🔵 ALLEN-BRADLEY 1784KT/B Ser B — Communication Module (96058877)
High-Performance Serial Communication Interface for PLC Systems
The Allen-Bradley 1784KT/B Ser B Communication Module is designed to provide reliable serial communication between programmable logic controllers (PLCs) and peripheral devices such as computers, HMIs, and other industrial equipment. Supporting standard protocols like RS-232/RS-422/RS-485, this module enables seamless data exchange and program download/upload operations in industrial automation environments.
With its compact design and robust interface circuitry, the 1784KT/B ensures high-speed, error-free communication even in electrically noisy industrial settings. It is widely used for PLC programming, system diagnostics, and networked control applications where reliability and flexibility are critical.
📑 Technical Parameters (Datasheet-Style Table)
| Parameter | Specification |
|---|---|
| Model | 1784KT/B Communication Module |
| Series | B |
| Catalog Number | 96058877 |
| Interface Type | Serial (RS-232 / RS-422 / RS-485) |
| Communication Protocol | DF1 Full Duplex / Half Duplex |
| Maximum Baud Rate | 115.2 kbps |
| Connector | DB-9 male/female |
| Power Supply | 5 VDC from PLC backplane |
| Current Consumption | 200 mA typical |
| Operating Temperature | 0 °C to +55 °C |
| Storage Temperature | –40 °C to +85 °C |
| Mounting | DIN rail or chassis backplane |
| Indicators | LEDs for transmit/receive and status monitoring |
| Protection | Short-circuit and overvoltage protection |
| Compliance | UL, CE certified for industrial use |
âš™ Functional Features
🟩 Flexible Serial Communication
Supports multiple serial standards (RS-232, RS-422, RS-485) and allows connection to a wide variety of industrial devices including HMIs, PCs, and other PLCs.
🟩 Reliable Data Exchange
Ensures error-free transmission through protocol handshaking and status monitoring, providing consistent system performance in demanding industrial environments.
🟩 Diagnostic Capabilities
Integrated LED indicators provide real-time feedback for communication activity, errors, and module status, assisting with troubleshooting and maintenance.
🟩 Easy Integration
Directly mounts to Allen-Bradley PLC chassis or DIN rail. Fully compatible with RSLogix programming software for upload/download operations and system configuration.
🟩 Industrial-Grade Design
Engineered to withstand vibration, temperature fluctuations, and electrical noise, ensuring dependable operation in factory automation and process control systems.
🛠Installation & Operation Tips
- Mount the module on a compatible PLC backplane or DIN rail.
- Use shielded cables for RS-422/RS-485 connections to minimize EMI interference.
- Confirm proper termination resistors are installed for RS-485 networks.
- Verify communication settings (baud rate, parity, stop bits) match connected devices.
- Monitor LED indicators to ensure correct transmission and reception during operation.
For authorized support, technical consultation, and spare parts:
🔗 https://www.dcsplcsystem.com/
🔗 https://www.dcsplcsystem.com/allen-bradley
📦 Recommended Similar Products
| Model | Description | Function | Application Focus |
|---|---|---|---|
| 1784K/B Communication Module | Earlier version serial interface | PLC-to-PC and peripheral communication | Industrial automation systems |
| 1784-KT/B Series C | Enhanced serial module | High-speed RS-232/RS-485 communication | Modern PLC networks |
| 1784-PCC Communication Module | PC-to-PLC interface | DF1 and Modbus connectivity | Programming and monitoring tasks |
| 1794-ACNR Remote I/O Adapter | Communication adapter | Connects PLC to remote I/O devices | Distributed automation systems |
| 1784-L40C Multi-Protocol Module | Serial interface for multiple protocols | PLC connectivity | Multi-device industrial networking |
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