In today's rapidly developing industrial automation, stable signal acquisition and precise command output have become the key to the stable operation of systems. The MA01-AXCX4040-V2P serial IO module, with its excellent industrial-grade design and flexible functional configuration, has become the ideal choice for smart manufacturing, energy monitoring, smart cities and other fields. This RS485 module supporting 4-channel digital input and 4-channel relay output provides a reliable data interaction solution for complex industrial scenarios with Modbus RTU protocol compatibility, three-proof paint protection and wide voltage operating range.

Core Functions: Precise Control and Monitoring for Industrial Scenarios

1. Multi-channel Signal Acquisition and Control
   4-channel Digital Input (DI)
    Supports dry contact signal acquisition with flexible trigger modes (rising edge/falling edge/level trigger), defaulting to rising edge trigger. Filter parameters are adjustable (1-16 levels) to ensure accurate capture of sensor signals in electromagnetic interference environments. The maximum acquisition frequency of 1kHz is suitable for high-frequency signal monitoring scenarios.
   4-channel Relay Output (DO)
   Adopts C-type relay design, each output provides normally open (NO) and normally closed (NC) contacts with a contact capacity of up to 250V/10A, capable of driving high-power equipment. Output modes include level mode, pulse mode, follow mode and cycle mode to meet the start-stop logic requirements of different devices.

2. Industrial-Grade Communication and Protocol Compatibility
   · RS485 Interface
   Uses differential signal transmission with strong anti-interference ability, transmission distance up to 1200 meters (theoretical value), and supports multi-node networking (up to 32 nodes), suitable for distributed control systems.
   · Modbus RTU Protocol
    Fully compatible with mainstream industrial automation software (such as KingView, WinCC) and PLCs (such as Siemens S7-1200, Mitsubishi FX series). The device address can be configured (0-255), with default address 1 and broadcast address 0, facilitating quick integration into existing systems.

3. Intelligent Diagnosis and Maintenance
   · Status Indicators
    Power indicator (green always on) and communication indicator (red flashing, 60ms cycle)直
   · Reset Button
    Short press (50ms-1.5s) for quick module restart, long press (5-10 seconds) to restore factory settings, greatly reducing on-site maintenance difficulty.
   · Communication Interruption, Output (DO) Reset
   The device has a communication self-diagnosis function, which can be configured to reset the output (DO) when communication is interrupted; greatly improving the safety and reliability of on-site use.

Industrial-Grade Design: Reliable Guarantee for Harsh Environments

1. Wide Voltage Operation and Low Power Consumption
   · Wide Voltage Input
   Supports DC 8-28V power supply, compatible with common 24V DC power supplies and 12V vehicle power supplies in industrial sites, with a current of only 50mA@12V and low energy consumption.
   · Power Protection
   Equipped with reverse connection protection and short circuit protection functions to avoid module damage caused by incorrect power connection.

2. Three-Proof Paint Protection: Coping with Harsh Environments
   · Moldproof, Moistureproof and Salt Spray Proof
   The circuit board is coated with three-proof paint, meeting IP65 protection level (when used with a sealed enclosure), suitable for:
   High humidity environments: such as food processing workshops, sewage treatment plants;
   Corrosive environments: chemical plants, coastal areas;
   dusty environments: mines, building materials factories.

3. Compact Design and Flexible Installation
   · Size and Weight
   Dimensions of only 1159040mm and weight of 165±5g, allowing easy embedding into control cabinets or distributed installation.
   · Installation Methods
   Supports rail mounting (standard 35mm DIN rail) and positioning hole fixing, adapting to different cabinet layout requirements.

4. High Protection Isolation
   · Isolation
   Supports isolation of power supply, IO input/output and RS485, suitable for complex environments.

Typical Application Scenarios

1. Smart Manufacturing
   · Production Line Status Monitoring
   Connect photoelectric sensors or proximity switches to monitor equipment start-stop status in real time, and upload data to the SCADA system through Modbus protocol to achieve OEE (Overall Equipment Efficiency) analysis.
   · Safety Interlock Control
   In stamping machinery, collect emergency stop button signals through DI and control cylinder solenoid valves through DO for quick response to ensure operational safety.

2. Energy and Infrastructure
   · Photovoltaic Power Station Monitoring
   Access the DC circuit breaker status signals of the combiner box, remotely monitor the power station operation, and optimize power generation efficiency in combination with inverter data.
   · Building Automation
   Connect temperature and humidity sensors (DI trigger threshold alarm) to control ventilation system relays and adjust indoor environment.

3. Smart Agriculture
   · Irrigation System Control
   Trigger irrigation commands through soil moisture sensors (DI), and control water pump relays through DO to achieve precise irrigation.
   · Greenhouse Environment Regulation
   Link CO2 concentration sensors with fill light/fan control to improve crop growth efficiency.

Product Series Selection

The MA01 series offers various specification combinations to cover different input and output requirements: