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EX9044D
4*DI (isolated), 8*DO (isolated,open collector),LED
112,00 EUR
including VAT 133.28 EUR
- Digital I/O Configuration:
4 isolated digital input channels and 8 isolated open-collector digital output channels.
- Isolation Protection:
3750 Vrms photo-isolation between channels and logic circuitry, ensuring high noise immunity and protection against ground loops.
- Communication Interface:
RS-485, 2-wire half-duplex communication supporting up to 256 modules per network segment.
- Protocol Support:
- EX9044D: Proprietary ASCII command set.
- EX9044D-M: Modbus RTU protocol support for standard industrial communication.
- Output Characteristics:
Open-collector NPN transistor outputs capable of sinking up to 375 mA per channel at voltages up to 30 VDC.
- Input Characteristics:
Optically isolated inputs with 3 kΩ impedance, supporting logic levels from 4 V to 30 V for high and below 1 V for low.
- LED Indicators:
12 status LEDs (one per channel) for real-time monitoring of input and output states.
- Power Supply:
Operates from a wide 10–30 VDC supply range with low power consumption (1.5–1.7 W typical).
- Watchdog Protection:
Dual watchdog system (hardware and software) ensures continuous operation and safe-state fallback in case of communication or system failure.
- Extended Temperature Range:
Designed for industrial environments with operating temperatures from -25°C to +75°C and storage temperatures from -30°C to +75°C.
- Configuration Flexibility:
Supports manual configuration via DIP switches or software commands. EEPROM stores configuration parameters such as address, baud rate, and data format.
- Network Scalability:
Up to 256 modules can be daisy-chained on a single RS-485 bus, with a maximum cable length of 1200 meters without repeaters.
4 isolated digital input channels and 8 isolated open-collector digital output channels.
- Isolation Protection:
3750 Vrms photo-isolation between channels and logic circuitry, ensuring high noise immunity and protection against ground loops.
- Communication Interface:
RS-485, 2-wire half-duplex communication supporting up to 256 modules per network segment.
- Protocol Support:
- EX9044D: Proprietary ASCII command set.
- EX9044D-M: Modbus RTU protocol support for standard industrial communication.
- Output Characteristics:
Open-collector NPN transistor outputs capable of sinking up to 375 mA per channel at voltages up to 30 VDC.
- Input Characteristics:
Optically isolated inputs with 3 kΩ impedance, supporting logic levels from 4 V to 30 V for high and below 1 V for low.
- LED Indicators:
12 status LEDs (one per channel) for real-time monitoring of input and output states.
- Power Supply:
Operates from a wide 10–30 VDC supply range with low power consumption (1.5–1.7 W typical).
- Watchdog Protection:
Dual watchdog system (hardware and software) ensures continuous operation and safe-state fallback in case of communication or system failure.
- Extended Temperature Range:
Designed for industrial environments with operating temperatures from -25°C to +75°C and storage temperatures from -30°C to +75°C.
- Configuration Flexibility:
Supports manual configuration via DIP switches or software commands. EEPROM stores configuration parameters such as address, baud rate, and data format.
- Network Scalability:
Up to 256 modules can be daisy-chained on a single RS-485 bus, with a maximum cable length of 1200 meters without repeaters.
Comprehensive Product Summary – ExpertDAQ EX9044D Digital I/O Module
### 1. Product Overview
Product Name: ExpertDAQ EX9044D
Model: EX9044D / EX9044D-M
Series: EX9000 Series Digital I/O Modules
Article Number: EX9044D
Manufacturer: ExpertDAQ (Expert Data Acquisition Systems)
The ExpertDAQ EX9044D is a robust, industrial-grade digital input/output (DIO) module designed for distributed control and monitoring applications over RS-485 networks. It provides a combination of isolated digital inputs and open-collector digital outputs, offering reliable signal interfacing for automation, process control, and remote I/O expansion. The EX9044D is available in two variants: the standard EX9044D and the EX9044D-M, which adds Modbus RTU protocol support for enhanced interoperability with PLCs, SCADA systems, and industrial controllers.
### 2. Key Features
- Digital I/O Configuration:
4 isolated digital input channels and 8 isolated open-collector digital output channels.
- Isolation Protection:
3750 Vrms photo-isolation between channels and logic circuitry, ensuring high noise immunity and protection against ground loops.
- Communication Interface:
RS-485, 2-wire half-duplex communication supporting up to 256 modules per network segment.
