LOOKING FOR THE RIGHT
INDUSTRIAL SOLUTION?
Discover embedded, communication and automation solutions tailored to your application.
EX9051D-M
16DI(isolated)(single ended with common source/ ground), LED, Modbus
153,00 EUR
including VAT 182.07 EUR
- 16 Isolated Digital Inputs:
Sixteen single‑ended input channels with optical isolation for reliable signal acquisition in noisy industrial environments.
- High Input Voltage Range:
Accepts logic level 1 voltages from +10 VDC to +50 VDC, and logic level 0 below +4 VDC, enabling direct connection to a variety of sensors and switches.
- Optical Isolation:
3750 Vrms isolation between channels and system logic ensures protection against ground loops and transient surges.
- RS‑485 Communication Interface:
Two‑wire half‑duplex serial interface supporting baud rates from 1200 bps to 115.2 kbps.
- Modbus RTU Protocol:
Fully compatible with the Modbus RTU standard for open connectivity with PLCs, SCADA, and HMI systems.
- LED Channel Indicators:
Sixteen front‑panel LEDs provide real‑time visual indication of input channel status.
- Wide Power Supply Range:
Operates from +10 VDC to +30 VDC, suitable for industrial 24 VDC power systems.
- Compact and Robust Design:
DIN‑rail or wall‑mountable ABS enclosure designed for harsh industrial environments.
- Extended Temperature Operation:
Rated for ‑25 °C to +75 °C operating temperature, ensuring reliability in field installations.
- Watchdog Protection:
Hardware and software watchdogs safeguard against communication loss or system hang‑ups.
- Network Scalability:
Up to 256 modules can be connected on a single RS‑485 bus (without repeater, maximum cable length 1200 m).
Sixteen single‑ended input channels with optical isolation for reliable signal acquisition in noisy industrial environments.
- High Input Voltage Range:
Accepts logic level 1 voltages from +10 VDC to +50 VDC, and logic level 0 below +4 VDC, enabling direct connection to a variety of sensors and switches.
- Optical Isolation:
3750 Vrms isolation between channels and system logic ensures protection against ground loops and transient surges.
- RS‑485 Communication Interface:
Two‑wire half‑duplex serial interface supporting baud rates from 1200 bps to 115.2 kbps.
- Modbus RTU Protocol:
Fully compatible with the Modbus RTU standard for open connectivity with PLCs, SCADA, and HMI systems.
- LED Channel Indicators:
Sixteen front‑panel LEDs provide real‑time visual indication of input channel status.
- Wide Power Supply Range:
Operates from +10 VDC to +30 VDC, suitable for industrial 24 VDC power systems.
- Compact and Robust Design:
DIN‑rail or wall‑mountable ABS enclosure designed for harsh industrial environments.
- Extended Temperature Operation:
Rated for ‑25 °C to +75 °C operating temperature, ensuring reliability in field installations.
- Watchdog Protection:
Hardware and software watchdogs safeguard against communication loss or system hang‑ups.
- Network Scalability:
Up to 256 modules can be connected on a single RS‑485 bus (without repeater, maximum cable length 1200 m).
Comprehensive Product Summary – ExpertDAQ EX9051D‑M Digital Input Module
*(Approx. 3000 tokens / ~12,000 characters)*
### 1. Product Overview
Product Name: ExpertDAQ EX9051D‑M
Model Number: EX9051D‑M
Series: EX9000 RS‑485 Digital I/O Series
Article Number: EX9051D‑M
Manufacturer: ExpertDAQ / TOPSCCC Co., Ltd. (Taiwan)
Product Type: 16‑channel isolated digital input module with LED indicators and Modbus RTU communication
The ExpertDAQ EX9051D‑M is a rugged, industrial‑grade digital input (DI) module designed for distributed data acquisition and control systems. It provides 16 optically isolated digital input channels, each supporting single‑ended operation with a common source or ground. The module communicates via the RS‑485 interface using the Modbus RTU protocol, allowing integration into a wide range of industrial automation, monitoring, and control networks.
### 2. Key Features
- 16 Isolated Digital Inputs:
Sixteen single‑ended input channels with optical isolation for reliable signal acquisition in noisy industrial environments.
- High Input Voltage Range:
Accepts logic level 1 voltages from +10 VDC to +50 VDC, and logic level 0 below +4 VDC, enabling direct connection to a variety of sensors and switches.
