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EX9052D-M
8DI (isolated,6 differential, 2 single-ended),LED, Modbus
129,00 EUR
including VAT 153.51 EUR
- 8 Isolated Digital Inputs:
Eight fully isolated differential input channels ensure reliable signal acquisition and protection against ground loops and electrical noise.
- High Isolation Voltage:
3750 Vrms optical isolation between channels and system logic provides excellent protection against transient voltages and interference.
- Wide Input Voltage Range:
Accepts logic‑level signals from +4 V to +30 V for a logic “1” and below +1 V for a logic “0”, allowing compatibility with a wide range of sensors and control signals.
- RS‑485 Communication Interface:
Two‑wire half‑duplex RS‑485 interface supporting baud rates from 1200 bps up to 115.2 kbps. Up to 256 modules can be connected on a single RS‑485 network (maximum cable length 1200 m without repeater).
- Modbus RTU Protocol Support:
Full Modbus RTU compliance for easy integration with PLCs, SCADA systems, and industrial controllers.
- LED Channel Indicators:
Eight front‑panel LEDs display the real‑time status of each input channel for quick diagnostics.
- Low Power Consumption:
Typical power consumption of only 1.2 W at 10–30 V DC supply voltage.
- Extended Temperature Range:
Designed for operation from −25 °C to +75 °C, suitable for demanding industrial and outdoor environments.
- Dual Watchdog System:
Hardware and software watchdogs ensure continuous operation and automatic recovery from communication or system faults.
- EEPROM Configuration Storage:
Retains module address, baud rate, and configuration parameters even after power loss.
- INIT* Configuration Mode:
Rear‑mounted INIT* switch allows easy access to configuration mode for resetting or reprogramming communication parameters.
Eight fully isolated differential input channels ensure reliable signal acquisition and protection against ground loops and electrical noise.
- High Isolation Voltage:
3750 Vrms optical isolation between channels and system logic provides excellent protection against transient voltages and interference.
- Wide Input Voltage Range:
Accepts logic‑level signals from +4 V to +30 V for a logic “1” and below +1 V for a logic “0”, allowing compatibility with a wide range of sensors and control signals.
- RS‑485 Communication Interface:
Two‑wire half‑duplex RS‑485 interface supporting baud rates from 1200 bps up to 115.2 kbps. Up to 256 modules can be connected on a single RS‑485 network (maximum cable length 1200 m without repeater).
- Modbus RTU Protocol Support:
Full Modbus RTU compliance for easy integration with PLCs, SCADA systems, and industrial controllers.
- LED Channel Indicators:
Eight front‑panel LEDs display the real‑time status of each input channel for quick diagnostics.
- Low Power Consumption:
Typical power consumption of only 1.2 W at 10–30 V DC supply voltage.
- Extended Temperature Range:
Designed for operation from −25 °C to +75 °C, suitable for demanding industrial and outdoor environments.
- Dual Watchdog System:
Hardware and software watchdogs ensure continuous operation and automatic recovery from communication or system faults.
- EEPROM Configuration Storage:
Retains module address, baud rate, and configuration parameters even after power loss.
- INIT* Configuration Mode:
Rear‑mounted INIT* switch allows easy access to configuration mode for resetting or reprogramming communication parameters.
Comprehensive Product Summary – ExpertDAQ EX9052D‑M Digital Input Module
### 1. Product Overview
Product Name: ExpertDAQ EX9052D‑M
Model: EX9052D‑M
Series: EX9000 Series – RS‑485 Remote I/O Modules
Article Number: EX9052D‑M
Manufacturer: ExpertDAQ (Expert Data Acquisition Systems)
The ExpertDAQ EX9052D‑M is an industrial‑grade, isolated digital input module designed for distributed data acquisition and control applications. It provides eight isolated differential digital input channels and communicates via the RS‑485 interface using the Modbus RTU protocol. The module is part of the ExpertDAQ EX9000 series, known for its robust design, wide operating temperature range, and reliable performance in harsh industrial environments.
