCADA/HMI software. UDP mode allows broadcast of I/O data streams to up to eight hosts simultaneously.
- High Isolation and Protection:
3750 Vrms optical isolation between I/O channels and logic circuits ensures robust operation in noisy industrial environments.
- Programmable Power‑On and Safe Values:
User‑defined output states at power‑up or after watchdog timeout enhance system safety.
- Dual Watchdog System:
Hardware watchdog for module self‑recovery and host watchdog for communication supervision.
- Advanced Output Modes:
Supports pulse output, auto‑off (monostable) operation, high/low delay switching, and DIO synchronization (mirroring DI to local or remote DO).
- Counter and Latch Functions:
Each DI channel can act as a 300 Hz software counter; two dedicated hardware counters support up to 4.5 kHz.
- Compact Industrial Design:
DIN‑rail or wall‑mountable aluminum enclosure with LED indicators for power, communication, and channel status.
### 3. Technical Specifications
Ethernet Interface:
- 2 × RJ‑45 ports, 10/100 Base‑T (IEEE 802.3/802.3u compliant)
- Supports Auto‑MDI/MDI‑X
- Daisy‑chain topology with auto‑bypass protection
- Communication protocols: TCP/IP, UDP, ICMP, ARP, Modbus/TCP
- Data rate: up to 100 Mbps
- Max segment length: 100 m (50 m per link when auto‑bypass active)
Digital Inputs (Wet Contact):
- Channels: 10 × DI (DI0–DI9)
- Type: Isolated single‑ended, common source/ground
- Logic level 0 (active): +5 V to +30 V DC
- Logic level 1 (inactive): ≤ +2 V DC
- Input impedance: 2 kΩ
- Optical isolation: 3750 Vrms
- Software counter: 300 Hz, 32‑bit + 1‑bit overflow
- Input latch function supported
Digital Outputs:
- Channels: 4 × DO (DO0–DO3)
- Type: Isolated open‑collector (NPN)
- Load voltage: +5 V to +30 V DC
- Max load current: 500 mA per channel
- Pulse output frequency: up to 300 Hz
- Optical isolation: 3750 Vrms
- Programmable modes: direct, pulse, delay, auto‑off, DIO sync
Hardware Counters:
- Channels: 2 × C0 = DI10, C1 = DI11
- Input type: Differential, wet contact
- Logic 1: +5 V to +30 V DC max
- Logic 0: ≤ +2 V DC
- Input impedance: 2 kΩ
- Max frequency: 4.5 kHz
- Count range: 4 294 967 285 (32‑bit + overflow)
- Optical isolation: 3750 Vrms
Power Requirements:
- Supply voltage: +10 V DC to +30 V DC (unregulated)
- Typical consumption: 3.5 W
- Protection: Over‑voltage and reverse polarity
Physical Characteristics:
- Dimensions: 130 mm × 96 mm × 26 mm
- Weight: approx. 250 g
- Mounting: DIN‑rail or wall mount
- Wiring: 14 – 28 AWG screw terminal blocks
- Enclosure: Industrial‑grade metal housing
Environmental:
- Operating temperature: –10 °C to +70 °C
- Storage temperature: –25 °C to +85 °C
- Humidity: 5 – 95 % RH, non‑condensing
- Atmosphere: No corrosive gases
### 4. Functionality
The EDAM‑4251A operates as an Ethernet‑based remote I/O node. It acquires digital input states, counts pulses, and drives digital outputs through Modbus/TCP or UDP commands. The internal microcontroller manages I/O scanning, communication, and watchdog supervision.
Typical Use Cases:
- Factory automation and process monitoring
- Machine status and alarm collection
- Remote control of actuators, solenoids, or lamps
- Counter applications for flow meters, encoders, or proximity sensors
- Integration with SCADA/HMI systems via Modbus/TCP
- Distributed I/O expansion for PLCs or embedded controllers
Compatibility:
Works with any Modbus/TCP‑compliant master, including PLCs, DCS, and SCADA software. Supported by Inlog’s TCPDAQ ActiveX and DLL APIs for custom PC applications.
### 5. Components & Accessories
Included in Package:
- EDAM‑4251A module (pre‑assembled with DIN‑rail clip)
- Panel mounting bracket
- Product CD (manuals, drivers, utilities)
- Startup manual (EDAM‑4250/4251A v1.0)
Optional Accessories:
- External 24 V DC power supply
- Ethernet cables (Cat 5e or higher)
- Additional DIN‑rail mounting hardware
Connectors:
- Dual RJ‑45 Ethernet ports
- Screw terminals for power (+Vs, GND) and I/O channels
- INIT switch on rear panel for configuration reset
### 6. Installation & Setup
Power Supply Wiring:
Connect +Vs (10–30 V DC) and GND to the screw terminals. Use at least 2 mm wire diameter. Ripple ≤ 200 mV p‑p.