- Optical Isolation:
3750 Vrms isolation between channels and system logic ensures protection against ground loops and transient surges.
- RS‑485 Communication Interface:
Two‑wire half‑duplex serial interface supporting baud rates from 1200 bps to 115.2 kbps.
- Modbus RTU Protocol:
Fully compatible with the Modbus RTU standard for open connectivity with PLCs, SCADA, and HMI systems.
- LED Channel Indicators:
Sixteen front‑panel LEDs provide real‑time visual indication of input channel status.
- Wide Power Supply Range:
Operates from +10 VDC to +30 VDC, suitable for industrial 24 VDC power systems.
- Compact and Robust Design:
DIN‑rail or wall‑mountable ABS enclosure designed for harsh industrial environments.
- Extended Temperature Operation:
Rated for ‑25 °C to +75 °C operating temperature, ensuring reliability in field installations.
- Watchdog Protection:
Hardware and software watchdogs safeguard against communication loss or system hang‑ups.
- Network Scalability:
Up to 256 modules can be connected on a single RS‑485 bus (without repeater, maximum cable length 1200 m).
### 3. Technical Specifications
| Parameter | Specification |
|----------------|------------------|
| Interface | RS‑485, 2‑wire, half‑duplex |
| Communication Protocol | Modbus RTU |
| Baud Rate Options | 1200, 2400, 4800, 9600, 19.2 k, 38.4 k, 57.6 k, 115.2 k bps |
| Input Channels | 16 isolated digital inputs |
| Input Type | Isolated single‑ended with common source or ground |
| Logic Level 0 | +4 VDC maximum |
| Logic Level 1 | +10 VDC to +50 VDC |
| Input Impedance | 10 kΩ |
| Isolation Voltage | 3750 Vrms channel‑to‑system |
| LED Indicators | 16 LEDs (one per input channel) |
| Power Supply | +10 VDC to +30 VDC unregulated |
| Power Consumption | 1.2 W typical |
| Operating Temperature | ‑25 °C to +75 °C |
| Storage Temperature | ‑30 °C to +75 °C |
| Humidity | 5 % to 95 % RH, non‑condensing |
| Mounting | DIN‑rail or wall mount |
| Case Material | Industrial ABS plastic |
| Dimensions / Weight | Compact modular housing (approx. 72 × 118 × 39 mm, typical for EX9000 series) |
| Isolation Type | Optical isolation between field and logic circuits |
| Communication Distance | Up to 1200 m (without repeater) |
| Maximum Modules per Bus | 256 units |
### 4. Functionality
Operating Principle:
Each of the 16 input channels detects the presence or absence of a DC voltage signal. The module converts these signals into digital logic levels and transmits the data via RS‑485 to a host controller or SCADA system using Modbus RTU commands.
Use Cases and Applications:
- Industrial automation and process control
- Machine status monitoring
- Remote digital signal acquisition
- Building management systems (BMS)
- Energy management and substation monitoring
- Alarm and event logging systems
Compatibility:
The EX9051D‑M is compatible with any Modbus RTU master device, including PLCs, HMIs, SCADA software, and PC‑based control systems. It can be configured manually or via ExpertDAQ configuration software.
Communication:
Supports Modbus RTU function codes for reading discrete inputs and coils. The module address, baud rate, and data format are user‑configurable.
### 5. Components & Accessories
Included Components:
- EX9051D‑M module
- Plug‑in screw terminal block connectors (accepts 0.5 mm² – 2.5 mm² wires)
- Quick start guide / user manual
Optional Accessories:
- RS‑485 to USB or RS‑485 to Ethernet converters
- DIN‑rail mounting clips
- External 24 VDC power supply
- RS‑485 repeaters for extended networks
Connectors:
- Power Input: +Vs and GND screw terminals
- RS‑485 Bus: Data+ (D+), Data– (D–) terminals
- Digital Inputs: 16 input terminals with common source/ground
### 6. Installation & Setup
Power Requirements:
The module operates from any unregulated 10 – 30 VDC supply. Ripple voltage should not exceed 200 mV p‑p.
Wiring Guidelines:
- Use twisted‑pair shielded cable for RS‑485 communication.
- Maintain proper termination resistors at both ends of the bus.
- Avoid routing signal cables near high‑voltage or high‑current lines.
- Use continuous wire runs; avoid splices where possible.
Mounting Options:
- DIN‑rail mounting (standard 35 mm rail)
- Wall mounting via captive hardware
Configuration:
Default communication parameters:
- Protocol: Modbus RTU
- Module Address: 01 (hex)
- Baud Rate: 9600 bps
- Data Format: 8 N 1 (no parity)
Configuration can be changed via ASCII commands in INIT* mode or using the ExpertDAQ configuration utility.