### 2. Key Features
- 8 Isolated Digital Inputs:
Eight fully isolated differential input channels ensure reliable signal acquisition and protection against ground loops and electrical noise.
- High Isolation Voltage:
3750 Vrms optical isolation between channels and system logic provides excellent protection against transient voltages and interference.
- Wide Input Voltage Range:
Accepts logic‑level signals from +4 V to +30 V for a logic “1” and below +1 V for a logic “0”, allowing compatibility with a wide range of sensors and control signals.
- RS‑485 Communication Interface:
Two‑wire half‑duplex RS‑485 interface supporting baud rates from 1200 bps up to 115.2 kbps. Up to 256 modules can be connected on a single RS‑485 network (maximum cable length 1200 m without repeater).
- Modbus RTU Protocol Support:
Full Modbus RTU compliance for easy integration with PLCs, SCADA systems, and industrial controllers.
- LED Channel Indicators:
Eight front‑panel LEDs display the real‑time status of each input channel for quick diagnostics.
- Low Power Consumption:
Typical power consumption of only 1.2 W at 10–30 V DC supply voltage.
- Extended Temperature Range:
Designed for operation from −25 °C to +75 °C, suitable for demanding industrial and outdoor environments.
- Dual Watchdog System:
Hardware and software watchdogs ensure continuous operation and automatic recovery from communication or system faults.
- EEPROM Configuration Storage:
Retains module address, baud rate, and configuration parameters even after power loss.
- INIT* Configuration Mode:
Rear‑mounted INIT* switch allows easy access to configuration mode for resetting or reprogramming communication parameters.
### 3. Technical Specifications
| Parameter | Specification |
|----------------|-------------------|
| Digital Input Channels | 8 isolated differential inputs |
| Input Type | Differential, optically isolated |
| Input Voltage (ON) | +4 V DC to +30 V DC |
| Input Voltage (OFF) | ≤ +1 V DC |
| Input Impedance | 3 kΩ |
| Isolation Voltage | 3750 Vrms optical isolation |
| Interface | RS‑485, 2‑wire half‑duplex |
| Communication Speed | 1200, 2400, 4800, 9600, 19.2 k, 38.4 k, 57.6 k, 115.2 k bps |
| Protocol | Modbus RTU |
| Power Supply | +10 V DC to +30 V DC |
| Power Consumption | 1.2 W typical |
| Operating Temperature | −25 °C to +75 °C |
| Storage Temperature | −30 °C to +75 °C |
| LED Indicators | 8 × channel status LEDs |
| Isolation Type | Optical isolation between channels and logic |
| Mounting | DIN‑rail or panel mount |
| Housing Material | Industrial‑grade ABS enclosure |
| Network Capacity | Up to 256 modules per RS‑485 segment |
| Maximum Cable Length | 1200 m (without repeater) |
### 4. Functionality
The EX9052D‑M functions as a remote digital input acquisition device. Each of its eight isolated differential input channels can detect the ON/OFF state of external digital signals such as switches, sensors, or logic outputs. The module converts these signals into Modbus‑compliant data accessible via RS‑485 communication.
Operation Principle:
- Each input channel is optically isolated to prevent ground potential differences and protect against surges.
- The module continuously monitors input states and updates internal registers accessible through Modbus RTU commands.
- LED indicators provide immediate visual feedback of input status.
- Configuration parameters (address, baud rate, parity, etc.) are stored in non‑volatile memory.
Typical Use Cases:
- Industrial automation and process control
- Remote monitoring of digital sensors and switches
- Building management systems (BMS)
- Machine status monitoring
- Distributed I/O expansion for PLCs and SCADA systems
- Energy management and environmental monitoring
Compatibility:
- Compatible with any Modbus RTU master device (PLC, HMI, SCADA, PC‑based controller).
- Works with ExpertDAQ configuration utilities and third‑party Modbus software.
