Introduction
The Allen-Bradley 2080-SERIALISOL Micro800 Isolated Serial Port Plug-In Module is designed to provide additional serial communication capability for compatible Micro800 programmable controllers. As part of the Micro800 plug-in module family, it allows users to expand controller communication without significantly increasing the overall control-system footprint.
The module provides RS-232 and RS-485 communication interfaces and is electrically isolated. This isolation is particularly valuable in industrial environments where controllers communicate with equipment such as variable frequency drives, servo drives, meters, instrumentation, and other field devices that can introduce electrical interference.
Serial communication remains widely used in industrial automation because of its simplicity and compatibility with a large installed base of field equipment. The 2080-SERIALISOL provides a convenient way to integrate these devices with Micro800 controllers.
For Modbus RTU applications, the RS-485 interface can be used to connect the Micro800 controller with compatible Modbus devices. Depending on the network design, multiple devices can be connected to an RS-485 network, allowing the controller to exchange process or diagnostic data with drives, instruments, and other automation equipment.
The module also supports ASCII communication, providing flexibility when integrating equipment that uses character-based serial communication. RS-232-based CIP Serial communication is another supported function for appropriate applications.
A major advantage of the 2080-SERIALISOL is its electrical isolation. Industrial automation systems frequently contain motors, drives, contactors, switching power supplies, and other equipment that can produce electrical noise. Isolation can help protect communication reliability by reducing the effects of unwanted electrical potential differences between connected equipment.
For long RS-485 communication runs, the module can support distances of up to 1000 m, provided that the network uses suitable cable, termination, wiring practices, and communication settings. Shielded twisted-pair cable and appropriate termination are important when designing longer RS-485 networks.
The compact plug-in construction allows the module to be installed directly into compatible Micro800 controllers. This approach can help machine builders add communication functionality without installing a separate communication cabinet or external serial gateway.
The -20°C to 65°C operating temperature range also makes the module suitable for a broad range of industrial control environments.
When installing the 2080-SERIALISOL, engineers should verify controller compatibility, communication protocol, RS-232 or RS-485 wiring, baud rate, network termination, grounding, and software configuration before commissioning the system.
Technical Specifications
| Parameter | Specification |
|---|---|
| Brand | Allen-Bradley |
| Manufacturer | Rockwell Automation |
| Model | 2080-SERIALISOL |
| Product Family | Micro800 |
| Product Type | Isolated Serial Port Plug-In Module |
| Module Type | Communication Plug-In |
| Communication Interface | RS-232 / RS-485 |
| Electrical Isolation | Yes |
| Isolation Voltage | 500 V AC |
| Supported Protocols | Modbus RTU, ASCII |
| CIP Serial | Supported through RS-232 |
| RS-485 Maximum Cable Length | Up to 1000 m (3280 ft) |
| Transmission Rate | 19.2 kbps |
| Data Transmission Type | Serial |
| Wire Size | 0.14–1.5 mm² solid / 0.14–1.0 mm² stranded |
| Solid Wire Range | 26–16 AWG |
| Stranded Wire Range | 22–18 AWG |
| Maximum Insulation Temperature | 90°C |
| Terminal Screw Torque | 0.22–0.25 Nm |
| Operating Temperature | -20 to 65°C (-4 to 149°F) |
| Mounting Type | Micro800 Plug-In |
| Safety Function | Not suitable for safety functions |
| Dimensions | 73 × 22 × 57 mm |
| Weight | 0.02 kg (0.04 lb) |
| Application | Industrial Serial Communication |
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