Phoenix IBS Series Industrial Bus & I/O Modules Selection Guide

Opening: Heterogeneous Network Communication & Distributed I/O Control Solutions for Industrial Automation

The Phoenix IBS series is a comprehensive portfolio of industrial bus couplers, I/O terminals, current monitoring modules, and protocol chips, designed for seamless data exchange between heterogeneous industrial networks (PROFIBUS/INTERBUS/VME) and distributed I/O control. These components support 24V DC control systems, precise current monitoring (0.2A–5A), and integrated OPC/fiber communication, complying with industrial automation standards and ensuring stable operation in harsh factory environments. Widely used in production line control, equipment energy monitoring, and remote I/O networking, they bridge the gap between legacy and modern industrial control systems.

I. Core Advantages of the IBS Series

1. Multi-bus compatibility: Supports PROFIBUS, INTERBUS, and VME bus systems, enabling data interconnection between heterogeneous networks (e.g., PROFIBUS controllers and INTERBUS I/O modules).
2. Distributed I/O flexibility: The ST/STME series I/O terminals offer configurable digital I/O (8-in/8-out/3-control) and optional fiber (LK) or remote branch (RB) functions, adapting to centralized/decentralized control scenarios.
3. Precise current monitoring: The TR5 series current transformers cover 0.2A–5A measurement ranges with high accuracy (0.1–0.5 grade), realizing overload protection and energy monitoring for industrial circuits.
4. Protocol chip integration: The SUPI series INTERBUS slave protocol chips (TQFP/QFP package) enable embedded devices to access industrial buses, reducing custom development costs.
5. Industrial-grade durability: IP20 cabinet protection, -40°C to +85°C operating temperature, and electrical isolation design, suitable for high-interference factory floor and remote control scenarios.

II. Product Classification & Detailed Parameter Table

1. IBS-PB Series (PROFIBUS-INTERBUS Couplers)

Dedicated to data exchange between PROFIBUS and INTERBUS networks, with optional OPC and fiber communication for remote monitoring.

2. IBS VME/USC/UNI DIO Series (Bus Interface & I/O Expansion)

Covers VME bus connection, INTERBUS master control, and general I/O expansion for specialized control system integration.

3. IBS TR5 Series (Precision Current Monitoring Modules)

Industrial-grade current transformers for circuit overload protection and energy monitoring, with measurement ranges from 0.2A to 5A.

4. IBS SUPI Series (INTERBUS Slave Protocol Chips)

Embedded protocol chips for integrating devices into INTERBUS networks, with multiple packages and optional OPC functionality.

5. IBS ST/STME/STTB Series (INTERBUS I/O Terminals)

Distributed INTERBUS I/O terminals with configurable digital I/O, optional fiber/remote branch functions, for field device connection.

III. IBS Series Nomenclature Decoding

IBS-[Sub-series]-[Voltage/Specification]-[Function Suffix]

• IBS: Product series identifier (Industrial Bus System, for industrial network and I/O control).
• Sub-series:
  • PB = PROFIBUS-INTERBUS bus coupler;
  • VME = VME bus interface module;
  • USC = INTERBUS master control board;
  • TR5 = Current transformer module;
  • SUPI = INTERBUS slave protocol chip;
  • ST/STME/STTB = INTERBUS I/O terminal (STTB=terminal block, STME=electronic module, ST=integrated terminal).
• Voltage/Specification:
  • 24 = 24V DC (industrial automation standard voltage);
  • CT = Coupling terminal;
  • TR5 [X]AT/AF = Current range (X=0.2/0.4/1/3.15/4/5, AT=standard measurement, AF=fast-response protection);
  • DIO8/8/3 = 8 digital inputs + 8 digital outputs + 3 control signals.
• Function Suffix:
  • T = Standard terminal type;
  • LK = Fiber communication interface (long-distance/anti-interference);
  • OPC = OPC server function (remote data acquisition);
  • RB = Remote bus branch (distributed I/O expansion);
  • WT = Surge protection (harsh environment adaptation);
  • BKM = Mechanical coding (anti-misconnection);
  • RB = Remote branch (distributed network).

IV. 3-Step Quick Selection Technique

Step 1: Select Product Type Based on System Architecture

• Heterogeneous network communication: Choose IBS-PB series (2742751/2862796) for PROFIBUS-INTERBUS data exchange; add LK/OPC for remote monitoring.
• Current monitoring/energy management: Pick IBS TR5 series; select 0.2–1A for precision circuits, 3.15–5A for industrial equipment main circuits.
• Distributed I/O control: Opt for IBS ST/STME series; use STTB for terminal wiring, STME for signal processing, and integrated ST for plug-and-play scenarios.
• Embedded device bus access: Select IBS SUPI series; QFP for legacy 5V systems, TQFP for 3.3V embedded devices.

Step 2: Match Voltage & I/O Specifications to Field Requirements

• 24V DC control systems: All IBS-PB/ST/STME models are compatible (standard industrial voltage).
• I/O channel needs: For 8-in/8-out/3-control scenarios, select ST/STME models with DIO8/8/3 suffix (e.g., 2752411).
• Current measurement range: Confirm circuit current, e.g., 0.2A for IoT modules (2753452), 5A for actuator circuits (2767383).

Step 3: Add Special Functions for Environmental/Functional Needs

• Long-distance/anti-interference: Add LK (fiber) suffix (e.g., 2754448) for cross-workshop transmission.
• Remote cloud monitoring: Select OPC suffix (e.g., 2728665) for OPC UA data integration.
• Harsh outdoor environments: Choose WT (surge protection) (2752437) to resist voltage spikes.
• Distributed expansion: Add RB (remote branch) (2753504) for factory-wide I/O network extension.

V. Recommended Industry-Scenario Combinations

VI. Selection Pitfall Avoidance Guide

1. Bus mismatch: VME systems using PROFIBUS couplers → Select IBS VME series (2722852) for VME-INTERBUS interconnection to avoid protocol incompatibility.
2. Current range error: 0.2A precision circuits using 5A TR5 modules → Choose 0.2AT/0.4AT models (2753452/2753478) to ensure measurement accuracy and prevent false alarms.
3. Special function neglect: Outdoor I/O using non-WT models → Add WT surge protection (2752437) to resist lightning/voltage spikes and extend module life.
4. I/O channel insufficiency: 8-in/8-out control using 4-in/4-out terminals → Select DIO8/8/3 suffix models (2752411) to avoid circuit multiplexing and signal interference.
5. Protocol chip package error: 3.3V embedded devices using 5V QFP SUPI chips → Pick TQFP-packaged SUPI 4 (2988117) for low-voltage compatibility and prevent chip burnout.

Conclusion: Select the Right IBS Component for Industrial Bus & I/O Control

The Phoenix IBS series provides targeted solutions for heterogeneous network communication, distributed I/O control, and current monitoring, covering legacy system upgrade, smart factory IoT integration, and precision equipment protection.