### 5. Components & Accessories
Included Components:
- EX9052D‑M module
- Removable terminal block connectors for input and power wiring
- Quick‑start guide and Modbus register map
- Configuration utility software (downloadable)
Optional Accessories:
- RS‑485 to USB converter for PC configuration
- RS‑485 repeaters or hubs for extended networks
- DIN‑rail mounting kit
- Power supply (10–30 V DC industrial adapter)
- Shielded twisted‑pair communication cable
Connectors:
- Power Input: +10 V DC to +30 V DC terminal
- RS‑485 Interface: Two‑wire differential pair (DATA+, DATA−)
- Digital Inputs: 8 isolated differential input terminals
### 6. Installation & Setup
Requirements:
- DC power supply (10–30 V DC)
- RS‑485 network connection (twisted‑pair cable)
- Modbus RTU master device or configuration PC
Mounting Options:
- DIN‑rail mounting (standard 35 mm rail)
- Panel mounting via screw holes
Setup Procedure:
1. Power Off the system before wiring.
2. Connect Inputs: Wire sensors or switches to the input terminals according to the wiring diagram (supports dry contact, TTL/CMOS, or open‑collector signals).
3. Connect RS‑485 Bus: Connect DATA+ and DATA− lines to the network.
4. Apply Power: Supply 10–30 V DC to the power terminals.
5. Configure Communication:
- Default Modbus address: 01
- Default baud rate: 9600 bps
- Default protocol: Modbus RTU
6. Use INIT* Mode (if needed):
- Slide the rear INIT* switch to the “Init” position and power on to enter configuration mode.
- Adjust address, baud rate, or protocol using ASCII commands or ExpertDAQ utility.
- Return switch to “Normal” position and power cycle to apply new settings.
Network Integration:
- Up to 256 modules can share one RS‑485 bus.
- Use proper termination resistors (typically 120 Ω) at both ends of the bus.
- Maintain correct polarity and shielding for noise immunity.
### 7. Performance & Capabilities
- High‑Speed Communication: Supports baud rates up to 115.2 kbps for fast data acquisition.
- Low Latency: Efficient Modbus RTU response for real‑time monitoring.
- High Reliability: Dual watchdog system (hardware + host) ensures continuous operation even under communication loss or system faults.
- Input Counter Function: Each channel can count digital pulses up to 65,535 (0xFFFF) for event counting or frequency measurement.
- Latch Function: Captures transient input pulses (latch‑high or latch‑low) to prevent missed events.
- EEPROM Storage: Configuration and status data retained during power loss.
- Power‑On and Safe Values: Predefined states ensure predictable behavior after reset or communication timeout.
- Wide Environmental Tolerance: Operates reliably in industrial temperature ranges and electrically noisy environments.
Limitations:
- Digital input only (no analog or output channels).
- Requires external Modbus master for operation.
- Maximum cable length limited to 1200 m without repeater.
### 8. Standards & Compliance
- Communication Standard: Modbus RTU over RS‑485 (EIA‑485 compliant)
- Isolation Standard: 3750 Vrms optical isolation between field and logic circuits
- Electrical Safety: Designed for industrial low‑voltage DC systems
- Environmental Compliance:
- Operating temperature: −25 °C to +75 °C
- Storage temperature: −30 °C to +75 °C
- EMC/EMI Immunity: Suitable for industrial electromagnetic environments
- RoHS Compliance: Lead‑free and environmentally safe materials
- Quality Assurance: Manufactured under ISO‑certified quality control processes
### 9. Additional Information
Warranty:
Standard manufacturer warranty (typically 2 years) covering defects in materials and workmanship under normal use.
Technical Support:
ExpertDAQ provides comprehensive technical documentation, Modbus register maps, and configuration utilities. Support is available via email, online resources, and distributor channels.
Maintenance:
- Periodically inspect wiring and terminal connections.
- Keep module free from dust and moisture.
- No internal user‑serviceable parts; contact manufacturer for service.
Firmware & Updates:
- Firmware version readable via Modbus command `$AAF`.
- Updates available through ExpertDAQ support for performance improvements or protocol enhancements.
Safety Notes:
- Ensure proper grounding and shielding of RS‑485 network.
- Do not exceed rated input voltage or isolation limits.
- Disconnect power before wiring or maintenance.
