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- Seven Relay Output Channels:
Provides 7 Form A (normally open) relay outputs, each capable of switching up to 1.0 A at 24 VDC or 0.5 A at 120 VAC.
- RS-485 Communication Interface:
Two-wire RS-485 interface supporting multiple baud rates (1200 to 115.2 kbps) and Modbus RTU/ASCII protocols. Up to 256 modules can be connected in a single RS-485 network with a maximum cable length of 1200 meters (without repeater).
- LED Channel Indicators:
Each output channel includes an individual LED indicator for real-time status monitoring.
- Galvanic Isolation:
Input and output circuits are galvanically isolated to protect against electrical noise and ground potential differences.
- Wide Power Supply Range:
Operates from a 10–30 VDC power source, consuming approximately 1.9 W.
- Extended Temperature Range:
Designed for operation in harsh environments, with an operating temperature range from -25°C to +75°C and storage range from -30°C to +75°C.
- Dual Watchdog System:
Incorporates both hardware (module) and software (host) watchdogs to ensure continuous operation and fail-safe behavior in case of communication or system errors.
- EEPROM Configuration Storage:
Stores configuration parameters such as address, baud rate, and protocol settings in non-volatile memory.
- INIT* Mode for Configuration Recovery:
A dedicated INIT* switch or terminal allows resetting the module to default communication parameters for troubleshooting or reconfiguration.
- Modbus Protocol Support:
Fully compatible with Modbus RTU and ASCII command sets, enabling easy integration with PLCs, SCADA systems, and industrial PCs.
Provides 7 Form A (normally open) relay outputs, each capable of switching up to 1.0 A at 24 VDC or 0.5 A at 120 VAC.
- RS-485 Communication Interface:
Two-wire RS-485 interface supporting multiple baud rates (1200 to 115.2 kbps) and Modbus RTU/ASCII protocols. Up to 256 modules can be connected in a single RS-485 network with a maximum cable length of 1200 meters (without repeater).
- LED Channel Indicators:
Each output channel includes an individual LED indicator for real-time status monitoring.
- Galvanic Isolation:
Input and output circuits are galvanically isolated to protect against electrical noise and ground potential differences.
- Wide Power Supply Range:
Operates from a 10–30 VDC power source, consuming approximately 1.9 W.
- Extended Temperature Range:
Designed for operation in harsh environments, with an operating temperature range from -25°C to +75°C and storage range from -30°C to +75°C.
- Dual Watchdog System:
Incorporates both hardware (module) and software (host) watchdogs to ensure continuous operation and fail-safe behavior in case of communication or system errors.
- EEPROM Configuration Storage:
Stores configuration parameters such as address, baud rate, and protocol settings in non-volatile memory.
- INIT* Mode for Configuration Recovery:
A dedicated INIT* switch or terminal allows resetting the module to default communication parameters for troubleshooting or reconfiguration.
- Modbus Protocol Support:
Fully compatible with Modbus RTU and ASCII command sets, enabling easy integration with PLCs, SCADA systems, and industrial PCs.
Comprehensive Product Summary – ExpertDAQ EX9067D-M RS485 Relay Output Module
### 1. Product Overview
Product Name: ExpertDAQ EX9067D-M
Model: EX9067D-M
Series: EX9000 Series (Digital Output Modules)
Article Number: EX9067D-M
Manufacturer: ExpertDAQ
The ExpertDAQ EX9067D-M is a robust, industrial-grade digital output module designed for distributed control systems using the RS-485 communication interface. It provides seven independent relay output channels (Form A, normally open) and supports the Modbus RTU protocol for seamless integration into automation networks. The module is engineered for high reliability, extended temperature operation, and galvanic isolation, making it suitable for demanding industrial environments such as factory automation, process control, and remote I/O systems.
### 2. Key Features
- Seven Relay Output Channels:
Provides 7 Form A (normally open) relay outputs, each capable of switching up to 1.0 A at 24 VDC or 0.5 A at 120 VAC.
- RS-485 Communication Interface:
Two-wire RS-485 interface supporting multiple baud rates (1200 to 115.2 kbps) and Modbus RTU/ASCII protocols. Up to 256 modules can be connected in a single RS-485 network with a maximum cable length of 1200 meters (without repeater).
- LED Channel Indicators:
Each output channel includes an individual LED indicator for real-time status monitoring.
- Galvanic Isolation:
Input and output circuits are galvanically isolated to protect against electrical noise and ground potential differences.
- Wide Power Supply Range:
Operates from a 10–30 VDC power source, consuming approximately 1.9 W.
