Comprehensive Product Summary – ExpertDAQ EX9063D‑M Relay and Digital Input Module

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### 1. Product Overview

- Product Name: ExpertDAQ EX9063D‑M
- Model: EX9063D‑M
- Series: EX9000 Series Digital I/O Modules
- Article Number: EX9063D‑M
- Manufacturer: ExpertDAQ / TOPSCCC Co., Ltd. (Taiwan)

The EX9063D‑M is a rugged, isolated digital I/O module designed for industrial automation and remote control applications. It integrates 8 isolated digital input channels and 3 Form‑A relay output channels, communicating via RS‑485 using the Modbus RTU protocol. The module is part of the ExpertDAQ EX9000 family, known for modular, distributed I/O systems supporting both serial and Ethernet communication standards.

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### 2. Key Features

- Communication Interface: RS‑485, 2‑wire half‑duplex bus
- Protocol: Modbus RTU (default) or ASCII command mode
- Digital Inputs: 8 optically isolated channels with 3750 Vrms isolation
- Relay Outputs: 3 Form‑A mechanical relays rated 5 A @ 250 VAC or 30 VDC
- Galvanic Isolation: Complete isolation between input, output, and communication circuits
- LED Indicators: 11 LEDs for channel and power status visualization
- Wide Power Range: Operates from 10 VDC – 30 VDC supply
- Extended Temperature Range: −25 °C to +75 °C operating, −30 °C to +75 °C storage
- Dual Watchdog System: Hardware and software watchdogs ensure fail‑safe operation
- Configurable via Software: Baud rate, address, and protocol selectable through Modbus or ASCII commands
- DIN‑Rail Mountable: Compact industrial housing suitable for control cabinets
- Long Relay Life: Minimum 10⁵ mechanical operations per channel
- Network Scalability: Up to 256 modules per RS‑485 network, 1200 m cable length without repeater

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### 3. Technical Specifications

| Parameter | Specification |
|----------------|------------------|
| Communication Interface | RS‑485, 2‑wire |
| Supported Baud Rates | 1200, 2400, 4800, 9600, 19.2 k, 38.4 k, 57.6 k, 115.2 k bps |
| Protocol | Modbus RTU (default), ASCII command set |
| Digital Inputs | 8 isolated channels, common source |
| Input Impedance | 3 kΩ |
| Logic Level 0 | ≤ +1 VDC |
| Logic Level 1 | +4 V – +30 VDC |
| Isolation Voltage (DI) | 3750 Vrms |
| Relay Outputs | 3 × Form A (normally open) |
| Contact Rating | 5 A @ 250 VAC / 5 A @ 30 VDC |
| Surge Strength | 4000 V |
| Operate Time | ≤ 6 ms |
| Release Time | ≤ 3 ms |
| Minimum Life | 10⁵ operations |
| Power Supply | +10 VDC – +30 VDC (unregulated) |
| Power Consumption | 1.5 W typical |
| Isolation (I/O to Logic) | 3000 VDC minimum |
| Operating Temperature | −25 °C to +75 °C |
| Storage Temperature | −30 °C to +75 °C |
| Humidity | 5 – 95 % RH, non‑condensing |
| Indicators | 11 × LEDs (8 DI, 3 Relay) |
| Mounting | DIN‑rail or wall mount |
| Enclosure | Industrial ABS housing |

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### 4. Functionality

The EX9063D‑M serves as a remote digital I/O expansion module for PLCs, SCADA systems, or PC‑based controllers. It converts field‑level discrete signals into Modbus‑accessible registers over RS‑485.

Operation Principle:
- Each digital input is optically isolated and can detect TTL/CMOS, dry contact, or open‑collector signals.
- Relay outputs are controlled via Modbus coil commands or ASCII instructions.
- The module’s microcontroller manages communication, watchdogs, and EEPROM‑stored configuration.

