IC695PBS301 | GE Fanuc | RX3i PROFIBUS DP Interface Module

Product Description

The IC695PBS301 (often identified as IC695PBS301-AA) is a high-performance PROFIBUS DP Slave communications module designed for the GE Fanuc (Emerson) PACSystems RX3i series. This single-slot module enables an RX3i controller to integrate seamlessly into a PROFIBUS DP network, acting as a high-speed peripheral slave to a PROFIBUS Master. It is engineered for plant-floor automation where deterministic data exchange between disparate control platforms is required.

Utilizing the RX3i PCI bus, the IC695PBS301 provides a robust interface for exchanging up to 244 bytes of input and 244 bytes of output data per scan cycle. It supports the DP-V1 standard, allowing for non-cyclic communication such as extended diagnostics, alarm messaging, and parameter read/write operations. The module is strictly compatible with RX3i Universal Backplanes and requires a CPU with firmware v3.0 or higher to ensure full hardware-to-logic synchronization.

Technical Specifications

• Model Number: IC695PBS301

• Manufacturer: GE Fanuc / Emerson Automation

• Protocol: PROFIBUS DP (Slave Mode)

• Interface: 9-pin sub-D female connector

• Bus Type: RX3i PCI (Universal Backplane required)

• Current Draw: 440 mA @ 3.3 VDC

• Data Throughput: Max 244 bytes input / 244 bytes output

• Baud Rates: 9.6 Kbps to 12 Mbps (Automatic detection)

• DP-V1 Support: Supported (Read/Write/Alarm messages)

• Status Monitoring: Integrated LED indicators for Network and Module health

• Configuration: Via PAC Machine Edition (PME) or hardware switches

• Operating Temperature: -20 °C to +60 °C

• Storage Temperature: -40 °C to +85 °C

• Dimensions: Single-slot RX3i module footprint

• Compliance: IEC 61326-1, PROFIBUS International Standard

Application & Network Role

The IC695PBS301 is typically deployed in distributed control architectures where the RX3i system serves as a subsystem to a larger DCS or PLC master. Common applications include turbine auxiliary monitoring, motor control center (MCC) integration, and process skid control. Its ability to handle high-density I/O maps makes it an ideal solution for bridging PACSystems logic with existing PROFIBUS-based plant networks.

Frequently Asked Questions

Can the IC695PBS301 act as a PROFIBUS Network Master?

No, the IC695PBS301 is a dedicated slave module. For master functionality, the IC695PBM300 module is required.

Does this module work in a legacy 90-30 Series backplane?

No. The IC695PBS301 utilizes the PCI bus specific to the RX3i Universal Backplane (IC695 series). It will not function in 90-30 or RX3i Serial backplanes.