- Extended Temperature Range:
Designed for operation in harsh environments, with an operating temperature range from -25°C to +75°C and storage range from -30°C to +75°C.
- Dual Watchdog System:
Incorporates both hardware (module) and software (host) watchdogs to ensure continuous operation and fail-safe behavior in case of communication or system errors.
- EEPROM Configuration Storage:
Stores configuration parameters such as address, baud rate, and protocol settings in non-volatile memory.
- INIT* Mode for Configuration Recovery:
A dedicated INIT* switch or terminal allows resetting the module to default communication parameters for troubleshooting or reconfiguration.
- Modbus Protocol Support:
Fully compatible with Modbus RTU and ASCII command sets, enabling easy integration with PLCs, SCADA systems, and industrial PCs.
### 3. Technical Specifications
| Parameter | Specification |
|----------------|-------------------|
| Interface | RS-485, 2-wire |
| Communication Speed | 1200, 2400, 4800, 9600, 19.2K, 38.4K, 57.6K, 115.2K bps |
| Protocol | Modbus RTU / ASCII |
| Output Channels | 7 Relay Outputs (Form A, Normally Open) |
| Relay Contact Rating | 0.5 A @ 120 VAC, 1.0 A @ 24 VDC |
| Surge Strength | 1500 V |
| Operate Time | ≤ 5 ms |
| Release Time | ≤ 2 ms |
| Minimum Mechanical Life | ≥ 10⁵ operations |
| Isolation Voltage | 5000 VDC (I/O isolation) |
| Power Supply | +10 VDC to +30 VDC |
| Power Consumption | 1.9 W typical |
| Digital Level 0 | < +1 V |
| Digital Level 1 | 4 – 30 V |
| Operating Temperature | -25°C to +75°C |
| Storage Temperature | -30°C to +75°C |
| LED Indicators | 7 LEDs (one per output channel) |
| Mounting | DIN-rail or panel mount (depending on enclosure) |
| Network Capacity | Up to 256 modules per RS-485 network |
| Maximum Cable Length | 1200 m (without repeater) |
### 4. Functionality
The EX9067D-M functions as a digital output module that converts Modbus or ASCII commands received via RS-485 into relay switching actions. Each of the seven output channels can independently control external devices such as solenoids, contactors, alarms, or indicator lamps.
Operation Principle:
- The host controller (PLC, PC, or SCADA system) sends digital output commands to the module using Modbus RTU or ASCII syntax.
- The module interprets these commands and actuates the corresponding relay outputs.
- Each relay’s state is visually indicated by an LED on the module front panel.
- The module can also report its current output status, configuration, and firmware version back to the host.
Use Cases and Applications:
- Industrial automation and process control
- Remote I/O expansion for PLCs
- Building automation (lighting, HVAC control)
- Machine control and monitoring
- Data acquisition systems
- Telecommunication equipment
- High-speed inspection and test systems
Compatibility:
- Compatible with Modbus RTU/ASCII master devices
- Integrates with ExpertDAQ’s EX9000 series modules
- Works with standard RS-485 networks and Modbus-compatible software
### 5. Components & Accessories
Included Components:
- EX9067D-M module
- User manual and configuration guide
- Software utilities for configuration and communication testing
Optional Accessories:
- RS-485 to USB or RS-232 converters
- RS-485 repeaters for extended cable lengths
- DIN-rail mounting kits
- Power supply units (10–30 VDC)
- Terminal blocks and wiring harnesses
Connectors:
- RS-485 communication terminals (A/B differential pair)
- Power input terminals (+V, GND)
- Relay output terminals (7 channels, Form A contacts)
- INIT* terminal or switch for configuration reset
### 6. Installation & Setup
Requirements:
- DC power supply (10–30 VDC)
- RS-485 network connection (2-wire twisted pair)
- Host controller or PC with Modbus RTU/ASCII capability
Mounting Options:
- DIN-rail mounting for industrial control panels
- Panel mounting for fixed installations
Configuration Steps:
1. Power Connection: Connect +V and GND to a regulated 10–30 VDC power source.
2. RS-485 Wiring: Connect the A and B terminals to the RS-485 network bus.
3. Address and Baud Rate Setup:
- Default address: 01
- Default baud rate: 9600 bps
- Default protocol: ASCII command mode
Configuration can be changed using Modbus commands or via INIT* mode.
4. INIT* Mode Activation:
- Power off the module.
- Connect INIT* terminal to GND or slide the INIT* switch to “Init” position.
- Power on the module to enter default configuration mode (Address=00, Baud=9600 bps, no checksum).