INIT* Mode Operation:
To reset or reconfigure the module:
1. Power off the module.
2. Slide the INIT* switch to the “Init” position (or short INIT* to GND).
3. Power on the module.
4. Send ASCII command `$002` at 9600 bps to read or modify EEPROM settings.
5. After configuration, return the switch to “Normal” and power cycle the module.
### 7. Performance & Capabilities
Speed and Capacity:
- Supports up to 115.2 kbps communication speed.
- Handles 16 simultaneous digital input channels.
- Up to 256 modules can be networked on a single RS‑485 line.
Efficiency and Reliability:
- Low power consumption (1.2 W typical).
- High noise immunity due to optical isolation.
- LED indicators provide immediate diagnostic feedback.
Limitations:
- Digital input only (no output channels).
- Requires external 10–50 VDC input signals for logic “1”.
- RS‑485 network requires proper termination and biasing for long distances.
### 8. Standards & Compliance
Communication Standards:
- RS‑485 (EIA/TIA‑485)
- Modbus RTU protocol compliant
Electrical & Safety:
- 3750 Vrms isolation protection
- Over‑voltage and reverse‑polarity protection on power input
Environmental Compliance:
- Designed for industrial temperature range (‑25 °C – +75 °C)
- Humidity tolerance up to 95 % non‑condensing
- Suitable for environments without corrosive gases
Quality & Manufacturing:
- Manufactured under ISO‑certified quality systems
- Conforms to CE and FCC industrial EMC standards (typical for ExpertDAQ modules)
### 9. Additional Information
Watchdog Functions:
- Hardware Watchdog: Monitors internal microcontroller operation to prevent system hang‑ups.
- Software Watchdog: Monitors communication with the host; if timeout occurs, module resets to safe state.
Maintenance:
- Periodically inspect wiring and terminal connections.
- Ensure RS‑485 bus termination resistors remain intact.
- Clean module exterior with dry cloth; avoid solvents.
Firmware & Updates:
Firmware can be updated via RS‑485 interface using ExpertDAQ tools if required.
Warranty & Support:
- Standard manufacturer warranty (typically 2 years).
- Technical support and documentation available at [www.topsccc.com.tw](http://www.topsccc.com.tw).
- Free configuration utility and manuals downloadable from the manufacturer’s website.
Service Life & Reliability:
Designed for continuous 24/7 operation in industrial environments with MTBF exceeding 100,000 hours.
### Summary Table
| Feature Category | Details |
|-----------------------|-------------|
| Model | EX9051D‑M |
| Type | 16‑channel isolated digital input module |
| Interface | RS‑485, Modbus RTU |
| Input Voltage Range | Logic 0 < +4 VDC, Logic 1 = +10 – +50 VDC |
| Input Impedance | 10 kΩ |
| Isolation | 3750 Vrms optical |
| Indicators | 16 × LEDs (channel status) |
| Power Supply | +10 – +30 VDC |
| Power Consumption | 1.2 W |
| Operating Temp. | ‑25 °C – +75 °C |
| Communication Speed | Up to 115.2 kbps |
| Mounting | DIN‑rail / wall mount |
| Protocol Support | Modbus RTU |
| Max. Bus Length | 1200 m (without repeater) |
| Max. Modules per Bus | 256 |
| Protection | Over‑voltage, reverse polarity, optical isolation |
| Applications | Industrial automation, remote monitoring, digital signal acquisition |
### 10. Typical Applications
- Factory Automation: Monitoring limit switches, sensors, and machine status signals.
- Building Automation: Collecting digital signals from HVAC, lighting, or security systems.
- Energy Systems: Monitoring breaker status, alarms, and contactor feedback.
- Transportation Infrastructure: Remote I/O for traffic control or railway signaling.
- Environmental Monitoring: Integration with Modbus‑based data loggers and controllers.
### 11. Operational Example
Modbus RTU Command Example:
To read the digital input status of all 16 channels:
- Function Code: 0x02 (Read Discrete Inputs)
- Starting Address: 0x0000
- Quantity: 16
The module returns a 2‑byte data field representing the ON/OFF state of each input channel.
ASCII Command Example (INIT* mode):
`$01M` → Returns module name “9051M”
`$01F` → Returns firmware version
`$01P1` → Sets protocol to Modbus RTU
### 12. Reliability & Safety Considerations
- Ensure proper grounding of the RS‑485 network.
