Comprehensive Product Summary – ExpertDAQ EX9063A

---

### 1. Product Overview

Product Name: ExpertDAQ EX9063A
Model: EX9063A
Series: EX9000 Series – Digital I/O and Relay Modules
Article Number: EX9063A
Manufacturer: ExpertDAQ (Expert Data Acquisition Systems)

The ExpertDAQ EX9063A is an industrial-grade RS-485 communication module designed for distributed digital input and AC solid-state relay (SSR) output control. It belongs to the EX9000 series of remote I/O modules, which are widely used in automation, process control, and data acquisition systems. The EX9063A provides a combination of 8 isolated digital input channels and 3 AC-SSR relay output channels, offering reliable switching and monitoring capabilities in harsh industrial environments. It supports both ASCII and Modbus RTU communication protocols and can be integrated into RS-485 networks with up to 256 modules.

---

### 2. Key Features

- 8 Isolated Digital Inputs: Each input channel is optically isolated, ensuring high noise immunity and protection against voltage transients.
- 3 AC-SSR Relay Outputs: Solid-state relays rated for 1A at 24–265 VAC, with a leakage current below 1.5 mA, suitable for AC load switching.
- RS-485 Communication Interface: Two-wire half-duplex interface supporting baud rates from 1200 to 115200 bps.
- Modbus RTU Support: Fully compatible with Modbus RTU protocol for easy integration into SCADA and PLC systems.
- Galvanic Isolation: Input and output channels are galvanically isolated from the communication and power circuits, providing up to 3750 Vrms isolation voltage.
- Wide Power Supply Range: Operates from 10 to 30 VDC, allowing flexible deployment in various control cabinets and field installations.
- Extended Temperature Range: Designed for industrial environments with an operating range of –25°C to +75°C.
- Dual Watchdog System: Hardware and software watchdogs ensure continuous operation and automatic recovery from communication or system faults.
- EEPROM Configuration Storage: Retains configuration parameters such as address, baud rate, and protocol settings even after power loss.
- Compact and Rugged Design: Built for DIN-rail or panel mounting, with robust housing suitable for industrial automation systems.
- Manual or Software Configuration: Can be configured via RS-485 commands or using ExpertDAQ configuration software.
- LED Indicators: 11 status LEDs provide real-time feedback for input/output states and communication activity.

---

### 3. Technical Specifications

Communication Interface:
- Type: RS-485, 2-wire half-duplex
- Supported Baud Rates: 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200 bps
- Protocols: ASCII command set and Modbus RTU
- Maximum Modules per Network: 256
- Maximum Cable Length (without repeater): 1200 m

Digital Inputs:
- Channels: 8 isolated input channels with common source
- Input Type: Dry contact, TTL/CMOS compatible
- Input Impedance: 3 kΩ
- Logic Level 0: ≤ +1 VDC
- Logic Level 1: +4 VDC to +30 VDC
- Isolation Voltage: 3750 Vrms

Relay Outputs (AC-SSR):
- Channels: 3 AC solid-state relay outputs (Form A, normally open)
- Load Voltage Range: 24 to 265 VAC
- Maximum Load Current: 1.0 Arms per channel
- Leakage Current: ≤ 1.5 mA
- Minimum Operate Time: 1 ms
- Minimum Release Time: ½ AC cycle + 1 ms
- Dielectric Strength: 2500 Vrms
- Minimum Mechanical Life: 10⁵ operations

Power Supply:
- Input Voltage: +10 to +30 VDC
- Power Consumption: 1.5 W typical

Isolation and Protection:
- Channel-to-channel and channel-to-system isolation: 3750 Vrms
- Surge Strength: 4000 V (relay protection)
- Galvanic isolation between I/O and communication lines

Environmental Conditions:
- Operating Temperature: –25°C to +75°C
- Storage Temperature: –30°C to +75°C
- Humidity: 10–90% RH, non-condensing

Indicators:
- 11 LEDs for digital input/output status and communication activity

Physical Characteristics:
- Mounting: DIN-rail or panel mount
- Enclosure: Industrial-grade plastic housing
- Dimensions: (typical for EX9000 series) approx. 72 mm (W) × 118 mm (H) × 39 mm (D)
- Weight: Approx. 200 g

---

### 4. Functionality

The EX9063A functions as a remote digital I/O module that communicates over an RS-485 network. It allows a host controller (such as a PLC, PC, or HMI) to monitor digital input states and control AC loads through SSR outputs.

Operation Principle:
- The digital input channels detect logic states or contact closures from sensors, switches, or other digital devices.
- The AC-SSR outputs switch AC loads such as lamps, solenoids, or contactors without mechanical wear, providing silent and reliable operation.
- The module exchanges data with the host using ASCII or Modbus RTU commands.
- Configuration parameters (address, baud rate, protocol) are stored in non-volatile memory (EEPROM).
- The dual watchdog system ensures that outputs revert to predefined safe states in case of communication loss or system fault.

