ADAM-6256-B 16-Channel Isolated Digital Output Module
The ADAM-6256-B is a professional-grade 16-channel isolated digital output Ethernet remote I/O module designed for industrial automation, process control, and IoT applications. This remote I/O module delivers reliable signal isolation and multi-protocol support, making it ideal for manufacturing facilities, HVAC systems, building automation, and distributed control environments where robust digital switching is critical.
Built on the proven ADAM-6000 series platform, the ADAM-6256-B combines industrial-strength isolation with modern connectivity. Whether you're managing relay switching, solenoid control, or equipment activation across networked facilities, this Modbus TCP-enabled module provides the dependability and flexibility your automation infrastructure demands.
Key Features
- 16 isolated digital output channels with 2kV optical isolation per channel
- Modbus TCP/IP protocol support for seamless industrial network integration
- SNMP and MQTT protocol compatibility for IoT and cloud connectivity
- Pulse output functionality for precise timing and frequency control
- Wide operating temperature range (-10°C to 60°C) for harsh industrial environments
- DIN-rail mountable design for standard industrial cabinet installation
- Built-in Ethernet connectivity with automatic IP configuration options
- LED status indicators for real-time channel and network diagnostics
- Redundant power supply support for mission-critical applications
- Compact form factor with screw-terminal wiring for easy field installation
Technical Specifications
| Specification |
Details |
| Manufacturer |
B+B SMARTWORX |
| Part Number |
ADAM-6256-B |
| Product Series |
ADAM-6000 Remote I/O Module |
| Output Channels |
16 isolated digital outputs |
| Isolation Level |
2kV optical isolation per channel |
| Protocols Supported |
Modbus TCP, SNMP, MQTT |
| Output Type |
Relay or transistor (configurable) |
| Pulse Output |
Yes, programmable frequency and duty cycle |
| Connectivity |
Ethernet RJ-45 (10/100 Mbps) |
| Operating Temperature |
-10°C to 60°C |
| Storage Temperature |
-20°C to 70°C |
| Power Supply |
24 VDC (±10%) |
| Mounting |
DIN-rail (35mm) |
| Dimensions |
Compact industrial form factor |
Frequently Asked Questions
What is a remote I/O module and how does the ADAM-6256-B work?
A remote I/O module extends digital control capabilities across networked locations without running individual wires. The ADAM-6256-B connects via Ethernet and provides 16 isolated digital outputs that can be controlled remotely using Modbus TCP, SNMP, or MQTT protocols. Each output is optically isolated (2kV) to protect your control system from electrical noise and surges common in industrial environments.
What are the advantages of isolated digital outputs?
Isolation protects your control system and connected devices from ground loops, voltage spikes, and electromagnetic interference. The 2kV optical isolation in each channel of the ADAM-6256-B ensures that faults or surges on one output line cannot propagate to your main control network, improving system reliability and safety in harsh industrial settings.
Can the ADAM-6256-B support pulse output for timing-sensitive applications?
Yes. The ADAM-6256-B includes programmable pulse output functionality, allowing you to generate precise frequency and duty-cycle signals for stepper motors, solenoid valves, and other timing-critical devices. This makes it suitable for motion control, flow regulation, and synchronized equipment activation in automation workflows.
Which protocols does the ADAM-6256-B support for industrial automation?
The module supports Modbus TCP for traditional industrial networks, SNMP for network management and monitoring, and MQTT for modern IoT and cloud-based applications. This multi-protocol approach ensures compatibility with legacy systems and emerging Industry 4.0 platforms, giving you flexibility in system architecture and future-proofing your investment.
