



The ABB CI531 is a high-performance communication module tailored for ABB Advant Controller series, enabling secure and efficient connectivity across industrial automation networks. Designed for real-time data exchange, the CI531 connects controllers with distributed I/O, field devices, and remote modules. Its compact design, clear status indicators, and rugged industrial performance make it an excellent choice for process automation, machine control, and energy management applications. With CI531, system uptime is maximized, troubleshooting is simplified, and overall operational efficiency is enhanced.
Technical Specifications
| Feature | Specification |
|---|---|
| Model | ABB CI531 |
| Module Type | Communication Module |
| Compatible Series | Advant Controller 400 / 500 Series |
| Communication Ports | 2 × RS‑485 Bus Connections |
| Connector Type | 9-pin D-sub Female |
| Output Voltage | RS-485, GND, 24 V |
| Maximum Output Current | 60 mA |
| Input Impedance | 12 kΩ |
| Supply Voltage | +5 V and +24 V |
| Power Consumption | 3.7 W (+5 V) + 2 × 2.5 W (+24 V) |
| Operating Temperature | −10 °C to +60 °C |
| Status Indicators | Run and Fault LEDs |
| Mounting Type | DIN Rail or Submodule Carrier |
| Dimensions (L×W×H) | 96 mm × 100 mm × 45 mm |
| Weight | 0.18 kg |
Recommended Related Models
-
ABB CI525 – Advanced RS‑485 communication module.
-
ABB CI532 – PROFINET communication interface for larger network setups.
-
ABB CI536 – High-capacity communication module for distributed control systems.
Popular Allen Bradley Models
-
Allen Bradley 1783‑EN2T – Ethernet communication module for distributed I/O.
-
Allen Bradley 1756‑EN4 – EtherNet/IP communication bridge for ControlLogix systems.