- Protocol Support:
- EX9044D: Proprietary ASCII command set.
- EX9044D-M: Modbus RTU protocol support for standard industrial communication.
- Output Characteristics:
Open-collector NPN transistor outputs capable of sinking up to 375 mA per channel at voltages up to 30 VDC.
- Input Characteristics:
Optically isolated inputs with 3 kΩ impedance, supporting logic levels from 4 V to 30 V for high and below 1 V for low.
- LED Indicators:
12 status LEDs (one per channel) for real-time monitoring of input and output states.
- Power Supply:
Operates from a wide 10–30 VDC supply range with low power consumption (1.5–1.7 W typical).
- Watchdog Protection:
Dual watchdog system (hardware and software) ensures continuous operation and safe-state fallback in case of communication or system failure.
- Extended Temperature Range:
Designed for industrial environments with operating temperatures from -25°C to +75°C and storage temperatures from -30°C to +75°C.
- Configuration Flexibility:
Supports manual configuration via DIP switches or software commands. EEPROM stores configuration parameters such as address, baud rate, and data format.
- Network Scalability:
Up to 256 modules can be daisy-chained on a single RS-485 bus, with a maximum cable length of 1200 meters without repeaters.
### 3. Technical Specifications
| Parameter | Specification |
|----------------|-------------------|
| Digital Inputs | 4 isolated channels, common source |
| Input Impedance | 3 kΩ |
| Logic Level 0 | ≤ +1 VDC |
| Logic Level 1 | +4 VDC to +30 VDC |
| Digital Outputs | 8 isolated open-collector NPN transistor channels, common power |
| Max Load Voltage | +30 VDC |
| Max Sink Current | 375 mA per channel |
| Isolation Voltage | 3750 Vrms (photo isolation), 3000 VDC channel-to-system |
| Interface | RS-485, 2-wire half-duplex |
| Baud Rates Supported | 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200 bps |
| Protocol | ASCII (EX9044D), Modbus RTU (EX9044D-M) |
| Power Supply | +10 VDC to +30 VDC |
| Power Consumption | 1.5 W (typical), 1.7 W (max) |
| Operating Temperature | -25°C to +75°C |
| Storage Temperature | -30°C to +75°C |
| LED Indicators | 12 LEDs (4 for DI, 8 for DO) |
| Isolation Type | Optical isolation between I/O and logic |
| Mounting | DIN-rail or panel mount |
| Communication Distance | Up to 1200 m (without repeater) |
| Max Modules per Network | 256 |
| Housing Material | Industrial-grade ABS enclosure |
| Protection | Dual watchdog (hardware + software) |
### 4. Functionality
The EX9044D functions as a distributed digital I/O node in an RS-485 network. It converts digital input signals from sensors, switches, or logic devices into serial data for transmission to a host controller or SCADA system. Conversely, it receives digital output commands to control actuators, relays, or indicators.
Operation Modes:
- Normal Mode: Standard operation with user-defined address and baud rate.
- INIT* Mode: Configuration recovery mode for resetting communication parameters.
- Safe Mode: Activated by watchdog timeout; outputs revert to predefined safe values.
Use Cases:
- Industrial automation and process control
- Remote monitoring and data acquisition
- Building management systems
- Machine control and safety interlocks
- Energy management and environmental monitoring
Compatibility:
- Compatible with ExpertDAQ software tools and Modbus RTU masters.
- Integrates with PLCs, HMIs, and SCADA systems supporting Modbus RTU or ASCII protocols.
### 5. Components & Accessories
Included Components:
- EX9044D module
- Quick start guide
- Configuration software (for PC setup)
- Terminal block connectors for I/O and power
Optional Accessories:
- RS-485 to USB converter (for PC connection)
- RS-485 repeaters for extended distance
- DIN-rail mounting kit
- Power supply (10–30 VDC regulated)
- Communication cables and terminal adapters
Connectors:
- Removable screw terminal blocks for inputs, outputs, and power
- RS-485 communication terminals (D+, D−, GND)
- INIT* pin or switch for configuration reset
### 6. Installation & Setup
Requirements:
- DC power supply (10–30 VDC)
- RS-485 network connection
- Host controller or PC with serial/USB interface
Mounting Options:
- DIN-rail mounting (standard)
- Panel mounting (optional)
Configuration Steps:
1. Power Connection: Connect +V and GND to a regulated DC supply.
2. RS-485 Wiring: Connect D+ and D− lines to the network bus.
3. Address & Baud Rate: Set via software commands or INIT* mode.
4. INIT* Mode Activation:
- Power off the module.
