Yokogawa CP451-50 Processor Module

Easy to Use
Features a simple user interface and a programming language that is easy to learn, enabling quick implementation of control tasks.

Strong Expandability
Supports multiple expansion options, facilitating the expansion of input/output points and communication interfaces to meet different application requirements.

High Safety Performance
Equipped with multiple safety protection mechanisms, such as overcurrent protection for input/output points and overheat protection, to ensure the safety of equipment and personnel.

Fast Response
Capable of quickly processing various signals and data, timely receiving signals from detectors and other devices, and controlling corresponding output devices such as alarm bells and fire-extinguishing equipment.

Programmable Logic
Can implement different control logics according to user settings and programs to meet diversified control needs.

Rich Communication Interfaces
Supports multiple communication protocols such as Modbus and Ethernet, enabling communication and integration with devices of different types and brands.

Self-Diagnosis Protection
Able to detect potential faults and abnormal conditions, and take timely measures to protect the system and equipment from damage, ensuring the safe and stable operation of the system.

Input Signal Types
Supports analog signals, digital signals, and pulse signals.

Sampling Rate
Ranges from 1Hz to 100kHz.

Accuracy
±0.01%FS.

Reliability
Mean Time To Failure (MTTF) is greater than 100,000 hours.

Processor Speed
10MHz.

Memory Capacity
64KB RAM and 32KB EPROM.

Input/Output Points
Can be expanded to up to 256 input points and 256 output points at most.

Operating Voltage
Typically 24VDC.

Ambient Temperature
0°C to 60°C.

Ambient Humidity
5% to 95%, non-condensing.

Weight
Approximately 0.7 kg.

Dimensions
15.2 cm x 5.1 cm x 20.3 cm.

Communication Failures
If normal communication with other devices is impossible, it may be caused by incorrect communication protocol settings, faulty communication cables, or damaged interfaces. Check whether communication protocol parameters are correct, replace communication cables, use professional tools to detect interfaces, and replace them in time if damaged.

Input/Output Abnormalities
Manifested as incorrect collection of input signals or invalid output control. It may be caused by loose input/output wiring, module channel failures, etc. Check whether the wiring is firm. If a module channel failure is confirmed, try reconfiguring the channel or replacing the module.

Overheating Faults
Long-term operation of the module or poor heat dissipation may lead to overheating. Check whether the module installation meets the requirements, whether there is sufficient heat dissipation space around it, clean the dust on the module surface and its surroundings, and ensure good heat dissipation.

Abnormal Program Operation
Situations such as abnormal program execution or system crashes may occur, possibly due to insufficient memory, program errors, or external interference. Check whether there are logical errors in the program code, optimize the program to reduce memory occupation, and ensure good grounding of the module and implement anti-interference measures.