Description
1. Product Overview
Model No.：IC695PBM300-BC
This is a factory-original PROFIBUS DP Master communication module exclusively designed for PACSystems RX3i series, manufactured by Emerson Automation (formerly GE Fanuc Intelligent Platforms).BC denotes the finalized hardware revision. Its underlying firmware, bus protocol and port parameters are fully locked and solidified with no cross-model universal substitutes.Spare parts of the same model support direct plug-and-play replacement on the rack without PLC program modification, system reconfiguration, network topology adjustment or field wiring alteration. It serves as a core communication spare part for frequent maintenance in automatic production lines, power auxiliary control and chemical process DCS systems.Brand：EMERSON Automation (Formerly GE Fanuc General Electric)
System Compatibility
It is exclusively compatible with PACSystems RX3i series PLC main control systems and installed onto the RX3i backplane bus architecture. Acting as the dedicated master core unit of PROFIBUS DP network, it is responsible for bus networking, slave polling, data interaction and network diagnosis.It can connect various DP slave devices including inverters, remote I/O units, instruments, sensors and actuators. Widely applied in thermal power auxiliary control, chemical processes, metallurgical production lines and water treatment automation systems.
Core Product Definition
An industrial-grade PROFIBUS DP master communication processing module. As the key communication hub between RX3i PLC system and field DP bus devices, it independently completes DP network networking, slave device polling, cyclic data exchange, network condition monitoring and fault diagnosis.Compliant with standard PROFIBUS DP protocol, it connects a large number of field slave equipment to realize high-speed data exchange between PLC main controller and field instruments, drive equipment as well as remote I/O modules. It functions as the core networking and data transmission unit of industrial DP bus control systems.
2. Six Core Hardware Functional Units
1. PROFIBUS DP Master Protocol Parsing Unit
Equipped with a dedicated hardware protocol chip for DP master station, it natively supports PROFIBUS DP-V0 / DP-V1 standard protocols and adaptive communication over all baud rates to automatically match on-site network transmission speeds.Bus frame parsing, data packaging and polling scheduling are accomplished on hardware level without occupying PLC CPU computing resources. It independently implements cyclic bus communication and acyclic parameter read-write, ensuring stable, low-latency and lossless transmission on the DP network.
2. Large-Capacity Bus Networking Driving Unit
A single module supports up to 125 DP slave devices. Each slave allows 244 bytes of input data and 244 bytes of output data. The overall maximum throughput reaches 3584 bytes for input and 3584 bytes for output, meeting the demand for centralized networking of multiple devices and massive signal points on large-scale automatic production lines.It features broad compatibility with various DP slave types, including variable-frequency drives, analog modules, digital I/O modules, smart instruments and valve group controllers.
3. Full-Range Network Fault Diagnosis Unit
Integrated with comprehensive diagnosis functions for DP bus, it real-time monitors network disconnection, slave offline, address conflict, baud rate mismatch, frame error and bus interference anomalies.Built-in slave status array, network diagnosis counter and DP master fault statistics mechanism accurately locate faulty stations, fault types and abnormal frequency. Onboard LED indicators provide local alarm while fault information is uploaded to upper configuration software, greatly shortening troubleshooting time for bus faults.
4. RX3i Backplane Bus Interaction Unit
Specially adapted to high-speed RX3i backplane bus with hardware point-to-point addressing and isolated communication links. Multiple modules mounted on one rack will not cause data conflict.It enables high-speed bidirectional data forwarding between PLC CPU and DP bus to form closed-loop real-time interaction of command issuing from upper programs and status feedback from field equipment, eliminating data delay, stuttering and frame loss on the bus.
5. Electrical Isolation & Anti-Interference Protection Unit
Galvanic isolation is adopted between the system bus side and field DP bus side, completely isolating backplane system power from interference power on field bus and preventing ground loop potential difference and on-site equipment interference from intruding into the PLC main control system.The communication interface follows standard RS-485 differential transmission with strong common-mode interference resistance. Onboard EMI filter circuits effectively resist radiation from inverters and coupling interference from high-voltage equipment on industrial sites to guarantee long-term stable bus operation.
6. Industrial Wide-Temperature Passive Reinforced Operation Unit
Fanless fully passive hardware structure with no mechanical wearing parts and zero noise operation.Adopting industrial wide-temperature components, it adapts to harsh cabinet environments with high sealed temperature, dust accumulation and long-term low-frequency vibration, supporting 24/7 uninterrupted powered operation.Qualified hot-swap replacement is allowed so maintenance and part replacement can be carried out without unit shutdown, fitting the long-cycle continuous production and maintenance mode of industrial sites.
