Key Performance Benefits Of The ADAM-4055 Digital I/O Platform
Integrated Digital Input And Output Capability
Combines 8 digital inputs and 8 digital outputs in one compact module.
Reduces control cabinet space and installation costs.
Simplifies wiring and system architecture.
Configurable Dry Contact And Wet Contact Inputs
Input mode can be selected through switch or jumper settings.
Dry contact logic level 0 is open and logic level 1 is closed to ground.
Wet contact logic level 0 is 0 to 3 V maximum or floating.
Wet contact logic level 1 supports 10 to 50 V input signals.
Support For Both NPN And PNP Devices
Compatible with sink (NPN) and source (PNP) field devices.
Simplifies integration into existing automation systems.
Supports a wide variety of industrial sensors and switches.
High Current Open Collector Outputs
Provides 8 digital output channels.
Supports up to 40 V output voltage.
Supports up to 200 mA maximum load per channel.
Supports up to 800 mA total load across all output channels.
Industrial Isolation And Overvoltage Protection
Isolation voltage rated at 2,500 VDC.
Overvoltage protection rated at 70 VDC.
Protects control equipment from electrical disturbances and field side faults.
Reliable Communication For Distributed Control Systems
Supports Modbus RTU communication over RS-485.
Supports ASCII command protocol for legacy integration.
Includes watchdog timer monitoring for communication reliability.
Technical Specifications For ADAM-4055 Isolated Digital I/O Module
| Specification | Details |
|---|---|
| Product Model | ADAM-4055 |
| Module Type | 16 Channel Isolated Digital I/O Module With Modbus |
| Communication Interface | RS-485 |
| Supported Protocols | Modbus RTU, ASCII Command |
| Digital Input Channels | 8 |
| Digital Output Channels | 8 |
| Input Configuration | Dry Contact Or Wet Contact Selectable |
| Dry Contact Logic 0 | Open |
| Dry Contact Logic 1 | Closed To GND |
| Wet Contact Logic 0 | 0 To 3 V Maximum Or Floating |
| Wet Contact Logic 1 | 10 To 50 V |
| Supported Device Types | Sink (NPN) And Source (PNP) |
| Isolation Voltage | 2,500 VDC |
| Overvoltage Protection | 70 VDC |
| Output Type | Open Collector |
| Output Voltage | Up To 40 V |
| Maximum Load Per Channel | 200 mA |
| Maximum Total Load | 800 mA |
| Power Dissipation | 1 W Maximum Per Channel, 2.2 W Total |
| LED Indicators | Yes |
| Power Input | 10 To 30 VDC Unregulated |
| Power Consumption | 1 W Typical, 1.7 W Maximum At 24 VDC |
| Connectors | 2 Plug In Terminal Blocks (#14 To 28 AWG) |
| Watchdog Timer | 1.6 Seconds |
| Operating Temperature | -10°C To 70°C |
| Storage Temperature | -25°C To 85°C |
| Operating Humidity | 5% To 95% RH |
| Ordering Information | ADAM-4055-C |
Ideal Applications For ADAM-4055 Industrial Digital I/O Systems
The ADAM-4055 is an excellent solution for industrial applications requiring both digital monitoring and digital control from a single isolated Modbus I/O module. Its flexibility and protection features make it ideal for demanding automation environments.
Machine automation and equipment control
Process control and status monitoring
Remote I/O expansion for PLC and SCADA systems
Conveyor and material handling systems
Alarm management and notification systems
Pump and motor control applications
Utility and infrastructure automation
OEM machine and equipment integration
Building automation and facility control systems
Distributed industrial control networks using Modbus RTU and RS-485 communications