FOXBORO RH100CP

Technical Performance Specifications

1. Core Processing Chip: Industrial-grade high-speed 32-bit real-time processing chip, main frequency 800MHz
2. Internal Memory Configuration

• Running Memory: 1GB industrial-grade anti-vibration DDR3 memory chip
• Local Storage Memory: 8GB high-temperature resistant industrial flash memory chip, used for local storage of short-term historical trend data and fault alarm records

3. Supported FBM Field Bus Node Quantity: Maximum 64 FBM input/output modules connected under a single RH100CP processor
4. FBM Bus Communication Speed: 2Mbps dedicated differential field bus transmission rate
5. Upper-Level Communication Interface: Dual-channel redundant industrial Ethernet RJ45 interface, supporting 10/100Mbps adaptive transmission rate, TCP/IP industrial communication protocol
6. Control Algorithm Execution Cycle: Minimum 50ms closed-loop PID control algorithm execution cycle
7. Redundant Backup Function: Supports dual RH100CP processors hot redundant master-standby switching, switching completion time less than 200ms without interrupting field control output
8. Power Supply Standard: Dual-channel redundant 24VDC industrial DC power input terminal, built-in multi-layer overvoltage, undervoltage, reverse polarity and lightning surge impact protection circuits
9. Environmental Operating Parameters

• Operating Temperature Range: 0°C ~ +75°C
• Storage Temperature Range: -45°C ~ +90°C
• Vibration Resistance: Comply with IEC60068-2-6 industrial heavy vibration standard
• Humidity Resistance: 5%–95% non-condensing relative humidity

10. Safety Certification Grade: Ex Zone2 explosion-proof certified, SIL2 functional safety integrity level compliant
11. Physical Dimensions & Weight

• Dimensions: 165mm (H) × 120mm (W) × 105mm (D)
• Net Weight: 0.78kg

12. Protection Rating: IP20, only applicable for installation inside sealed industrial control cabinets

Core Functional Features

1. Centralized FBM Field Bus All-Module Data Collection & Management Function

   As the core master control unit of the entire FBM field bus network, the RH100CP processor can simultaneously access up to 64 FBM analog input, discrete input, analog output and discrete output modules through the dedicated differential FBM field bus. The processor sends fixed-cycle data collection instruction frames to each FBM module in turn, uniformly receiving real-time analog sampling data, discrete switch state data and single-channel fault code information uploaded by all field FBM modules, and temporarily storing all collected field raw data in internal high-speed running memory for subsequent control algorithm calculation processing.

2. High-Speed Real-Time Industrial Closed-Loop Control & Logic Interlock Calculation Function

   The built-in high-speed 32-bit real-time processing chip supports rapid execution of multiple industrial control algorithms including PID proportional-integral-derivative closed-loop regulation, feedforward compensation control, cascade control and split-range control. The minimum control algorithm execution cycle reaches 50ms, which can meet the high-speed closed-loop control requirements of industrial reactors, boiler temperature and pressure adjustment loops, flow regulation loops and liquid level stabilization loops. The processor simultaneously executes industrial safety logic interlock judgment programs compiled by users, continuously comparing real-time field process parameter values with pre-set safety alarm threshold values and safety interlock trigger threshold values. Once process parameters exceed safety limit ranges or field safety interlock switch state changes are detected, the processor immediately executes pre-compiled interlock protection logic, sends control output instructions to corresponding FBM output modules to trigger emergency cut-off valves, safety baffles and emergency stop equipment actions, and uploads process over-limit alarm and safety interlock trigger alarm information to upper-level DCS operation monitoring stations in real time.

3. Dual-Channel Redundant Hot Standby Master-Standby Uninterrupted Switching Function

   The RH100CP processor supports dual-machine hot redundant backup operation mode. Two RH100CP processors are installed side by side on the cabinet DIN rail, one set as the master control processor to execute all field data collection and control algorithm calculation work, and the other set as the standby processor to synchronously copy all real-time field data, user control algorithm configuration parameters and logic interlock program data from the master processor through dedicated redundant data synchronization bus. When the master processor encounters hardware faults including power supply failure, internal memory damage, bus communication circuit burnout and processing chip failure, the standby processor automatically completes master-standby switching within 200ms. All field data collection and closed-loop control output functions are seamlessly taken over by the standby processor during the switching process, and field control output actions will not be interrupted or lost, completely eliminating production safety hazards caused by single core processor hardware faults.