5. Verification: Use the provided software or Modbus master to read configuration and test output channels.
### 7. Performance & Capabilities
Switching Performance:
- Operate time ≤ 5 ms ensures responsive control.
- Release time ≤ 2 ms for quick deactivation.
- Minimum mechanical life of 100,000 operations ensures long-term reliability.
Electrical Performance:
- Each relay channel supports up to 1.0 A at 24 VDC or 0.5 A at 120 VAC.
- Surge protection up to 1500 V enhances durability in noisy environments.
- 5000 VDC isolation prevents ground loops and protects against transient voltages.
Communication Performance:
- Supports baud rates from 1200 to 115.2 kbps.
- Reliable communication over distances up to 1200 m without repeaters.
- Supports up to 256 modules per RS-485 network.
Efficiency:
- Low power consumption (1.9 W typical) allows for energy-efficient operation in large installations.
Limitations:
- Relay outputs are mechanical; not suitable for high-frequency switching applications.
- Maximum current limited to 1.0 A per channel.
- Requires proper RS-485 termination and biasing for stable communication.
### 8. Standards & Compliance
Electrical and Safety Standards:
- Isolation voltage: 5000 VDC (I/O isolation)
- Surge strength: 1500 V
- Designed for industrial EMC environments
Communication Standards:
- RS-485 (EIA/TIA-485 standard)
- Modbus RTU and ASCII protocol compliance
Environmental Compliance:
- Operating temperature: -25°C to +75°C
- Storage temperature: -30°C to +75°C
- Suitable for industrial temperature and humidity ranges
Quality and Reliability:
- Built-in hardware and software watchdogs for fault tolerance
- EEPROM-based configuration retention
- Designed for continuous 24/7 operation in industrial systems
### 9. Additional Information
Warranty:
Typically covered under ExpertDAQ’s standard industrial product warranty (duration varies by region and distributor).
Technical Support:
ExpertDAQ provides technical documentation, configuration software, and online support resources for integration and troubleshooting.
Maintenance:
- Periodic inspection of relay contacts recommended for high-load applications.
- Ensure proper ventilation and avoid exposure to excessive dust or moisture.
- Firmware updates can be performed via RS-485 interface using ExpertDAQ tools.
Firmware & Software Updates:
- Firmware version can be read using command `$AAF`.
- Module name and configuration can be updated using `~AAO(Data)` and `%AANNTTCCFF` commands.
- Configuration parameters are stored in EEPROM and retained after power loss.
Reliability Features:
- Dual Watchdog System:
- *Module Watchdog* monitors internal operation and resets the module in case of malfunction.
- *Host Watchdog* monitors communication with the host; if timeout occurs, outputs revert to predefined Safe Values.
- Safe and Power-On Values:
- Configurable via `~AA4V` and `~AA5V` commands to define output states during startup or communication failure.
- Reset and Status Monitoring:
- Commands `$AA5` and `~AA0` allow reading reset and watchdog status for diagnostics.
Network Integration Example:
- Multiple EX9067D-M modules can be daisy-chained on a single RS-485 bus.
- Each module is assigned a unique address (00–FF).
- The host system communicates using Modbus RTU commands to control and monitor outputs.
### Summary
The ExpertDAQ EX9067D-M is a versatile, high-reliability 7-channel relay output module designed for RS-485 Modbus networks. It combines robust electrical isolation, flexible configuration, and industrial-grade performance in a compact form factor. With its dual watchdog system, EEPROM configuration storage, and wide operating temperature range, the EX9067D-M ensures dependable operation in mission-critical automation and control applications.
Its 7 Form A relay outputs, LED indicators, and comprehensive Modbus command set make it ideal for controlling discrete devices in distributed I/O systems. The module’s ease of configuration, long service life, and compatibility with standard Modbus RTU/ASCII systems make it a preferred choice for engineers and system integrators seeking reliable digital output solutions for industrial environments.
### 1. Product Overview
Product Name: ExpertDAQ EX9067D-M
Model: EX9067D-M
Series: EX9000 Series (Digital Output Modules)
Article Number: EX9067D-M
Manufacturer: ExpertDAQ
The ExpertDAQ EX9067D-M is a robust, industrial-grade digital output module designed for distributed control systems using the RS-485 communication interface. It provides seven independent relay output channels (Form A, normally open) and supports the Modbus RTU protocol for seamless integration into automation networks. The module is engineered for high reliability, extended temperature operation, and galvanic isolation, making it suitable for demanding industrial environments such as factory automation, process control, and remote I/O systems.