Use Cases and Applications:
- Industrial automation and process control
- Building management systems (lighting, HVAC control)
- Remote monitoring and control of AC-powered devices
- Machine status monitoring and alarm signaling
- Distributed I/O expansion for PLCs and SCADA systems
- Energy management and facility automation

Compatibility:
- Compatible with Modbus RTU master devices (PLCs, HMIs, SCADA software)
- Works with ExpertDAQ configuration and monitoring tools
- Can be integrated into mixed RS-485 networks with other EX9000 modules

---

### 5. Components & Accessories

Included Items:
- EX9063A module
- Quick start guide or user manual
- Mounting clips for DIN-rail installation

Optional Accessories:
- RS-485 to USB or RS-485 to Ethernet converters
- RS-485 repeaters for extended cable lengths
- Power supply units (10–30 VDC)
- Terminal blocks and wiring harnesses

Connectors:
- Screw terminal blocks for power, RS-485, and I/O connections
- INIT* switch or pin for configuration reset

---

### 6. Installation & Setup

Requirements:
- Power supply: 10–30 VDC regulated
- RS-485 network connection with proper termination resistors
- Host controller or PC with RS-485 interface

Mounting Options:
- DIN-rail mounting (standard)
- Panel mounting (optional)

Configuration Procedure:
1. Power Off the module before wiring.
2. Connect the RS-485 A/B lines to the network bus.
3. Connect the power supply (10–30 VDC).
4. Wire the digital inputs and AC-SSR outputs according to the wiring diagram.
5. Use the INIT* switch to enter configuration mode if necessary.
6. Configure the module address, baud rate, and protocol using ASCII commands or Modbus registers.
7. Verify communication using the host system or ExpertDAQ software.

Default Settings:
- Module Address: 01
- Baud Rate: 9600 bps
- Data Format: 8N1 (no checksum)
- Protocol: ASCII (Modbus RTU available on EX9063A-M variant)

---

### 7. Performance & Capabilities

Speed and Communication:
- Supports baud rates up to 115.2 kbps for fast data exchange.
- Reliable communication over distances up to 1200 meters without repeaters.

Capacity:
- 8 digital input channels and 3 AC-SSR output channels per module.
- Up to 256 modules can be networked on a single RS-485 bus.

Efficiency and Reliability:
- Solid-state relays provide long operational life and fast switching.
- Low power consumption (1.5 W) minimizes heat generation.
- Dual watchdogs (hardware and host) ensure system stability.

Limitations:
- AC-SSR outputs limited to 1A per channel at 24–265 VAC.
- Leakage current of 1.5 mA may affect very low-power loads.
- Requires proper RS-485 termination and grounding for optimal performance.

---

### 8. Standards & Compliance

Electrical and Safety Standards:
- Isolation Voltage: 3750 Vrms (I/O to system)
- Dielectric Strength: 2500 Vrms (relay outputs)
- Surge Protection: 4000 V (relay circuits)

Communication Standards:
- RS-485 (EIA/TIA-485) compliant
- Modbus RTU protocol compliant

Environmental and Quality Compliance:
- Designed for industrial temperature range (–25°C to +75°C)
- RoHS compliant materials
- CE conformity (typical for ExpertDAQ modules)

Industry Standards Supported:
- Modbus RTU (IEC 61158)
- ASCII command protocol for legacy systems

---

### 9. Additional Information

Watchdog Functions:
- Module Watchdog: Hardware circuit that monitors internal operation and resets the module if a fault occurs.
- Host Watchdog: Software timer that monitors communication with the host; if the timeout expires, outputs revert to predefined safe values.

Safe and Power-On Values:
- Each output channel can be assigned a Power-On Value (state after reset) and a Safe Value (state after communication timeout).
- These values are stored in EEPROM and can be configured via commands.

Maintenance:
- No mechanical contacts in SSR outputs, reducing wear and maintenance needs.
- Periodic inspection of wiring and terminal connections recommended.
- Firmware version can be read via command `$AAF` for update verification.

Firmware and Updates:
- Firmware version example: D03.11 (readable via `$AAF` command).
- Updates available through ExpertDAQ support channels.

Warranty and Support:
- Standard manufacturer warranty (typically 2 years, depending on region).
- Technical support and documentation available from ExpertDAQ.
- Software tools and manuals downloadable from the ExpertDAQ website.

Model Variants:
- EX9063: Mechanical relay outputs (5A @ 250 VAC / 30 VDC)
- EX9063A: AC-SSR outputs (1A @ 24–265 VAC)
- EX9063B: DC-SSR outputs (1A @ 3–30 VDC)
- EX9063M / EX9063A-M / EX9063B-M: Modbus RTU-enabled versions

---

### Summary

The ExpertDAQ EX9063A is a robust, high-performance digital I/O module designed for industrial automation and remote control applications. With 8 optically isolated digital inputs and 3 AC solid-state relay outputs, it provides reliable switching and monitoring capabilities for AC loads. Its RS-485 interface with Modbus RTU support, wide power range, and extended temperature tolerance make it ideal for distributed control systems in demanding environments. The inclusion of dual watchdogs, EEPROM configuration storage, and galvanic isolation ensures operational safety and reliability. Whether used in factory automation, building control, or process monitoring, the EX9063A delivers dependable performance and seamless integration with modern control architectures.