### Summary Table
| Category | Details |
|---------------|-------------|
| Model | EX9052D‑M |
| Type | 8‑channel isolated digital input module |
| Interface | RS‑485 (2‑wire, half‑duplex) |
| Protocol | Modbus RTU |
| Input Channels | 8 isolated differential |
| Input Voltage Range | Logic 1: +4 V – +30 V; Logic 0: ≤ +1 V |
| Input Impedance | 3 kΩ |
| Isolation Voltage | 3750 Vrms |
| Power Supply | 10 – 30 V DC |
| Power Consumption | 1.2 W |
| Operating Temp. | −25 °C – +75 °C |
| Storage Temp. | −30 °C – +75 °C |
| Indicators | 8 × LEDs (input status) |
| Watchdog | Hardware + Host (dual watchdog) |
| Configuration | EEPROM storage, INIT* switch |
| Mounting | DIN‑rail / panel |
| Network Capacity | 256 modules per RS‑485 segment |
| Max Cable Length | 1200 m (without repeater) |
| Compliance | Modbus RTU, RS‑485, RoHS |
| Applications | Industrial automation, SCADA, remote I/O, monitoring |
### Conclusion
The ExpertDAQ EX9052D‑M is a robust, high‑performance digital input module engineered for industrial data acquisition and control systems. With eight isolated differential inputs, Modbus RTU communication, and a wide operating temperature range, it provides reliable and noise‑immune signal acquisition in demanding environments. Its low power consumption, dual watchdog protection, and flexible configuration options make it ideal for distributed I/O networks, SCADA integration, and remote monitoring applications.
The module’s combination of electrical isolation, Modbus interoperability, and industrial durability ensures long‑term stability and ease of integration into modern automation infrastructures.
### 1. Product Overview
Product Name: ExpertDAQ EX9052D‑M
Model: EX9052D‑M
Series: EX9000 Series – RS‑485 Remote I/O Modules
Article Number: EX9052D‑M
Manufacturer: ExpertDAQ (Expert Data Acquisition Systems)
The ExpertDAQ EX9052D‑M is an industrial‑grade, isolated digital input module designed for distributed data acquisition and control applications. It provides eight isolated differential digital input channels and communicates via the RS‑485 interface using the Modbus RTU protocol. The module is part of the ExpertDAQ EX9000 series, known for its robust design, wide operating temperature range, and reliable performance in harsh industrial environments.
### 2. Key Features
- 8 Isolated Digital Inputs:
Eight fully isolated differential input channels ensure reliable signal acquisition and protection against ground loops and electrical noise.
- High Isolation Voltage:
3750 Vrms optical isolation between channels and system logic provides excellent protection against transient voltages and interference.
- Wide Input Voltage Range:
Accepts logic‑level signals from +4 V to +30 V for a logic “1” and below +1 V for a logic “0”, allowing compatibility with a wide range of sensors and control signals.
- RS‑485 Communication Interface:
Two‑wire half‑duplex RS‑485 interface supporting baud rates from 1200 bps up to 115.2 kbps. Up to 256 modules can be connected on a single RS‑485 network (maximum cable length 1200 m without repeater).
- Modbus RTU Protocol Support:
Full Modbus RTU compliance for easy integration with PLCs, SCADA systems, and industrial controllers.
- LED Channel Indicators:
Eight front‑panel LEDs display the real‑time status of each input channel for quick diagnostics.
- Low Power Consumption:
Typical power consumption of only 1.2 W at 10–30 V DC supply voltage.
- Extended Temperature Range:
Designed for operation from −25 °C to +75 °C, suitable for demanding industrial and outdoor environments.
- Dual Watchdog System:
Hardware and software watchdogs ensure continuous operation and automatic recovery from communication or system faults.
- EEPROM Configuration Storage:
Retains module address, baud rate, and configuration parameters even after power loss.
- INIT* Configuration Mode:
Rear‑mounted INIT* switch allows easy access to configuration mode for resetting or reprogramming communication parameters.