Network Connection:
Use standard Cat 5/5e UTP cables. Each segment ≤ 100 m. Daisy‑chain modules via the two RJ‑45 ports. Auto‑bypass ensures network continuity if a module loses power.
Mounting:
Attach to DIN rail or wall surface. Ensure adequate ventilation and grounding.
Initialization:
Each module must have a unique IP address. Factory default:
- IP 10.0.0.1 Subnet 255.255.255.0 Gateway 10.0.0.1
- DHCP disabled, Web server disabled, Module ID 01, Password 00000000
Use the INIT switch to restore defaults or change network settings. Configuration is performed via the EDAM Ethernet I/O Utility or Modbus/TCP commands.
LED Indicators:
- Power (Yellow): ON = Power applied
- Link (Green): ON = Ethernet connected
- COM (Green blink): Data transmission activity
- Channel LEDs: Show DI/DO status
### 7. Performance & Capabilities
- Digital Input Frequency: 300 Hz (software counter)
- Hardware Counter Frequency: 4.5 kHz max
- Digital Output Pulse Rate: 300 Hz max
- Network Throughput: 100 Mbps full‑duplex
- Auto‑Bypass Recovery: ≈ 1 s after power loss
- Power Consumption: 3.5 W typical
- Response Time: < 10 ms typical for Modbus/TCP transactions
- Daisy‑Chain Distance: ≤ 100 m total (50 m per segment with bypass active)
Limitations:
- Total Ethernet segment length limited to 100 m per 100BASE‑TX standard.
- Output load per channel ≤ 500 mA; external flyback diodes recommended for inductive loads.
- Operating humidity above 30 % RH recommended to minimize static discharge.
### 8. Standards & Compliance
- Ethernet Standards: IEEE 802.3 (10 Base‑T), IEEE 802.3u (100 Base‑TX)
- Communication Protocols: Modbus/TCP, UDP/IP, ICMP, ARP
- Electrical Isolation: 3750 Vrms optical isolation between I/O and logic
- EMC/ESD Protection: Designed for industrial environments
- Safety: Over‑voltage and reverse‑polarity protection on power input
- Environmental: RoHS‑compliant materials
- Mounting & Wiring: DIN EN 50022 rail compatible
### 9. Additional Information
Software Support:
- EDAM Ethernet I/O Utility: Windows‑based configuration and monitoring tool.
- TCPDAQ ActiveX Control: For Visual Basic, Delphi, C++, and C# development.
- TCPDAQ DLL API: Comprehensive function library for Modbus/TCP and UDP communication.
- Web Server Interface: Built‑in HTTP server for remote monitoring via browser.
Firmware & Commands:
Supports ASCII and Modbus/TCP command sets for reading/writing I/O, configuring counters, watchdogs, and synchronization modes.
Watchdog Operation:
- Module Watchdog: Hardware reset to recover from system hang.
- Host Watchdog: Software timer; if host fails to send “Host OK” within timeout, outputs revert to safe values.
Warranty:
1‑year limited warranty covering defects in materials and workmanship. Excludes misuse, improper installation, or unauthorized repair.
Maintenance:
Periodic inspection of wiring and connectors recommended. Firmware updates available via Inlog’s website. Modules can be reset to factory defaults using the INIT switch or software command `$AAS1`.
Support & Documentation:
- User’s Manual: EDAM‑4200 Series v1.03
- Startup Manual: EDAM‑4250 v1.0
- Technical support via www.inlog.com.tw (Download Area for utilities and manuals)
### Summary
The Inlog EDAM‑4251A is a compact, Ethernet‑enabled digital I/O and counter module engineered for industrial automation and remote data acquisition. Its combination of 10 wet‑contact inputs, 4 open‑collector outputs, and 2 high‑speed counters provides versatile control and monitoring capabilities. With dual Ethernet ports, auto‑bypass protection, and Modbus/TCP compatibility, it integrates seamlessly into modern SCADA and PLC networks. Robust isolation, flexible output modes, and programmable safety features make it suitable for demanding environments requiring reliable, deterministic I/O over Ethernet.
### 1. Product Overview
Product Name: EDAM‑4251A
Model Number: L‑4251A
Series: EDAM‑4200 Series – Digital I/O and Counter Modules
Article Number: L‑4251A
Manufacturer: Inlog Technology Co., Ltd. (www.inlog.com.tw)
The EDAM‑4251A is a high‑density, mixed digital input/output and counter module designed for industrial Ethernet data acquisition and control applications. It integrates dual 10/100 Base‑T Ethernet ports with daisy‑chain and auto‑bypass functionality, enabling flexible network topologies and high reliability. The module provides 10 isolated wet‑contact digital inputs, 4 isolated open‑collector digital outputs, and 2 high‑speed hardware counter channels, all protected by 3750 Vrms optical isolation. It supports the Modbus/TCP and UDP protocols for open connectivity with SCADA, PLC, and HMI systems.
