The PSCCM22AAN 16418-5312 is a critical control module (CCM) of the Yokogawa ProSafe-RS Safety Control System, with the material code 16418-5312. Its core function is to provide key loop control capability that complies with the SIL 3 requirements of the IEC 61508 standard for Safety Instrumented Systems (SIS) in process industries such as petrochemicals, oil & gas, and electric power.
As the core control card of the ProSafe-RS system, this module integrates high-precision analog signal processing and multi-loop control functions. It seamlessly interfaces with Yokogawa ProSafe-RS racks and the CENTUM VP system, supports redundant configuration, and features real-time fault diagnosis and HART protocol compatibility. Capable of stable operation in harsh industrial environments, it ensures the safety and controllability of production processes, and is widely applied in safety-critical scenarios including emergency shutdown, fire and gas detection, and override control of key process parameters.
Core Functions
SIL 3 Safety ControlFrom hardware design to software algorithms, the module meets the Safety Integrity Level 3 (SIL 3) requirements of the IEC 61508 standard, and supports both single-module and dual-redundant configurations. A standalone module is capable of implementing a SIL 3 safety loop, while the redundant mode prevents safety function failure caused by single-side faults. It is suitable for safety-critical loop control applications such as Emergency Shutdown (ESD) and combustion management systems.
Multi-Loop High-Precision ControlThe module incorporates 8 independent PID control loops, supporting standard 4-20mA analog input/output. It is compatible with multiple signal types including thermocouples, RTDs, and differential voltages (±2.5V/±5V/±10V). It can accurately collect process parameters such as temperature, pressure, and flow rate, and rapidly output control commands via PID regulation algorithms to drive actuators like valves and pumps. This ensures that process parameters remain within the set range, enabling the module to respond to operating condition changes such as sudden load fluctuations.
Intelligent Diagnosis and Fault Early WarningHART protocol-compatible, the module can directly read status information and fault data from HART smart sensors—such as anomalies like sensor aging and loose wiring—and upload the data to the central control system in real time, allowing for fault point localization without on-site troubleshooting. Meanwhile, it features channel-level self-diagnosis and module status monitoring functions, triggering timely alarms in case of abnormalities to reduce maintenance costs and improve operation and maintenance efficiency.
Flexible Integration and ConfigurationThe module enables seamless integration into Yokogawa ProSafe-RS and CENTUM VP systems, and supports communication methods including Ethernet and RS-485, making it adaptable to a variety of industrial network architectures. Control strategies, loop parameters, and alarm thresholds can be quickly configured using Yokogawa’s dedicated configuration tool. It supports online modification and download, allowing configuration updates to be completed without system shutdown, which caters to the continuous production requirements of the process industry.
Highly Reliable Redundancy and Anti-InterferenceThe module supports redundant configurations for power supplies and communication links. Its hardware adopts an isolation design, with the input/output circuits electrically isolated from the internal module circuits to enhance the system’s electromagnetic interference resistance. It is also equipped with overcurrent, overvoltage, and undervoltage protection functions to prevent module damage caused by abnormal signals and ensure long-term stable operation.
pplication Scenarios & Advantages
Core Application FieldsIt is applicable to process industries including petrochemicals (ESD systems for catalytic cracking and hydrotreating units), oil & gas exploitation (wellhead safety control and natural gas processing plants), electric power (boiler combustion control and steam turbine protection in power plants), and metallurgy (safety monitoring of high-temperature furnaces and kilns). It is especially suited for critical process sections that require SIL 3 safety assurance.
Core AdvantagesIt combines safety compliance with control precision: a single module can meet SIL 3 requirements, reducing system configuration complexity. Its intelligent diagnosis function significantly cuts down operation and maintenance costs. It achieves seamless compatibility with Yokogawa’s mainstream DCS/safety systems, lowering integration difficulties. With a wide-temperature and anti-interference design, it is adapted to harsh industrial environments, ensuring long-term stable operation and minimizing unplanned downtime.
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