### 3. Technical Specifications
| Parameter | Specification |
|----------------|-------------------|
| Digital Input Channels | 8 isolated differential inputs |
| Input Type | Differential, optically isolated |
| Input Voltage (ON) | +4 V DC to +30 V DC |
| Input Voltage (OFF) | ≤ +1 V DC |
| Input Impedance | 3 kΩ |
| Isolation Voltage | 3750 Vrms optical isolation |
| Interface | RS‑485, 2‑wire half‑duplex |
| Communication Speed | 1200, 2400, 4800, 9600, 19.2 k, 38.4 k, 57.6 k, 115.2 k bps |
| Protocol | Modbus RTU |
| Power Supply | +10 V DC to +30 V DC |
| Power Consumption | 1.2 W typical |
| Operating Temperature | −25 °C to +75 °C |
| Storage Temperature | −30 °C to +75 °C |
| LED Indicators | 8 × channel status LEDs |
| Isolation Type | Optical isolation between channels and logic |
| Mounting | DIN‑rail or panel mount |
| Housing Material | Industrial‑grade ABS enclosure |
| Network Capacity | Up to 256 modules per RS‑485 segment |
| Maximum Cable Length | 1200 m (without repeater) |
### 4. Functionality
The EX9052D‑M functions as a remote digital input acquisition device. Each of its eight isolated differential input channels can detect the ON/OFF state of external digital signals such as switches, sensors, or logic outputs. The module converts these signals into Modbus‑compliant data accessible via RS‑485 communication.
Operation Principle:
- Each input channel is optically isolated to prevent ground potential differences and protect against surges.
- The module continuously monitors input states and updates internal registers accessible through Modbus RTU commands.
- LED indicators provide immediate visual feedback of input status.
- Configuration parameters (address, baud rate, parity, etc.) are stored in non‑volatile memory.
Typical Use Cases:
- Industrial automation and process control
- Remote monitoring of digital sensors and switches
- Building management systems (BMS)
- Machine status monitoring
- Distributed I/O expansion for PLCs and SCADA systems
- Energy management and environmental monitoring
Compatibility:
- Compatible with any Modbus RTU master device (PLC, HMI, SCADA, PC‑based controller).
- Works with ExpertDAQ configuration utilities and third‑party Modbus software.
### 5. Components & Accessories
Included Components:
- EX9052D‑M module
- Removable terminal block connectors for input and power wiring
- Quick‑start guide and Modbus register map
- Configuration utility software (downloadable)
Optional Accessories:
- RS‑485 to USB converter for PC configuration
- RS‑485 repeaters or hubs for extended networks
- DIN‑rail mounting kit
- Power supply (10–30 V DC industrial adapter)
- Shielded twisted‑pair communication cable
Connectors:
- Power Input: +10 V DC to +30 V DC terminal
- RS‑485 Interface: Two‑wire differential pair (DATA+, DATA−)
- Digital Inputs: 8 isolated differential input terminals
### 6. Installation & Setup
Requirements:
- DC power supply (10–30 V DC)
- RS‑485 network connection (twisted‑pair cable)
- Modbus RTU master device or configuration PC
Mounting Options:
- DIN‑rail mounting (standard 35 mm rail)
- Panel mounting via screw holes
Setup Procedure:
1. Power Off the system before wiring.
2. Connect Inputs: Wire sensors or switches to the input terminals according to the wiring diagram (supports dry contact, TTL/CMOS, or open‑collector signals).
3. Connect RS‑485 Bus: Connect DATA+ and DATA− lines to the network.
4. Apply Power: Supply 10–30 V DC to the power terminals.
5. Configure Communication:
- Default Modbus address: 01
- Default baud rate: 9600 bps
- Default protocol: Modbus RTU
6. Use INIT* Mode (if needed):
- Slide the rear INIT* switch to the “Init” position and power on to enter configuration mode.
- Adjust address, baud rate, or protocol using ASCII commands or ExpertDAQ utility.
- Return switch to “Normal” position and power cycle to apply new settings.
Network Integration:
- Up to 256 modules can share one RS‑485 bus.
- Use proper termination resistors (typically 120 Ω) at both ends of the bus.
- Maintain correct polarity and shielding for noise immunity.