- Connect INIT* pin to GND or slide INIT* switch to “Init” position.
- Power on to enter configuration mode.
5. Verification: Use LED indicators to confirm communication and I/O status.
Default Settings:
- Module Address: 01
- DIO Type: 40
- Baud Rate: 9600 bps
- Protocol: ASCII (EX9044D) / Modbus RTU (EX9044D-M)
### 7. Performance & Capabilities
Speed & Communication:
- Supports baud rates up to 115.2 kbps.
- Reliable communication over 1200 m RS-485 bus without repeaters.
- Supports synchronized sampling and multi-channel output commands.
Capacity:
- 4 digital inputs and 8 digital outputs per module.
- Up to 256 modules per network, enabling large-scale distributed I/O systems.
Efficiency:
- Low power consumption (1.5–1.7 W).
- High isolation ensures minimal signal interference.
Reliability Features:
- Dual Watchdog System:
- *Module Watchdog:* Hardware circuit monitors internal operation and resets on fault.
- *Host Watchdog:* Software timer monitors host communication; triggers safe-state on timeout.
- Safe and Power-On Values:
User-configurable output states for startup and fault conditions.
- EEPROM Configuration Storage:
Retains settings for address, baud rate, and data format after power loss.
Limitations:
- Open-collector outputs require external pull-up resistors or load connections.
- No analog input/output capability.
- Modbus RTU support limited to EX9044D-M variant.
### 8. Standards & Compliance
Electrical & Safety:
- Isolation voltage: 3750 Vrms (photo isolation)
- Designed for industrial EMC environments
- Complies with RS-485 communication standards (TIA/EIA-485-A)
Protocol Standards:
- Modbus RTU (EX9044D-M)
- ASCII command protocol (EX9044D)
Environmental Compliance:
- RoHS-compliant materials
- Wide temperature operation for industrial use
Quality & Reliability:
- Built to industrial-grade standards for continuous operation
- Tested for vibration, temperature, and electrical noise immunity
### 9. Additional Information
Warranty:
- Standard manufacturer warranty (typically 2 years; confirm with supplier)
Support:
- Technical documentation and user manuals available from ExpertDAQ
- Firmware updates and configuration utilities provided via manufacturer website
- Email and online technical support for configuration and troubleshooting
Maintenance:
- No moving parts; minimal maintenance required
- Periodic inspection of terminal connections recommended
- Firmware can be updated via RS-485 interface
Firmware & Software Updates:
- Firmware version readable via command `$AAF`
- Module name and configuration can be updated using ASCII or Modbus commands
- EEPROM stores all user-defined parameters for persistent configuration
Safety & Reliability Enhancements:
- Power-on and safe-state output values prevent unintended activation
- Host watchdog timeout ensures controlled shutdown in communication loss
- LED indicators provide immediate visual feedback for diagnostics
### Summary
The ExpertDAQ EX9044D is a versatile, high-reliability digital I/O module engineered for industrial automation and remote data acquisition. With 4 isolated digital inputs and 8 open-collector digital outputs, it provides flexible interfacing for sensors, switches, and actuators. Its RS-485 communication capability allows integration into large distributed control systems, supporting up to 256 modules per network. The EX9044D-M variant adds Modbus RTU compatibility, making it ideal for integration with standard industrial controllers and SCADA systems.
Key advantages include 3750 Vrms isolation, dual watchdog protection, wide operating temperature range, and configurable safe and power-on states. The module’s low power consumption, robust design, and comprehensive command set make it suitable for demanding industrial environments requiring reliable, deterministic digital control.
Whether used for machine automation, process monitoring, or building management, the EX9044D delivers dependable performance, flexible configuration, and long-term operational stability in a compact, easy-to-install form factor.
### 1. Product Overview
Product Name: ExpertDAQ EX9044D
Model: EX9044D / EX9044D-M
Series: EX9000 Series Digital I/O Modules
Article Number: EX9044D
Manufacturer: ExpertDAQ (Expert Data Acquisition Systems)
The ExpertDAQ EX9044D is a robust, industrial-grade digital input/output (DIO) module designed for distributed control and monitoring applications over RS-485 networks. It provides a combination of isolated digital inputs and open-collector digital outputs, offering reliable signal interfacing for automation, process control, and remote I/O expansion. The EX9044D is available in two variants: the standard EX9044D and the EX9044D-M, which adds Modbus RTU protocol support for enhanced interoperability with PLCs, SCADA systems, and industrial controllers.
