Technical Specifications
| Parameter Name | Parameter Value |
|---|---|
| Product Model | 1761-NET-AIC (AIC+) |
| Manufacturer | Rockwell Automation (Allen‑Bradley) |
| Product Type | Advanced Interface Converter (Serial Protocol Converter) |
| Power Supply | 20.4 – 28.8V DC (24V DC typical) |
| Current Consumption | 120 mA typical (200 mA max inrush) |
| Isolation | 500V DC (Optically isolated between ports) |
| RS‑232 Ports | 2 ports (1× Mini‑DIN, 1× 8‑pin Mini‑DIN) |
| RS‑485 Port | 1× Screw terminal (DH‑485 / DF1 multi‑drop) |
| Supported Protocols | DH‑485, DF1 Full‑Duplex, DF1 Half‑Duplex (Master/Slave) |
| Baud Rate | 1,200 – 19,200 bps |
| Max Network Nodes | 32 nodes per segment (DH‑485); up to 255 (DF1 general) |
| Max Cable Length | 1,219 m (4,000 ft) per segment |
| Operating Temperature | 0 °C to 60 °C |
| Mounting | DIN rail or panel mount |
Main Features and Advantages
Legacy Network Integration: The 1761-NET-AIC is specifically designed to connect RS‑232 devices (PCs, PanelView terminals, MicroLogix 1000) to DH‑485 or DF1 networks. It effectively replaces older bulky setups like the 1747‑AIC/1747‑PIC combination, simplifying cabinet layout while maintaining compatibility with SLC 5/03, SLC 5/04, and MicroLogix controllers.Robust Electrical Isolation: Featuring 500V optical isolation between its ports, the module protects sensitive RS‑232 equipment from ground loops, noise, and voltage surges commonly found on long‑distance RS‑485 runs in industrial environments. This isolation significantly improves communication reliability in electrically noisy plants.Flexible Configuration Modes: The converter supports multiple operating modes including Point‑to‑Point Isolator (for direct PC‑to‑PLC connections), DF1 Modem mode (for remote diagnostics), and multi‑drop network repeater. Its front‑panel LEDs provide clear diagnostics for power, transmit (Tx), and receive (Rx) status, speeding up troubleshooting.
Application Field
The 1761-NET-AIC is primarily used in legacy automation systems where modern Ethernet/IP networks are not available or feasible. It is commonly deployed in older manufacturing cells, material handling systems, and building automation networks that still rely on DH‑485 or DF1 protocol. Typical scenarios include connecting a programming laptop to a multi‑drop network of SLC 5/03 processors, or linking a PanelView 550 HMI to a MicroLogix 1000 controller over DH‑485.
Related Products
- MicroLogix 1000 (1761‑L16xxx series): A common controller paired with the AIC+ for DH‑485 networking.
- SLC 5/03 & SLC 5/04: Processors that use the AIC+ to replace the Channel 0 serial port interface for network access.
- 1747‑AIC: The older generation isolator that the AIC+ often replaces.
- 1761‑CBL‑xx cables: Specific programming/communication cables (e.g., 1761‑CBL‑PM02, 1761‑CBL‑HM02) required to connect to the Mini‑DIN ports.
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