### 2. Key Features
- Seven Relay Output Channels:
Provides 7 Form A (normally open) relay outputs, each capable of switching up to 1.0 A at 24 VDC or 0.5 A at 120 VAC.
- RS-485 Communication Interface:
Two-wire RS-485 interface supporting multiple baud rates (1200 to 115.2 kbps) and Modbus RTU/ASCII protocols. Up to 256 modules can be connected in a single RS-485 network with a maximum cable length of 1200 meters (without repeater).
- LED Channel Indicators:
Each output channel includes an individual LED indicator for real-time status monitoring.
- Galvanic Isolation:
Input and output circuits are galvanically isolated to protect against electrical noise and ground potential differences.
- Wide Power Supply Range:
Operates from a 10–30 VDC power source, consuming approximately 1.9 W.
- Extended Temperature Range:
Designed for operation in harsh environments, with an operating temperature range from -25°C to +75°C and storage range from -30°C to +75°C.
- Dual Watchdog System:
Incorporates both hardware (module) and software (host) watchdogs to ensure continuous operation and fail-safe behavior in case of communication or system errors.
- EEPROM Configuration Storage:
Stores configuration parameters such as address, baud rate, and protocol settings in non-volatile memory.
- INIT* Mode for Configuration Recovery:
A dedicated INIT* switch or terminal allows resetting the module to default communication parameters for troubleshooting or reconfiguration.
- Modbus Protocol Support:
Fully compatible with Modbus RTU and ASCII command sets, enabling easy integration with PLCs, SCADA systems, and industrial PCs.
### 3. Technical Specifications
| Parameter | Specification |
|----------------|-------------------|
| Interface | RS-485, 2-wire |
| Communication Speed | 1200, 2400, 4800, 9600, 19.2K, 38.4K, 57.6K, 115.2K bps |
| Protocol | Modbus RTU / ASCII |
| Output Channels | 7 Relay Outputs (Form A, Normally Open) |
| Relay Contact Rating | 0.5 A @ 120 VAC, 1.0 A @ 24 VDC |
| Surge Strength | 1500 V |
| Operate Time | ≤ 5 ms |
| Release Time | ≤ 2 ms |
| Minimum Mechanical Life | ≥ 10⁵ operations |
| Isolation Voltage | 5000 VDC (I/O isolation) |
| Power Supply | +10 VDC to +30 VDC |
| Power Consumption | 1.9 W typical |
| Digital Level 0 | < +1 V |
| Digital Level 1 | 4 – 30 V |
| Operating Temperature | -25°C to +75°C |
| Storage Temperature | -30°C to +75°C |
| LED Indicators | 7 LEDs (one per output channel) |
| Mounting | DIN-rail or panel mount (depending on enclosure) |
| Network Capacity | Up to 256 modules per RS-485 network |
| Maximum Cable Length | 1200 m (without repeater) |
### 4. Functionality
The EX9067D-M functions as a digital output module that converts Modbus or ASCII commands received via RS-485 into relay switching actions. Each of the seven output channels can independently control external devices such as solenoids, contactors, alarms, or indicator lamps.
Operation Principle:
- The host controller (PLC, PC, or SCADA system) sends digital output commands to the module using Modbus RTU or ASCII syntax.
- The module interprets these commands and actuates the corresponding relay outputs.
- Each relay’s state is visually indicated by an LED on the module front panel.
- The module can also report its current output status, configuration, and firmware version back to the host.
Use Cases and Applications:
- Industrial automation and process control
- Remote I/O expansion for PLCs
- Building automation (lighting, HVAC control)
- Machine control and monitoring
- Data acquisition systems
- Telecommunication equipment
- High-speed inspection and test systems
Compatibility:
- Compatible with Modbus RTU/ASCII master devices
- Integrates with ExpertDAQ’s EX9000 series modules
- Works with standard RS-485 networks and Modbus-compatible software
### 5. Components & Accessories
Included Components:
- EX9067D-M module
- User manual and configuration guide
- Software utilities for configuration and communication testing
Optional Accessories:
- RS-485 to USB or RS-232 converters
- RS-485 repeaters for extended cable lengths
- DIN-rail mounting kits
- Power supply units (10–30 VDC)
- Terminal blocks and wiring harnesses
Connectors:
- RS-485 communication terminals (A/B differential pair)
- Power input terminals (+V, GND)
- Relay output terminals (7 channels, Form A contacts)
- INIT* terminal or switch for configuration reset
### 6. Installation & Setup
Requirements:
- DC power supply (10–30 VDC)
- RS-485 network connection (2-wire twisted pair)
- Host controller or PC with Modbus RTU/ASCII capability
Mounting Options:
- DIN-rail mounting for industrial control panels
- Panel mounting for fixed installations
Configuration Steps:
1. Power Connection: Connect +V and GND to a regulated 10–30 VDC power source.
2. RS-485 Wiring: Connect the A and B terminals to the RS-485 network bus.
3. Address and Baud Rate Setup:
- Default address: 01
- Default baud rate: 9600 bps
- Default protocol: ASCII command mode
Configuration can be changed using Modbus commands or via INIT* mode.