### 2. Key Features
- Dual Ethernet Ports with Daisy‑Chain and Auto‑Bypass:
Two RJ‑45 10/100 Base‑T ports allow cascading multiple modules without external switches. The auto‑bypass circuit maintains network continuity within ~1 s even if a module loses power.
- Mixed I/O Configuration:
Combines digital inputs, digital outputs, and counter channels in one compact device, reducing system cost and wiring complexity.
- Industrial Modbus/TCP and UDP Support:
Fully compatible with standard Modbus/TCP controllers and SCADA/HMI software. UDP mode allows broadcast of I/O data streams to up to eight hosts simultaneously.
- High Isolation and Protection:
3750 Vrms optical isolation between I/O channels and logic circuits ensures robust operation in noisy industrial environments.
- Programmable Power‑On and Safe Values:
User‑defined output states at power‑up or after watchdog timeout enhance system safety.
- Dual Watchdog System:
Hardware watchdog for module self‑recovery and host watchdog for communication supervision.
- Advanced Output Modes:
Supports pulse output, auto‑off (monostable) operation, high/low delay switching, and DIO synchronization (mirroring DI to local or remote DO).
- Counter and Latch Functions:
Each DI channel can act as a 300 Hz software counter; two dedicated hardware counters support up to 4.5 kHz.
- Compact Industrial Design:
DIN‑rail or wall‑mountable aluminum enclosure with LED indicators for power, communication, and channel status.
### 3. Technical Specifications
Ethernet Interface:
- 2 × RJ‑45 ports, 10/100 Base‑T (IEEE 802.3/802.3u compliant)
- Supports Auto‑MDI/MDI‑X
- Daisy‑chain topology with auto‑bypass protection
- Communication protocols: TCP/IP, UDP, ICMP, ARP, Modbus/TCP
- Data rate: up to 100 Mbps
- Max segment length: 100 m (50 m per link when auto‑bypass active)
Digital Inputs (Wet Contact):
- Channels: 10 × DI (DI0–DI9)
- Type: Isolated single‑ended, common source/ground
- Logic level 0 (active): +5 V to +30 V DC
- Logic level 1 (inactive): ≤ +2 V DC
- Input impedance: 2 kΩ
- Optical isolation: 3750 Vrms
- Software counter: 300 Hz, 32‑bit + 1‑bit overflow
- Input latch function supported
Digital Outputs:
- Channels: 4 × DO (DO0–DO3)
- Type: Isolated open‑collector (NPN)
- Load voltage: +5 V to +30 V DC
- Max load current: 500 mA per channel
- Pulse output frequency: up to 300 Hz
- Optical isolation: 3750 Vrms
- Programmable modes: direct, pulse, delay, auto‑off, DIO sync
Hardware Counters:
- Channels: 2 × C0 = DI10, C1 = DI11
- Input type: Differential, wet contact
- Logic 1: +5 V to +30 V DC max
- Logic 0: ≤ +2 V DC
- Input impedance: 2 kΩ
- Max frequency: 4.5 kHz
- Count range: 4 294 967 285 (32‑bit + overflow)
- Optical isolation: 3750 Vrms
Power Requirements:
- Supply voltage: +10 V DC to +30 V DC (unregulated)
- Typical consumption: 3.5 W
- Protection: Over‑voltage and reverse polarity
Physical Characteristics:
- Dimensions: 130 mm × 96 mm × 26 mm
- Weight: approx. 250 g
- Mounting: DIN‑rail or wall mount
- Wiring: 14 – 28 AWG screw terminal blocks
- Enclosure: Industrial‑grade metal housing
Environmental:
- Operating temperature: –10 °C to +70 °C
- Storage temperature: –25 °C to +85 °C
- Humidity: 5 – 95 % RH, non‑condensing
- Atmosphere: No corrosive gases
### 4. Functionality
The EDAM‑4251A operates as an Ethernet‑based remote I/O node. It acquires digital input states, counts pulses, and drives digital outputs through Modbus/TCP or UDP commands. The internal microcontroller manages I/O scanning, communication, and watchdog supervision.
Typical Use Cases:
- Factory automation and process monitoring
- Machine status and alarm collection
- Remote control of actuators, solenoids, or lamps
- Counter applications for flow meters, encoders, or proximity sensors
- Integration with SCADA/HMI systems via Modbus/TCP
- Distributed I/O expansion for PLCs or embedded controllers
Compatibility:
Works with any Modbus/TCP‑compliant master, including PLCs, DCS, and SCADA software. Supported by Inlog’s TCPDAQ ActiveX and DLL APIs for custom PC applications.
