GE IC695PBM300-D

Product Overview

The GE Fanuc IC695PBM300-DC is a PACSystems RX3i PROFIBUS-DP Master Module designed to connect an RX3i controller with PROFIBUS field devices and distributed I/O. It enables the RX3i CPU to exchange process data with PROFIBUS-DP slave devices and supports both standard cyclic communication and selected DP-V1 functions.

The -DC suffix identifies a specific revision of the IC695PBM300 product family. When replacing an existing module, the complete catalog number and revision should be checked carefully rather than relying only on the PBM300 designation.

Technical Specifications

Parameter	Details
Manufacturer	GE Fanuc / GE Intelligent Platforms
Model	IC695PBM300-DC
Product Family	PACSystems RX3i
Module Type	PROFIBUS-DP Master
Network Protocol	PROFIBUS-DP / DP-V1
Maximum Slaves	Up to 125 PROFIBUS-DP slaves
Maximum Input Data	3,584 bytes
Maximum Output Data	3,584 bytes
Data per Slave	Up to 244 input and 244 output bytes
Supported Baud Rates	9.6 kbit/s to 12 Mbit/s
Backplane	RX3i Universal Backplane
Backplane Consumption	Approx. 440 mA at 3.3 VDC
Network Connector	9-pin D-sub
Operating Temperature	0°C to 60°C
Storage Temperature	-40°C to 85°C
Communication Functions	Sync, Freeze, DP-V1 Read, Write and Alarm

The documented IC695PBM300 specifications support all standard PROFIBUS data rates from 9.6 kbit/s through 12 Mbit/s and provide diagnostic information including slave status and network counters.

Main Features

The module is designed for demanding industrial communication requirements and provides:

• PROFIBUS-DP master functionality
• Support for up to 125 DP slave devices
• Up to 3,584 bytes of input and output data
• Support for Sync and Freeze operating modes
• DP-V1 Read, Write, and Alarm messaging
• PROFIBUS-compliant diagnostic LEDs
• Network diagnostic counters
• DP master diagnostic information
• Firmware revision and slave diagnostic information

These functions make the PBM300 suitable for integrating distributed field devices into an RX3i-based control architecture.

Hardware and Network Interface

The IC695PBM300 is installed in an RX3i Universal Backplane and communicates with the controller through the RX3i backplane. The field network is connected through a standard female 9-pin D-sub PROFIBUS connector. The module itself does not provide built-in PROFIBUS termination, so appropriate external bus termination must be used where required.

Three status indicators provide useful information during commissioning and troubleshooting. The OK, Network, and Module Status LEDs can indicate power, network activity, configuration status, and communication problems.

Application Areas

The GE Fanuc IC695PBM300-DC can be applied in systems requiring PROFIBUS connectivity between an RX3i controller and distributed automation equipment, including:

• Factory automation
• Process control
• Distributed I/O systems
• Motor and drive communication
• Manufacturing machinery
• Packaging systems
• Material-handling equipment
• Industrial production lines
• Legacy PROFIBUS-based control networks

It is especially useful when an existing RX3i installation needs to communicate with established PROFIBUS field devices without redesigning the entire control architecture.

Installation and Maintenance

Before installation, verify that the RX3i rack is compatible with the PROFIBUS master module and that the controller firmware and programming software meet the required versions. The documented module requires an RX3i Universal Backplane and a compatible RX3i CPU.

During network installation, use suitable PROFIBUS cable, correct shielding and grounding practices, and appropriate termination. The module uses a standard DB9 interface, but the +5 V pin should not be used as a power source; it is intended for termination purposes.

For maintenance, monitor the module LEDs and network diagnostics when communication faults occur. Check the PROFIBUS cable, connectors, termination, slave station addresses, configuration data, and controller-side settings before replacing the module.

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