Typical Applications:
- Industrial process control and monitoring
- Building automation and HVAC systems
- Machine status and alarm monitoring
- Remote relay switching and signal acquisition
- Integration with Modbus RTU master devices (PLC, HMI, DCS)

Compatibility:
- Fully compliant with Modbus RTU master devices
- Compatible with ExpertDAQ configuration utilities and third‑party SCADA software supporting Modbus RTU

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### 5. Components & Accessories

Included:
- EX9063D‑M module
- Removable terminal block connectors
- Quick‑start guide and configuration software

Optional Accessories:
- RS‑485 to USB or RS‑485 to Ethernet converters
- DIN‑rail mounting clips
- RS‑485 repeaters for extended networks

Connectors:
- Screw‑type terminal blocks for I/O and power
- RS‑485 communication terminals (DATA+, DATA−, GND)

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### 6. Installation & Setup

Power Requirements:
10 – 30 VDC regulated or unregulated supply, ripple < 200 mV p‑p.

Mounting Options:
DIN‑rail or wall‑mount installation in control panels.

Wiring Guidelines:
- Use twisted‑pair shielded cable for RS‑485.
- Maintain proper grounding and avoid routing near high‑voltage lines.
- Maximum RS‑485 bus length: 1200 m without repeater.

Configuration:
- Default Modbus address: 01
- Default baud rate: 9600 bps, 8 N 1
- Configuration via software or ASCII commands (`%AANNTTCCFF`)
- INIT* mode switch allows resetting to factory defaults or changing baud rate/protocol.

INIT* Mode Activation:
1. Power off the module.
2. Slide INIT* switch to “Init” or short INIT* pin to GND.
3. Power on; module enters configuration mode (Address = 00, Baud = 9600).
4. After configuration, return switch to “Normal” and reboot.

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### 7. Performance & Capabilities

- Relay Switching: 5 A @ 250 VAC / 30 VDC per channel
- Response Time: Operate ≤ 6 ms, Release ≤ 3 ms
- Input Sampling: Supports latch and counter functions
- Counter Range: 0 – 65 535 counts (16‑bit) per input channel
- Communication Speed: Up to 115.2 kbps
- Network Capacity: 256 modules per RS‑485 segment
- Watchdog System:
- *Module Watchdog* (hardware) ensures continuous operation under noise.
- *Host Watchdog* (software) monitors communication; on timeout, outputs revert to predefined Safe Value.
- EEPROM Storage: Retains configuration (address, baud rate, protocol, power‑on/safe values).
- Reliability: Designed for 24/7 industrial operation with long relay endurance and robust isolation.

Limitations:
- Relay outputs are mechanical; not suited for high‑frequency switching.
- Total current limited by contact ratings; external protection recommended for inductive loads.

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### 8. Standards & Compliance

- Communication Standard: Modbus RTU over RS‑485
- Isolation: 3750 Vrms optical isolation (inputs), 3000 VDC channel‑to‑logic
- Surge Protection: 4000 V transient suppression on relay contacts
- EMC/EMI: Designed for industrial environments with noise immunity
- Safety: Meets industrial low‑voltage and insulation requirements
- Environmental: RoHS‑compliant materials, wide‑temperature operation

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### 9. Additional Information

Warranty:
Standard manufacturer warranty (typically 2 years) covering defects in materials and workmanship.

Support & Maintenance:
- Configuration utilities and manuals downloadable from [www.topsccc.com.tw](http://www.topsccc.com.tw)
- Firmware updates available via RS‑485 interface
- Technical support provided by ExpertDAQ distributors

Maintenance Recommendations:
- Periodically inspect terminal connections and relay contacts.
- Avoid exposure to corrosive gases or excessive vibration.
- Maintain ambient temperature within specified range.

Firmware & Software Tools:
- Supports ExpertDAQ configuration utility for Windows
- Compatible with Modbus diagnostic tools and SCADA packages
- EEPROM retains user settings after power loss

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### Summary

The ExpertDAQ EX9063D‑M is a compact, high‑reliability RS‑485 Modbus RTU digital I/O module combining 8 isolated digital inputs and 3 Form‑A relay outputs. It provides robust isolation, flexible configuration, and industrial‑grade performance for distributed control systems. With its dual watchdog protection, wide power range, and extended temperature tolerance, the EX9063D‑M is ideal for demanding automation, monitoring, and remote control applications requiring dependable Modbus‑based digital interfacing.