4. Dual Redundant Industrial Ethernet Upper-Level Data Transmission Function

   The RH100CP processor is equipped with dual independent redundant industrial Ethernet RJ45 communication interfaces, which can simultaneously establish stable TCP/IP communication links with multiple upper-level DCS operation monitoring workstations, historical data storage servers and report printing terminals. The processor regularly packs processed real-time process engineering unit data, historical trend sampling data, equipment fault alarm records and safety interlock trigger records into standard industrial Ethernet data frames, and transmits them to all connected upper-level equipment through dual redundant Ethernet channels. The dual redundant Ethernet design realizes automatic switching of communication channels when a single Ethernet cable or Ethernet interface hardware fails, ensuring that upper-level operators can continuously view real-time field process operating data and historical trend curves without communication interruption.

5. Local Short-Term Historical Data & Fault Alarm Record Storage Function

   The built-in 8GB high-temperature resistant industrial flash memory storage chip inside the RH100CP processor can locally store short-term historical process trend data and all equipment fault alarm records uploaded by FBM field bus modules. The processor automatically sorts and archives all alarm records according to alarm occurrence time, alarm type and alarm equipment number, and supports querying historical alarm records within the last 30 days through upper-level DCS operation monitoring stations without relying on external historical data storage servers. The local historical trend storage function can continuously store process parameter sampling data of all control loops within the last 7 days, supporting operators to call short-term historical trend curve data for process operation abnormal fault analysis on site.

6. Complete Power-On Full BIST Hardware Self-Test & Real-Time Self-Diagnosis Function

   After the dual-channel redundant 24VDC power supply is connected to the RH100CP processor power terminals, the processor automatically executes a full-range BIST hardware self-test program before entering normal control operation mode. The self-test sequentially verifies the core processing chip, internal running memory and flash storage memory chip, FBM field bus communication drive circuit, dual-channel redundant industrial Ethernet communication circuit, redundant master-standby data synchronization bus circuit and dual-channel redundant power supply protection circuits. All hardware fault information detected during the power-on self-test is displayed through dedicated fault LED indicators on the front panel of the processor, and fault information is simultaneously uploaded to upper-level DCS operation monitoring stations through Ethernet communication interfaces. During normal continuous operation after power-on self-test completion, the processor runs a real-time hardware self-diagnosis program in the background at all times to continuously monitor the operating state of all internal hardware circuits and memory chips. Once real-time hardware operation abnormalities are detected during operation, the processor immediately generates hardware fault alarm information, lights up the corresponding fault LED indicator on the front panel, and uploads fault alarm data to upper-level monitoring workstations in real time. For redundant master processors with detected hardware faults, the processor automatically sends a master-standby switching trigger instruction to the standby processor to complete uninterrupted control function switching.

7. Remote Online Firmware Upgrade & Control Program Batch Configuration Download Support

   The RH100CP core control processor supports remote online underlying firmware program full upgrade and user control algorithm, logic interlock program batch configuration download operations initiated by upper-level DCS operation monitoring workstations through redundant industrial Ethernet communication channels. The firmware upgrade and control program download processes do not require processor power-off or DIN rail disassembly operations; all FBM field bus module signal acquisition and field control output functions can continue to run normally during remote configuration execution processes without interrupting industrial production process control. If firmware data packet transmission or control program configuration data transmission is abnormally interrupted during remote upgrade or download processes, the processor automatically rolls back to the original stable firmware program version and original user control algorithm and logic interlock program configuration set to avoid DCS system core control function failure faults caused by incomplete configuration update operations.

8. Multi-Group Independent LED Status Indication Design

   The front panel of the RH100CP core control processor is equipped with multiple groups of independent high-brightness LED indicator lights to visually display the real-time operating state of the processor for on-site maintenance personnel without logging into upper-level DCS operation monitoring stations:

• Dual-channel redundant power supply running LED indicators (two groups, corresponding to two independent 24VDC power input channels);
• Master/standby state identification LED indicator (steady light for master processor, flashing light for standby processor);
• FBM field bus communication running LED indicator (steady light for normal bus connection, flashing light for bus communication fault);
• Dual-channel industrial Ethernet communication running LED indicators (two groups, corresponding to two redundant Ethernet communication channels);
• General hardware fault alarm LED indicator (off for normal hardware state, steady light for detected internal hardware fault);
• Control program running status LED indicator (steady light for normal control algorithm execution, flashing light for control program operation abnormality).