### 2. Key Features
- Digital I/O Configuration:
4 isolated digital input channels and 8 isolated open-collector digital output channels.
- Isolation Protection:
3750 Vrms photo-isolation between channels and logic circuitry, ensuring high noise immunity and protection against ground loops.
- Communication Interface:
RS-485, 2-wire half-duplex communication supporting up to 256 modules per network segment.
- Protocol Support:
- EX9044D: Proprietary ASCII command set.
- EX9044D-M: Modbus RTU protocol support for standard industrial communication.
- Output Characteristics:
Open-collector NPN transistor outputs capable of sinking up to 375 mA per channel at voltages up to 30 VDC.
- Input Characteristics:
Optically isolated inputs with 3 kΩ impedance, supporting logic levels from 4 V to 30 V for high and below 1 V for low.
- LED Indicators:
12 status LEDs (one per channel) for real-time monitoring of input and output states.
- Power Supply:
Operates from a wide 10–30 VDC supply range with low power consumption (1.5–1.7 W typical).
- Watchdog Protection:
Dual watchdog system (hardware and software) ensures continuous operation and safe-state fallback in case of communication or system failure.
- Extended Temperature Range:
Designed for industrial environments with operating temperatures from -25°C to +75°C and storage temperatures from -30°C to +75°C.
- Configuration Flexibility:
Supports manual configuration via DIP switches or software commands. EEPROM stores configuration parameters such as address, baud rate, and data format.
- Network Scalability:
Up to 256 modules can be daisy-chained on a single RS-485 bus, with a maximum cable length of 1200 meters without repeaters.
### 3. Technical Specifications
| Parameter | Specification |
|----------------|-------------------|
| Digital Inputs | 4 isolated channels, common source |
| Input Impedance | 3 kΩ |
| Logic Level 0 | ≤ +1 VDC |
| Logic Level 1 | +4 VDC to +30 VDC |
| Digital Outputs | 8 isolated open-collector NPN transistor channels, common power |
| Max Load Voltage | +30 VDC |
| Max Sink Current | 375 mA per channel |
| Isolation Voltage | 3750 Vrms (photo isolation), 3000 VDC channel-to-system |
| Interface | RS-485, 2-wire half-duplex |
| Baud Rates Supported | 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200 bps |
| Protocol | ASCII (EX9044D), Modbus RTU (EX9044D-M) |
| Power Supply | +10 VDC to +30 VDC |
| Power Consumption | 1.5 W (typical), 1.7 W (max) |
| Operating Temperature | -25°C to +75°C |
| Storage Temperature | -30°C to +75°C |
| LED Indicators | 12 LEDs (4 for DI, 8 for DO) |
| Isolation Type | Optical isolation between I/O and logic |
| Mounting | DIN-rail or panel mount |
| Communication Distance | Up to 1200 m (without repeater) |
| Max Modules per Network | 256 |
| Housing Material | Industrial-grade ABS enclosure |
| Protection | Dual watchdog (hardware + software) |
### 4. Functionality
The EX9044D functions as a distributed digital I/O node in an RS-485 network. It converts digital input signals from sensors, switches, or logic devices into serial data for transmission to a host controller or SCADA system. Conversely, it receives digital output commands to control actuators, relays, or indicators.
Operation Modes:
- Normal Mode: Standard operation with user-defined address and baud rate.
- INIT* Mode: Configuration recovery mode for resetting communication parameters.
- Safe Mode: Activated by watchdog timeout; outputs revert to predefined safe values.
Use Cases:
- Industrial automation and process control
- Remote monitoring and data acquisition
- Building management systems
- Machine control and safety interlocks
- Energy management and environmental monitoring
Compatibility:
- Compatible with ExpertDAQ software tools and Modbus RTU masters.
- Integrates with PLCs, HMIs, and SCADA systems supporting Modbus RTU or ASCII protocols.
