PLCs, Power Supplies & Others

Product Overview

The ABB DSMB144 57360001-EL functions as a specialized network element output module for ABB distributed control systems. This module interfaces between the control network and field output devices in industrial automation architectures. We engineered the DSMB144 to provide reliable communication and precise output control in Advant system environments.

Technical Specifications

Key Features and Benefits

• Direct Network Connectivity: The DSMB144 57360001-EL connects directly to ABB control networks without additional interface modules. You simplify system architecture and reduce component count in distributed installations.

• Dual-Protocol Support: This module communicates via MasterBus 300 or MODBUS RTU protocols. Consequently, you integrate it with both legacy ABB systems and modern MODBUS-based networks seamlessly.

• High-Voltage Output Capability: Each solid-state relay switches loads up to 230 VAC or 125 VDC. Therefore, you directly control contactors, solenoids, and indicators without interposing relays.

• Complete Channel Isolation: Every output channel isolates electrically from others and from the network. This design prevents single-point failures from affecting multiple circuits or communication.

• Visual Status Monitoring: Front-panel LEDs show network activity and individual output states. You quickly verify operation and troubleshoot issues without additional tools.

Detailed Functional Description

The primary function of the ABB DSMB144 57360001-EL involves receiving commands from the control network and activating output devices accordingly. Specifically, it listens for messages addressed to it on the MasterBus 300 or MODBUS network. When it receives a command, the module updates its output registers and energizes the corresponding solid-state relays. The module reports back status information including output states, fault conditions, and diagnostic data. Furthermore, it buffers output commands during network interruptions, maintaining last valid states until communication restores.

Network Interface and Performance

We designed the DSMB144 with a versatile network interface for various system configurations:

The module automatically detects network baud rate and protocol when configured for auto-negotiation mode. Built-in switchable termination ensures proper signal quality at network endpoints.

Output Characteristics and Protection

The output section of the ABB DSMB144 57360001-EL provides robust switching capability:

• Output Type: Optically-isolated solid-state relays with zero-crossing switching (AC) or DC switching

• Contact Rating: 2 A continuous, 10 A inrush for 100 ms

• Load Types: Resistive, inductive (with external snubbers), lamp, and motor loads up to 1/4 HP

• Protection: Overcurrent shutdown with automatic retry, snubber circuits for inductive loads

• Status Feedback: Output state feedback for verification and diagnostic purposes

Installation and Configuration

Engineers install the DSMB144 in any I/O slot within an Advant controller rack. The process involves:

1. Inserting the module into the rack and securing with locking screws

2. Connecting the network cable to the 9-pin D-sub connector

3. Wiring field output devices to the removable terminal blocks

4. Setting protocol and address via rotary switches or software

5. Configuring network parameters and output mapping in the controller

The module stores configuration in non-volatile memory, retaining settings through power cycles.

Mechanical Details

The ABB DSMB144 57360001-EL features a rugged Eurocard format with double-width front panel. Its design includes:

• Front-panel network status and channel LEDs

• Removable terminal blocks for output wiring

• 9-pin D-sub network connector with locking screws

• Protocol and address switches behind sealed cover

• Metal ejector handles for easy insertion/removal

The module includes shielding for electromagnetic compatibility in industrial environments.

Compatibility Information

The DSMB144 57360001-EL integrates with the following ABB systems:

• Advant Controller 410 and 450 series

• MOD 300 systems via network bridge

• Industrial IT 800xA with fieldbus adapters

• Third-party MODBUS masters supporting RTU mode

Common Industrial Applications

The ABB DSMB144 57360001-EL provides network-controlled output capability for various applications:

Why Choose This Module?

Selecting the ABB DSMB144 57360001-EL means choosing a dedicated network output solution for your ABB distributed control system. You control remote devices directly over the plant network without complex wiring runs back to central I/O. The dual-protocol support ensures compatibility with both existing ABB infrastructure and standard MODBUS networks. High-voltage solid-state outputs drive industrial loads directly, eliminating interposing relays and saving panel space. Complete isolation protects the network from field faults, maintaining system integrity. For Advant systems requiring network-distributed output capability, the DSMB144 57360001-EL delivers reliable, integrated performance.

Details