- Avoid exceeding input voltage limits (max. 50 VDC).
- Use surge protection devices in high‑transient environments.
- Maintain adequate spacing between power and signal wiring.
### 13. Summary of Advantages
- High channel density (16 inputs per module)
- Wide input voltage compatibility
- Robust isolation and industrial‑grade protection
- Simple Modbus RTU integration
- Compact, low‑power design
- Visual diagnostics via LEDs
- Flexible installation and configuration options
### 14. Ordering Information
| Model | Description |
|------------|----------------|
| EX9051D‑M | 16‑channel isolated digital input module, RS‑485, Modbus RTU, LED indicators |
| EX9055D‑M | 8 DI + 8 DO combination module (for reference) |
### 15. Conclusion
The ExpertDAQ EX9051D‑M is a reliable, high‑performance digital input module engineered for industrial automation and remote I/O applications. Its 16 optically isolated channels, wide input voltage range, and Modbus RTU communication make it ideal for distributed control systems requiring robust signal acquisition over long RS‑485 networks. With LED diagnostics, wide temperature tolerance, and comprehensive protection features, the EX9051D‑M delivers dependable operation in demanding industrial environments while maintaining ease of integration and configuration.
Manufacturer Website: [www.topsccc.com.tw](http://www.topsccc.com.tw)
Product Category: Industrial Data Acquisition / RS‑485 Digital I/O Modules
Model Reference: EX9051D‑M – 16DI (isolated, single‑ended with common source/ground), LED, Modbus RTU
*(Approx. 3000 tokens / ~12,000 characters)*
### 1. Product Overview
Product Name: ExpertDAQ EX9051D‑M
Model Number: EX9051D‑M
Series: EX9000 RS‑485 Digital I/O Series
Article Number: EX9051D‑M
Manufacturer: ExpertDAQ / TOPSCCC Co., Ltd. (Taiwan)
Product Type: 16‑channel isolated digital input module with LED indicators and Modbus RTU communication
The ExpertDAQ EX9051D‑M is a rugged, industrial‑grade digital input (DI) module designed for distributed data acquisition and control systems. It provides 16 optically isolated digital input channels, each supporting single‑ended operation with a common source or ground. The module communicates via the RS‑485 interface using the Modbus RTU protocol, allowing integration into a wide range of industrial automation, monitoring, and control networks.
### 2. Key Features
- 16 Isolated Digital Inputs:
Sixteen single‑ended input channels with optical isolation for reliable signal acquisition in noisy industrial environments.
- High Input Voltage Range:
Accepts logic level 1 voltages from +10 VDC to +50 VDC, and logic level 0 below +4 VDC, enabling direct connection to a variety of sensors and switches.
- Optical Isolation:
3750 Vrms isolation between channels and system logic ensures protection against ground loops and transient surges.
- RS‑485 Communication Interface:
Two‑wire half‑duplex serial interface supporting baud rates from 1200 bps to 115.2 kbps.
- Modbus RTU Protocol:
Fully compatible with the Modbus RTU standard for open connectivity with PLCs, SCADA, and HMI systems.
- LED Channel Indicators:
Sixteen front‑panel LEDs provide real‑time visual indication of input channel status.
- Wide Power Supply Range:
Operates from +10 VDC to +30 VDC, suitable for industrial 24 VDC power systems.
- Compact and Robust Design:
DIN‑rail or wall‑mountable ABS enclosure designed for harsh industrial environments.
- Extended Temperature Operation:
Rated for ‑25 °C to +75 °C operating temperature, ensuring reliability in field installations.
- Watchdog Protection:
Hardware and software watchdogs safeguard against communication loss or system hang‑ups.
- Network Scalability:
Up to 256 modules can be connected on a single RS‑485 bus (without repeater, maximum cable length 1200 m).