3. Technical Specifications
(1) Basic Hardware Specifications
| Item | Technical Parameter |
|---|---|
| Full Model | IC695PBM300-BC |
| Equipment Type | RX3i Series PROFIBUS DP Master Communication Module |
| Compatible System | Emerson PACSystems RX3i PLC Control System |
| Mounting Method | Embedded installation on standard RX3i rack backplane slot |
| Communication Interface | Standard 9-pin D-SUB connector, RS-485 electrical standard |
| Maximum Number of Slaves | 125 DP slave devices |
| Data Capacity per Slave | 244Byte Input / 244Byte Output |
| Maximum Overall Throughput | 3584Byte Input / 3584Byte Output |
| Power Supply | Powered by RX3i rack backplane bus |
| Ingress Protection | IP20 (for indoor cabinet installation only) |
(2) Core Electrical & Communication Parameters
- Bus Protocol: Standard PROFIBUS DP-V0 / DP-V1, compatible with all standard DP slave devices
- Baud Rate: Adaptive rates ranging from 9.6kBit/s to 12MBit/s, suitable for long and short-distance bus networking
- Networking Features: Large-scale single-bus networking, automatic slave identification, address verification and equipment configuration matching
- Diagnosis Functions: Slave offline detection, address conflict detection, bus frame error statistics, communication abnormality alarm and power-on full self-test
- Isolation Performance: Galvanic isolation between system bus and field DP bus to prevent cross-area signal crosstalk and power interference
- Configuration Mode: Supports configuration via GSD file import, compatible with mainstream industrial programming software for efficient networking setup
- Maintenance Feature: Qualified hot-swap without disrupting basic operation of the whole system
(3) Environmental Parameters
- Operating Temperature: -20℃ ~ +60℃, industrial standard wide-temperature range
- Storage & Transportation Temperature: -40℃ ~ +85℃
- Relative Humidity: 5% ~ 95% RH, no condensation or corrosive gas deposition
4. Product Advantages
High-Capacity High-Speed Bus NetworkingSupports up to 125 slave stations and massive data throughput, satisfying centralized networking demands of large automation systems. The high-speed polling mechanism ensures real-time bus data without communication lag or delay.
Comprehensive Intelligent Bus Diagnosis
Built-in complete DP bus fault monitoring system accurately identifies offline status, address conflict, frame error, bus interference and other abnormalities. Dual alarm via local indicators and upper system quickly pinpoints fault locations and reduces bus maintenance difficulty significantly.Seamless Native System Compatibility
Perfectly matched with RX3i PLC backplane bus with no extra adapter modules or circuit modification required. Fast configuration via GSD file import improves commissioning efficiency for new-built and retrofitted DP networking projects, with full compatibility to all standard DP slave devices.Stable Operation with Strong Isolation & Anti-Interference
Complete galvanic isolation between system side and field bus side, combined with RS-485 differential transmission and EMI filtering, effectively resists electromagnetic radiation from inverters and high-voltage equipment on industrial sites, eliminating common soft faults such as bus intermittent disconnection, data fluctuation and frequent slave drop-off.Long Service Life with Maintenance-Free Passive Design
Fanless passive architecture free of wearing mechanical parts. Industrial wide-temperature components withstand harsh cabinet conditions with high stability during 24/7 continuous operation, extremely low board-level failure rate and controllable long-term maintenance cost.Excellent Maintainability with Quick Plug-and-Play Replacement
Standard rack mounting allows qualified hot-swap replacement. On-site substitution requires no program revision or bus topology reconstruction, enabling spare part replacement without unit halt and minimizing production downtime.5. Application Scenarios
1. Thermal Power & Power Auxiliary Control System
Applied in flue gas desulfurization & denitrification, water-steam systems, coal conveying sequence control and boiler auxiliary equipment automatic control systems of power plants. As the core DP master for networking, it connects field variable-frequency drives, remote I/O modules, smart instruments and solenoid valve groups to realize centralized monitoring, interlock control and data acquisition of auxiliary equipment and guarantee stable operation of power systems.
2. Chemical & Metallurgical Process Industry DCS System
Suitable for continuous automatic control of chemical reaction sections and metallurgical production lines. It constructs large-scale PROFIBUS bus networks to access various on-site actuators, detection instruments and speed regulation equipment, completing closed-loop process control, equipment condition monitoring and production data uploading to meet the requirements of continuous and high-precision production control.
3. Water Treatment & Environmental Protection Automation System
Used in automatic control systems for sewage purification and dust removal for environmental protection. It networks water pumps, fans, electric valves and online monitoring instruments to realize process parameter collection, equipment start-stop control and environmental data uploading, adapting to the long-term continuous operation of environmental protection facilities.
4. Intelligent Manufacturing Control System for Large Production Lines
Deployed on automated assembly lines and intelligent manufacturing equipment to build high-speed DP bus networks, enabling coordinated communication among multiple stations and devices, synchronizing line actions and real-time data interaction, and improving the automation and operational stability of production lines.
