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Durable chassis design
Adopting an integrated metal frame, it is stable and durable, and equipped with efficient heat dissipation holes around it to ensure long-term stable operation.
SJ8000 metal reinforced PLC
SJ8000 Metal-Reinforced Programmable Controller is a domestically developed, secure, and highly adaptable PLC series by Keyuan Wisdom. It combines the strengths of PLCs (standardization, modularity, openness) and DCS (distributed control, complex process handling, networked communication). With robust compatibility and openness, it’s widely used in ship monitoring, power speed control, nuclear power, and other fields, making it an ideal choice for automation control.
Product Features
Strong processing performance
Equipped with an industrial grade processor with a main frequency of 1.4GHz, it has excellent signal processing capabilities.
Self-supporting
The components are 100% made in China and have passed Self-supporting Certification.
Redundancy guarantees
Power supply CPU、 Both the bus and network adopt redundant design, greatly improving system stability and reliability.
Large capacity event recording
Supports caching 20000 SOE events, accurately recording data for easy fault analysis and traceability.
Efficient programming
Compliant with SAMA graphic standards, supporting FBD, with intuitive and convenient operation, improving programming efficiency.
Electrical isolation
High reliability isolation is adopted between the system side and the field side, analog and digital signals, and strong and weak electricity to ensure safe operation.
Maintenance and upgrade
The module supports hot plugging without the need for power outage or restart, and the terminals can be flexibly plugged in and out, significantly reducing maintenance costs.
Environmental adaptation
Through EMC and environmental testing, surface coating technology effectively prevents moisture and corrosion, and adapts to harsh working conditions.
Durable chassis design
Adopting an integrated metal frame, it is stable and durable, and equipped with efficient heat dissipation holes around it to ensure long-term stable operation.
Strong processing performance
Equipped with an industrial grade processor with a main frequency of 1.4GHz, it has excellent signal processing capabilities.
Self-supporting
The components are 100% made in China and have passed Self-supporting Certification.
Redundancy guarantees
Power supply CPU、 Both the bus and network adopt redundant design, greatly improving system stability and reliability.
Large capacity event recording
Supports caching 20000 SOE events, accurately recording data for easy fault analysis and traceability.
Efficient programming
Compliant with SAMA graphic standards, supporting FBD, with intuitive and convenient operation, improving programming efficiency.
Electrical isolation
High reliability isolation is adopted between the system side and the field side, analog and digital signals, and strong and weak electricity to ensure safe operation.
Maintenance and upgrade
The module supports hot plugging without the need for power outage or restart, and the terminals can be flexibly plugged in and out, significantly reducing maintenance costs.
Environmental adaptation
Through EMC and environmental testing, surface coating technology effectively prevents moisture and corrosion, and adapts to harsh working conditions.
System Architecture Diagram
Authoritative Certification
CPU technical specifications
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Technical Parameters |
SJ950A-01 |
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Power supply |
24VDC -20～+25% |
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Hot swapping |
Support |
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Real time clock |
Support, Format: Year, Month: Day, Hour, Minute, Second |
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Programming software |
CCM Studio |
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Programming language |
FBD，C |
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Clock rate |
Dual core 1.4G |
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Redundancy feature |
Power supply |
Redundancy |
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CPU |
Support |
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Control network |
Support |
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I/O network |
Support |
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Switching time |
＜2 ms |
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Memory |
Used for programs |
20MB |
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Used for data |
4MB |
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Power off storage |
2MB |
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Expandable memory |
8GB, Pluggable SD card |
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Basic instruction operation speed |
3ns |
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Minimum task cycle |
5ms |
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Communication |
Modbus TCP |
Number of channels |
2 |
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Number of slave-statiom |
≤30 |
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Communication rate |
1000 Mbps |
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Transmission distance |
≤100m |
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Modbus RTU |
Number of channels |
2 |
|
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Number of slave-statiom |
≤30 |
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Communication rate |
1200～115200 bps |
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|
CAN |
Number of channels |
2 |
|
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Number of nodes |
≤30 |
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I/O |
Number of modules |
192 |
|
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Number of racks |
12 |
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Module monitoring |
Support |
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Network |
Network architecture |
Star, ring, or hybrid switched networks |
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Number of CPUs in a single domain |
≤ 64 pairs |
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MTBF |
≥200,000 hours |
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Physical properties |
Weight |
300g |
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Size |
128.3 × 50.3 × 140.0 mm |
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