### 3. Technical Specifications
| Parameter | Specification |
|----------------|------------------|
| Interface | RS‑485, 2‑wire, half‑duplex |
| Communication Protocol | Modbus RTU |
| Baud Rate Options | 1200, 2400, 4800, 9600, 19.2 k, 38.4 k, 57.6 k, 115.2 k bps |
| Input Channels | 16 isolated digital inputs |
| Input Type | Isolated single‑ended with common source or ground |
| Logic Level 0 | +4 VDC maximum |
| Logic Level 1 | +10 VDC to +50 VDC |
| Input Impedance | 10 kΩ |
| Isolation Voltage | 3750 Vrms channel‑to‑system |
| LED Indicators | 16 LEDs (one per input channel) |
| Power Supply | +10 VDC to +30 VDC unregulated |
| Power Consumption | 1.2 W typical |
| Operating Temperature | ‑25 °C to +75 °C |
| Storage Temperature | ‑30 °C to +75 °C |
| Humidity | 5 % to 95 % RH, non‑condensing |
| Mounting | DIN‑rail or wall mount |
| Case Material | Industrial ABS plastic |
| Dimensions / Weight | Compact modular housing (approx. 72 × 118 × 39 mm, typical for EX9000 series) |
| Isolation Type | Optical isolation between field and logic circuits |
| Communication Distance | Up to 1200 m (without repeater) |
| Maximum Modules per Bus | 256 units |
### 4. Functionality
Operating Principle:
Each of the 16 input channels detects the presence or absence of a DC voltage signal. The module converts these signals into digital logic levels and transmits the data via RS‑485 to a host controller or SCADA system using Modbus RTU commands.
Use Cases and Applications:
- Industrial automation and process control
- Machine status monitoring
- Remote digital signal acquisition
- Building management systems (BMS)
- Energy management and substation monitoring
- Alarm and event logging systems
Compatibility:
The EX9051D‑M is compatible with any Modbus RTU master device, including PLCs, HMIs, SCADA software, and PC‑based control systems. It can be configured manually or via ExpertDAQ configuration software.
Communication:
Supports Modbus RTU function codes for reading discrete inputs and coils. The module address, baud rate, and data format are user‑configurable.
### 5. Components & Accessories
Included Components:
- EX9051D‑M module
- Plug‑in screw terminal block connectors (accepts 0.5 mm² – 2.5 mm² wires)
- Quick start guide / user manual
Optional Accessories:
- RS‑485 to USB or RS‑485 to Ethernet converters
- DIN‑rail mounting clips
- External 24 VDC power supply
- RS‑485 repeaters for extended networks
Connectors:
- Power Input: +Vs and GND screw terminals
- RS‑485 Bus: Data+ (D+), Data– (D–) terminals
- Digital Inputs: 16 input terminals with common source/ground
### 6. Installation & Setup
Power Requirements:
The module operates from any unregulated 10 – 30 VDC supply. Ripple voltage should not exceed 200 mV p‑p.
Wiring Guidelines:
- Use twisted‑pair shielded cable for RS‑485 communication.
- Maintain proper termination resistors at both ends of the bus.
- Avoid routing signal cables near high‑voltage or high‑current lines.
- Use continuous wire runs; avoid splices where possible.
Mounting Options:
- DIN‑rail mounting (standard 35 mm rail)
- Wall mounting via captive hardware
Configuration:
Default communication parameters:
- Protocol: Modbus RTU
- Module Address: 01 (hex)
- Baud Rate: 9600 bps
- Data Format: 8 N 1 (no parity)
Configuration can be changed via ASCII commands in INIT* mode or using the ExpertDAQ configuration utility.
INIT* Mode Operation:
To reset or reconfigure the module:
1. Power off the module.
2. Slide the INIT* switch to the “Init” position (or short INIT* to GND).
3. Power on the module.
4. Send ASCII command `$002` at 9600 bps to read or modify EEPROM settings.
5. After configuration, return the switch to “Normal” and power cycle the module.
### 7. Performance & Capabilities
Speed and Capacity:
- Supports up to 115.2 kbps communication speed.
- Handles 16 simultaneous digital input channels.
- Up to 256 modules can be networked on a single RS‑485 line.
Efficiency and Reliability:
- Low power consumption (1.2 W typical).
- High noise immunity due to optical isolation.
- LED indicators provide immediate diagnostic feedback.
Limitations:
- Digital input only (no output channels).
- Requires external 10–50 VDC input signals for logic “1”.
- RS‑485 network requires proper termination and biasing for long distances.
### 8. Standards & Compliance
Communication Standards:
- RS‑485 (EIA/TIA‑485)
- Modbus RTU protocol compliant
Electrical & Safety:
- 3750 Vrms isolation protection
- Over‑voltage and reverse‑polarity protection on power input
Environmental Compliance:
- Designed for industrial temperature range (‑25 °C – +75 °C)
- Humidity tolerance up to 95 % non‑condensing
- Suitable for environments without corrosive gases
Quality & Manufacturing:
- Manufactured under ISO‑certified quality systems
- Conforms to CE and FCC industrial EMC standards (typical for ExpertDAQ modules)
### 9. Additional Information
Watchdog Functions:
- Hardware Watchdog: Monitors internal microcontroller operation to prevent system hang‑ups.
