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SC400 Intrinsically Safe PLC
The SC400 series products are divided into three parts: CPU unit, I0 unit, and slave adapter unit. They adopt a rail expansion structure and are designed with an external intrinsic safety power supply. The system is based on the "Coal Mine Safety Regulations" and strictly follows the GB3836.1-2021 and GB3836.4-2021 standards in circuit design principles. It complies with the provisions of "mining intrinsic safety equipment" and does not require any explosion-proof measures in hazardous environments such as coal dust and gas. It can be directly used in intrinsic safety chambers.
Product Features
CPU Unit
Main frequency: 600MHz
User program area: 256KB
User data area: 64KB
Power down storage area: 4KB
Supports multiple programming languages including LD, FBD, SFC, and ST
I/O expansion can reach a maximum of 128 points
I/O Unit
Design of intrinsic safety circuit for the whole machine 16 bit high-precision AD chip
Support signals such as AI, AO, DI, DO, RTD, etc
Power end, I/O end, and bus are fully isolated (AI type inter channel full isolation)
Supports Modbus RTU communication
Network coupler
intrinsic safety
Passed GB/T 17626 series electromagnetic compatibility certification
Built in dual network ports, supporting cascading between network devices
Supports Modbus TCP protocol
CPU Technical Parameters
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Technical specifications |
SC4-CPU01-EX1 |
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Supply voltage |
12～24VDC，±10% |
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Programming language |
ST，LD，FBD，SFC |
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Clock rate |
600MHz |
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Standard power consumption |
＜2W |
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Basic instruction operation speed |
35ns |
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Minimum task cycle |
1ms |
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Memory |
Used for programs |
256KB |
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Used for data |
64KB |
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Power off storage |
4 KB |
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Communication |
Modbus TCP |
Number of interfaces |
2 |
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Interface Type |
RJ45 |
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Communication rate |
10 Mbps / 100 Mbps |
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Modbus RTU |
Number of interfaces |
1 |
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Interface Type |
DB9 |
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Cable Type |
Unshielded twisted pair cable |
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I/O |
Number of single rack modules |
≤16 |
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Number of remote rack |
3 |
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Network |
Network architecture |
Star, ring, or hybrid switched networks |
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Physical layer |
IEEE 802.3u |
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