### 5. Components & Accessories
Included Components:
- EX9044D module
- Quick start guide
- Configuration software (for PC setup)
- Terminal block connectors for I/O and power
Optional Accessories:
- RS-485 to USB converter (for PC connection)
- RS-485 repeaters for extended distance
- DIN-rail mounting kit
- Power supply (10–30 VDC regulated)
- Communication cables and terminal adapters
Connectors:
- Removable screw terminal blocks for inputs, outputs, and power
- RS-485 communication terminals (D+, D−, GND)
- INIT* pin or switch for configuration reset
### 6. Installation & Setup
Requirements:
- DC power supply (10–30 VDC)
- RS-485 network connection
- Host controller or PC with serial/USB interface
Mounting Options:
- DIN-rail mounting (standard)
- Panel mounting (optional)
Configuration Steps:
1. Power Connection: Connect +V and GND to a regulated DC supply.
2. RS-485 Wiring: Connect D+ and D− lines to the network bus.
3. Address & Baud Rate: Set via software commands or INIT* mode.
4. INIT* Mode Activation:
- Power off the module.
- Connect INIT* pin to GND or slide INIT* switch to “Init” position.
- Power on to enter configuration mode.
5. Verification: Use LED indicators to confirm communication and I/O status.
Default Settings:
- Module Address: 01
- DIO Type: 40
- Baud Rate: 9600 bps
- Protocol: ASCII (EX9044D) / Modbus RTU (EX9044D-M)
### 7. Performance & Capabilities
Speed & Communication:
- Supports baud rates up to 115.2 kbps.
- Reliable communication over 1200 m RS-485 bus without repeaters.
- Supports synchronized sampling and multi-channel output commands.
Capacity:
- 4 digital inputs and 8 digital outputs per module.
- Up to 256 modules per network, enabling large-scale distributed I/O systems.
Efficiency:
- Low power consumption (1.5–1.7 W).
- High isolation ensures minimal signal interference.
Reliability Features:
- Dual Watchdog System:
- *Module Watchdog:* Hardware circuit monitors internal operation and resets on fault.
- *Host Watchdog:* Software timer monitors host communication; triggers safe-state on timeout.
- Safe and Power-On Values:
User-configurable output states for startup and fault conditions.
- EEPROM Configuration Storage:
Retains settings for address, baud rate, and data format after power loss.
Limitations:
- Open-collector outputs require external pull-up resistors or load connections.
- No analog input/output capability.
- Modbus RTU support limited to EX9044D-M variant.
### 8. Standards & Compliance
Electrical & Safety:
- Isolation voltage: 3750 Vrms (photo isolation)
- Designed for industrial EMC environments
- Complies with RS-485 communication standards (TIA/EIA-485-A)
Protocol Standards:
- Modbus RTU (EX9044D-M)
- ASCII command protocol (EX9044D)
Environmental Compliance:
- RoHS-compliant materials
- Wide temperature operation for industrial use
Quality & Reliability:
- Built to industrial-grade standards for continuous operation
- Tested for vibration, temperature, and electrical noise immunity
### 9. Additional Information
Warranty:
- Standard manufacturer warranty (typically 2 years; confirm with supplier)
Support:
- Technical documentation and user manuals available from ExpertDAQ
- Firmware updates and configuration utilities provided via manufacturer website
- Email and online technical support for configuration and troubleshooting
Maintenance:
- No moving parts; minimal maintenance required
- Periodic inspection of terminal connections recommended
- Firmware can be updated via RS-485 interface
Firmware & Software Updates:
- Firmware version readable via command `$AAF`
- Module name and configuration can be updated using ASCII or Modbus commands
- EEPROM stores all user-defined parameters for persistent configuration
Safety & Reliability Enhancements:
- Power-on and safe-state output values prevent unintended activation
- Host watchdog timeout ensures controlled shutdown in communication loss
- LED indicators provide immediate visual feedback for diagnostics
### Summary
The ExpertDAQ EX9044D is a versatile, high-reliability digital I/O module engineered for industrial automation and remote data acquisition. With 4 isolated digital inputs and 8 open-collector digital outputs, it provides flexible interfacing for sensors, switches, and actuators. Its RS-485 communication capability allows integration into large distributed control systems, supporting up to 256 modules per network. The EX9044D-M variant adds Modbus RTU compatibility, making it ideal for integration with standard industrial controllers and SCADA systems.
Key advantages include 3750 Vrms isolation, dual watchdog protection, wide operating temperature range, and configurable safe and power-on states. The module’s low power consumption, robust design, and comprehensive command set make it suitable for demanding industrial environments requiring reliable, deterministic digital control.
Whether used for machine automation, process monitoring, or building management, the EX9044D delivers dependable performance, flexible configuration, and long-term operational stability in a compact, easy-to-install form factor.
No accessories available.