4. INIT* Mode Activation:
- Power off the module.
- Connect INIT* terminal to GND or slide the INIT* switch to “Init” position.
- Power on the module to enter default configuration mode (Address=00, Baud=9600 bps, no checksum).
5. Verification: Use the provided software or Modbus master to read configuration and test output channels.
### 7. Performance & Capabilities
Switching Performance:
- Operate time ≤ 5 ms ensures responsive control.
- Release time ≤ 2 ms for quick deactivation.
- Minimum mechanical life of 100,000 operations ensures long-term reliability.
Electrical Performance:
- Each relay channel supports up to 1.0 A at 24 VDC or 0.5 A at 120 VAC.
- Surge protection up to 1500 V enhances durability in noisy environments.
- 5000 VDC isolation prevents ground loops and protects against transient voltages.
Communication Performance:
- Supports baud rates from 1200 to 115.2 kbps.
- Reliable communication over distances up to 1200 m without repeaters.
- Supports up to 256 modules per RS-485 network.
Efficiency:
- Low power consumption (1.9 W typical) allows for energy-efficient operation in large installations.
Limitations:
- Relay outputs are mechanical; not suitable for high-frequency switching applications.
- Maximum current limited to 1.0 A per channel.
- Requires proper RS-485 termination and biasing for stable communication.
### 8. Standards & Compliance
Electrical and Safety Standards:
- Isolation voltage: 5000 VDC (I/O isolation)
- Surge strength: 1500 V
- Designed for industrial EMC environments
Communication Standards:
- RS-485 (EIA/TIA-485 standard)
- Modbus RTU and ASCII protocol compliance
Environmental Compliance:
- Operating temperature: -25°C to +75°C
- Storage temperature: -30°C to +75°C
- Suitable for industrial temperature and humidity ranges
Quality and Reliability:
- Built-in hardware and software watchdogs for fault tolerance
- EEPROM-based configuration retention
- Designed for continuous 24/7 operation in industrial systems
### 9. Additional Information
Warranty:
Typically covered under ExpertDAQ’s standard industrial product warranty (duration varies by region and distributor).
Technical Support:
ExpertDAQ provides technical documentation, configuration software, and online support resources for integration and troubleshooting.
Maintenance:
- Periodic inspection of relay contacts recommended for high-load applications.
- Ensure proper ventilation and avoid exposure to excessive dust or moisture.
- Firmware updates can be performed via RS-485 interface using ExpertDAQ tools.
Firmware & Software Updates:
- Firmware version can be read using command `$AAF`.
- Module name and configuration can be updated using `~AAO(Data)` and `%AANNTTCCFF` commands.
- Configuration parameters are stored in EEPROM and retained after power loss.
Reliability Features:
- Dual Watchdog System:
- *Module Watchdog* monitors internal operation and resets the module in case of malfunction.
- *Host Watchdog* monitors communication with the host; if timeout occurs, outputs revert to predefined Safe Values.
- Safe and Power-On Values:
- Configurable via `~AA4V` and `~AA5V` commands to define output states during startup or communication failure.
- Reset and Status Monitoring:
- Commands `$AA5` and `~AA0` allow reading reset and watchdog status for diagnostics.
Network Integration Example:
- Multiple EX9067D-M modules can be daisy-chained on a single RS-485 bus.
- Each module is assigned a unique address (00–FF).
- The host system communicates using Modbus RTU commands to control and monitor outputs.
### Summary
The ExpertDAQ EX9067D-M is a versatile, high-reliability 7-channel relay output module designed for RS-485 Modbus networks. It combines robust electrical isolation, flexible configuration, and industrial-grade performance in a compact form factor. With its dual watchdog system, EEPROM configuration storage, and wide operating temperature range, the EX9067D-M ensures dependable operation in mission-critical automation and control applications.
Its 7 Form A relay outputs, LED indicators, and comprehensive Modbus command set make it ideal for controlling discrete devices in distributed I/O systems. The module’s ease of configuration, long service life, and compatibility with standard Modbus RTU/ASCII systems make it a preferred choice for engineers and system integrators seeking reliable digital output solutions for industrial environments.
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