### 7. Performance & Capabilities
- High‑Speed Communication: Supports baud rates up to 115.2 kbps for fast data acquisition.
- Low Latency: Efficient Modbus RTU response for real‑time monitoring.
- High Reliability: Dual watchdog system (hardware + host) ensures continuous operation even under communication loss or system faults.
- Input Counter Function: Each channel can count digital pulses up to 65,535 (0xFFFF) for event counting or frequency measurement.
- Latch Function: Captures transient input pulses (latch‑high or latch‑low) to prevent missed events.
- EEPROM Storage: Configuration and status data retained during power loss.
- Power‑On and Safe Values: Predefined states ensure predictable behavior after reset or communication timeout.
- Wide Environmental Tolerance: Operates reliably in industrial temperature ranges and electrically noisy environments.
Limitations:
- Digital input only (no analog or output channels).
- Requires external Modbus master for operation.
- Maximum cable length limited to 1200 m without repeater.
### 8. Standards & Compliance
- Communication Standard: Modbus RTU over RS‑485 (EIA‑485 compliant)
- Isolation Standard: 3750 Vrms optical isolation between field and logic circuits
- Electrical Safety: Designed for industrial low‑voltage DC systems
- Environmental Compliance:
- Operating temperature: −25 °C to +75 °C
- Storage temperature: −30 °C to +75 °C
- EMC/EMI Immunity: Suitable for industrial electromagnetic environments
- RoHS Compliance: Lead‑free and environmentally safe materials
- Quality Assurance: Manufactured under ISO‑certified quality control processes
### 9. Additional Information
Warranty:
Standard manufacturer warranty (typically 2 years) covering defects in materials and workmanship under normal use.
Technical Support:
ExpertDAQ provides comprehensive technical documentation, Modbus register maps, and configuration utilities. Support is available via email, online resources, and distributor channels.
Maintenance:
- Periodically inspect wiring and terminal connections.
- Keep module free from dust and moisture.
- No internal user‑serviceable parts; contact manufacturer for service.
Firmware & Updates:
- Firmware version readable via Modbus command `$AAF`.
- Updates available through ExpertDAQ support for performance improvements or protocol enhancements.
Safety Notes:
- Ensure proper grounding and shielding of RS‑485 network.
- Do not exceed rated input voltage or isolation limits.
- Disconnect power before wiring or maintenance.
### Summary Table
| Category | Details |
|---------------|-------------|
| Model | EX9052D‑M |
| Type | 8‑channel isolated digital input module |
| Interface | RS‑485 (2‑wire, half‑duplex) |
| Protocol | Modbus RTU |
| Input Channels | 8 isolated differential |
| Input Voltage Range | Logic 1: +4 V – +30 V; Logic 0: ≤ +1 V |
| Input Impedance | 3 kΩ |
| Isolation Voltage | 3750 Vrms |
| Power Supply | 10 – 30 V DC |
| Power Consumption | 1.2 W |
| Operating Temp. | −25 °C – +75 °C |
| Storage Temp. | −30 °C – +75 °C |
| Indicators | 8 × LEDs (input status) |
| Watchdog | Hardware + Host (dual watchdog) |
| Configuration | EEPROM storage, INIT* switch |
| Mounting | DIN‑rail / panel |
| Network Capacity | 256 modules per RS‑485 segment |
| Max Cable Length | 1200 m (without repeater) |
| Compliance | Modbus RTU, RS‑485, RoHS |
| Applications | Industrial automation, SCADA, remote I/O, monitoring |
### Conclusion
The ExpertDAQ EX9052D‑M is a robust, high‑performance digital input module engineered for industrial data acquisition and control systems. With eight isolated differential inputs, Modbus RTU communication, and a wide operating temperature range, it provides reliable and noise‑immune signal acquisition in demanding environments. Its low power consumption, dual watchdog protection, and flexible configuration options make it ideal for distributed I/O networks, SCADA integration, and remote monitoring applications.
The module’s combination of electrical isolation, Modbus interoperability, and industrial durability ensures long‑term stability and ease of integration into modern automation infrastructures.
No accessories available.