### 5. Components & Accessories
Included in Package:
- EDAM‑4251A module (pre‑assembled with DIN‑rail clip)
- Panel mounting bracket
- Product CD (manuals, drivers, utilities)
- Startup manual (EDAM‑4250/4251A v1.0)
Optional Accessories:
- External 24 V DC power supply
- Ethernet cables (Cat 5e or higher)
- Additional DIN‑rail mounting hardware
Connectors:
- Dual RJ‑45 Ethernet ports
- Screw terminals for power (+Vs, GND) and I/O channels
- INIT switch on rear panel for configuration reset
### 6. Installation & Setup
Power Supply Wiring:
Connect +Vs (10–30 V DC) and GND to the screw terminals. Use at least 2 mm wire diameter. Ripple ≤ 200 mV p‑p.
Network Connection:
Use standard Cat 5/5e UTP cables. Each segment ≤ 100 m. Daisy‑chain modules via the two RJ‑45 ports. Auto‑bypass ensures network continuity if a module loses power.
Mounting:
Attach to DIN rail or wall surface. Ensure adequate ventilation and grounding.
Initialization:
Each module must have a unique IP address. Factory default:
- IP 10.0.0.1 Subnet 255.255.255.0 Gateway 10.0.0.1
- DHCP disabled, Web server disabled, Module ID 01, Password 00000000
Use the INIT switch to restore defaults or change network settings. Configuration is performed via the EDAM Ethernet I/O Utility or Modbus/TCP commands.
LED Indicators:
- Power (Yellow): ON = Power applied
- Link (Green): ON = Ethernet connected
- COM (Green blink): Data transmission activity
- Channel LEDs: Show DI/DO status
### 7. Performance & Capabilities
- Digital Input Frequency: 300 Hz (software counter)
- Hardware Counter Frequency: 4.5 kHz max
- Digital Output Pulse Rate: 300 Hz max
- Network Throughput: 100 Mbps full‑duplex
- Auto‑Bypass Recovery: ≈ 1 s after power loss
- Power Consumption: 3.5 W typical
- Response Time: < 10 ms typical for Modbus/TCP transactions
- Daisy‑Chain Distance: ≤ 100 m total (50 m per segment with bypass active)
Limitations:
- Total Ethernet segment length limited to 100 m per 100BASE‑TX standard.
- Output load per channel ≤ 500 mA; external flyback diodes recommended for inductive loads.
- Operating humidity above 30 % RH recommended to minimize static discharge.
### 8. Standards & Compliance
- Ethernet Standards: IEEE 802.3 (10 Base‑T), IEEE 802.3u (100 Base‑TX)
- Communication Protocols: Modbus/TCP, UDP/IP, ICMP, ARP
- Electrical Isolation: 3750 Vrms optical isolation between I/O and logic
- EMC/ESD Protection: Designed for industrial environments
- Safety: Over‑voltage and reverse‑polarity protection on power input
- Environmental: RoHS‑compliant materials
- Mounting & Wiring: DIN EN 50022 rail compatible
### 9. Additional Information
Software Support:
- EDAM Ethernet I/O Utility: Windows‑based configuration and monitoring tool.
- TCPDAQ ActiveX Control: For Visual Basic, Delphi, C++, and C# development.
- TCPDAQ DLL API: Comprehensive function library for Modbus/TCP and UDP communication.
- Web Server Interface: Built‑in HTTP server for remote monitoring via browser.
Firmware & Commands:
Supports ASCII and Modbus/TCP command sets for reading/writing I/O, configuring counters, watchdogs, and synchronization modes.
Watchdog Operation:
- Module Watchdog: Hardware reset to recover from system hang.
- Host Watchdog: Software timer; if host fails to send “Host OK” within timeout, outputs revert to safe values.
Warranty:
1‑year limited warranty covering defects in materials and workmanship. Excludes misuse, improper installation, or unauthorized repair.
Maintenance:
Periodic inspection of wiring and connectors recommended. Firmware updates available via Inlog’s website. Modules can be reset to factory defaults using the INIT switch or software command `$AAS1`.
Support & Documentation:
- User’s Manual: EDAM‑4200 Series v1.03
- Startup Manual: EDAM‑4250 v1.0
- Technical support via www.inlog.com.tw (Download Area for utilities and manuals)
### Summary
The Inlog EDAM‑4251A is a compact, Ethernet‑enabled digital I/O and counter module engineered for industrial automation and remote data acquisition. Its combination of 10 wet‑contact inputs, 4 open‑collector outputs, and 2 high‑speed counters provides versatile control and monitoring capabilities. With dual Ethernet ports, auto‑bypass protection, and Modbus/TCP compatibility, it integrates seamlessly into modern SCADA and PLC networks. Robust isolation, flexible output modes, and programmable safety features make it suitable for demanding environments requiring reliable, deterministic I/O over Ethernet.
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