- Software Watchdog: Monitors communication with the host; if timeout occurs, module resets to safe state.
Maintenance:
- Periodically inspect wiring and terminal connections.
- Ensure RS‑485 bus termination resistors remain intact.
- Clean module exterior with dry cloth; avoid solvents.
Firmware & Updates:
Firmware can be updated via RS‑485 interface using ExpertDAQ tools if required.
Warranty & Support:
- Standard manufacturer warranty (typically 2 years).
- Technical support and documentation available at [www.topsccc.com.tw](http://www.topsccc.com.tw).
- Free configuration utility and manuals downloadable from the manufacturer’s website.
Service Life & Reliability:
Designed for continuous 24/7 operation in industrial environments with MTBF exceeding 100,000 hours.
### Summary Table
| Feature Category | Details |
|-----------------------|-------------|
| Model | EX9051D‑M |
| Type | 16‑channel isolated digital input module |
| Interface | RS‑485, Modbus RTU |
| Input Voltage Range | Logic 0 < +4 VDC, Logic 1 = +10 – +50 VDC |
| Input Impedance | 10 kΩ |
| Isolation | 3750 Vrms optical |
| Indicators | 16 × LEDs (channel status) |
| Power Supply | +10 – +30 VDC |
| Power Consumption | 1.2 W |
| Operating Temp. | ‑25 °C – +75 °C |
| Communication Speed | Up to 115.2 kbps |
| Mounting | DIN‑rail / wall mount |
| Protocol Support | Modbus RTU |
| Max. Bus Length | 1200 m (without repeater) |
| Max. Modules per Bus | 256 |
| Protection | Over‑voltage, reverse polarity, optical isolation |
| Applications | Industrial automation, remote monitoring, digital signal acquisition |
### 10. Typical Applications
- Factory Automation: Monitoring limit switches, sensors, and machine status signals.
- Building Automation: Collecting digital signals from HVAC, lighting, or security systems.
- Energy Systems: Monitoring breaker status, alarms, and contactor feedback.
- Transportation Infrastructure: Remote I/O for traffic control or railway signaling.
- Environmental Monitoring: Integration with Modbus‑based data loggers and controllers.
### 11. Operational Example
Modbus RTU Command Example:
To read the digital input status of all 16 channels:
- Function Code: 0x02 (Read Discrete Inputs)
- Starting Address: 0x0000
- Quantity: 16
The module returns a 2‑byte data field representing the ON/OFF state of each input channel.
ASCII Command Example (INIT* mode):
`$01M` → Returns module name “9051M”
`$01F` → Returns firmware version
`$01P1` → Sets protocol to Modbus RTU
### 12. Reliability & Safety Considerations
- Ensure proper grounding of the RS‑485 network.
- Avoid exceeding input voltage limits (max. 50 VDC).
- Use surge protection devices in high‑transient environments.
- Maintain adequate spacing between power and signal wiring.
### 13. Summary of Advantages
- High channel density (16 inputs per module)
- Wide input voltage compatibility
- Robust isolation and industrial‑grade protection
- Simple Modbus RTU integration
- Compact, low‑power design
- Visual diagnostics via LEDs
- Flexible installation and configuration options
### 14. Ordering Information
| Model | Description |
|------------|----------------|
| EX9051D‑M | 16‑channel isolated digital input module, RS‑485, Modbus RTU, LED indicators |
| EX9055D‑M | 8 DI + 8 DO combination module (for reference) |
### 15. Conclusion
The ExpertDAQ EX9051D‑M is a reliable, high‑performance digital input module engineered for industrial automation and remote I/O applications. Its 16 optically isolated channels, wide input voltage range, and Modbus RTU communication make it ideal for distributed control systems requiring robust signal acquisition over long RS‑485 networks. With LED diagnostics, wide temperature tolerance, and comprehensive protection features, the EX9051D‑M delivers dependable operation in demanding industrial environments while maintaining ease of integration and configuration.
Manufacturer Website: [www.topsccc.com.tw](http://www.topsccc.com.tw)
Product Category: Industrial Data Acquisition / RS‑485 Digital I/O Modules
Model Reference: EX9051D‑M – 16DI (isolated, single‑ended with common source/ground), LED, Modbus RTU
(20170926)Final.webp)
No accessories available.
