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【Case Download】How does Siemens PCS 7 tackle the challenges of DCS integrated control in lithium extraction from salt lakes?
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【Case Download】How does Siemens PCS 7 tackle the challenges of DCS integrated control in lithium extraction from salt lakes?

2025-07-09
Latest company news about 【Case Download】How does Siemens PCS 7 tackle the challenges of DCS integrated control in lithium extraction from salt lakes?

latest company news about 【Case Download】How does Siemens PCS 7 tackle the challenges of DCS integrated control in lithium extraction from salt lakes? 0

 

Lithium extraction from salt lakes, as an important part of the new energy industry, is experiencing rapid development. Faced with complex processes such as adsorption, nanofiltration, and reverse osmosis, how to simplify wiring, realize electrical drive communication control, and fully integrate the continuous ion exchange host control system into DCS has become the focus of customers in a certain lithium extraction project. The realization of integrated DCS control will greatly reduce the user's maintenance difficulty and cost. Relying on the advanced PCS 7 V10 process automation control system and flexible on-site solutions, Siemens has helped the salt lake basic lithium salt integration project to build an efficient, intelligent, and easy-to-maintain modern factory.

 

Project Scale and Architecture

 

  • CS architecture based on PCS 7 V10.0
  • 4 pairs of redundant OS servers, 33 OS clients, 13 pairs of AS410-5H, 15 units of AS-410S
  • Over 14,000 physical IOs
  • Over 1,000 SINAMICS/SIMCODE drives
  • Over 400 ModbusTCP/OPC communications, over 2,000 HART instruments
  • AMS asset management station, PH history server, AVR anti-virus server, OPC UA server

 

DCS Direct Control of Core Equipment—Continuous Ion Exchange Host

 

To meet process requirements, the Siemens control system precisely controls key equipment such as hydraulic pump stations, servo drives, and valve islands with an execution cycle of 50ms. It also implements the "rapid approximation + precise positioning" control strategy for the host servo motor, ensuring that the continuous ion exchange host turntable accurately docks at the specified valve position, achieving a system response time of no more than 100ms.

 

Through this technical solution, Siemens not only helped the customer achieve true integrated control of core equipment but also brought comprehensive optimization in system response speed, operational convenience, and post-operation and maintenance costs.
latest company news about 【Case Download】How does Siemens PCS 7 tackle the challenges of DCS integrated control in lithium extraction from salt lakes? 1
Quick configuration of device logic and screens based on CMT and Faceplate
To address the challenges of a large number of ion exchange hosts, wide distribution, and complex wiring in the salt lake lithium extraction plant, Siemens customized the SIMATIC CFU compact field unit solution for this project. It has been successfully applied to over 3,000 on-site signal points with more than 300 CFU units deployed. Compared with traditional centralized IO wiring, the number of on-site construction terminals has been reduced by nearly 70%, and wiring workload has decreased by over 30%, significantly saving construction time and costs.
 
Compared with traditional wiring, CFU features flexible layout, more economical wiring, and easier maintenance. The collection and configuration speed of on-site IO signals has been significantly improved, bringing customers a truly "fewer wires, faster debugging, and easier expansion" application experience. It is an important part of the intelligent upgrade of salt lake lithium extraction plants.
latest company news about 【Case Download】How does Siemens PCS 7 tackle the challenges of DCS integrated control in lithium extraction from salt lakes? 2
Simplifying the Communication System
 
For drive products, the project fully adopts Siemens SINAMICS and SIMOCODE series, which are deeply integrated into the PCS 7 control system through the PROFINET network, simplifying traditional control wiring. Combined with the Siemens PCS 7 APL standardized library, the access of drive equipment is faster, more flexible, and easier to maintain.
 
The project also adopts Siemens' integrated factory network solution, building a plant-wide industrial network from the field to the control layer, and fully applying SCALANCE industrial switches to ensure the real-time performance and high reliability of data transmission.
latest company news about 【Case Download】How does Siemens PCS 7 tackle the challenges of DCS integrated control in lithium extraction from salt lakes? 3
Siemens CN4100 Communication Solution
latest company news about 【Case Download】How does Siemens PCS 7 tackle the challenges of DCS integrated control in lithium extraction from salt lakes? 4
The use of CN4100 in the lithium extraction process of this project
The cost advantage of lithium extraction from salt lakes has become evident, and it has now become the mainstream technical route. In this integrated lithium extraction project, Siemens' products such as the PCS 7 process control system, SINAMICS drives, and SCALANCE network have provided customers with efficient and stable control systems and solutions, contributing to the development of the industry.

 

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【Case Download】How does Siemens PCS 7 tackle the challenges of DCS integrated control in lithium extraction from salt lakes?
2025-07-09
Latest company news about 【Case Download】How does Siemens PCS 7 tackle the challenges of DCS integrated control in lithium extraction from salt lakes?

latest company news about 【Case Download】How does Siemens PCS 7 tackle the challenges of DCS integrated control in lithium extraction from salt lakes? 0

 

Lithium extraction from salt lakes, as an important part of the new energy industry, is experiencing rapid development. Faced with complex processes such as adsorption, nanofiltration, and reverse osmosis, how to simplify wiring, realize electrical drive communication control, and fully integrate the continuous ion exchange host control system into DCS has become the focus of customers in a certain lithium extraction project. The realization of integrated DCS control will greatly reduce the user's maintenance difficulty and cost. Relying on the advanced PCS 7 V10 process automation control system and flexible on-site solutions, Siemens has helped the salt lake basic lithium salt integration project to build an efficient, intelligent, and easy-to-maintain modern factory.

 

Project Scale and Architecture

 

  • CS architecture based on PCS 7 V10.0
  • 4 pairs of redundant OS servers, 33 OS clients, 13 pairs of AS410-5H, 15 units of AS-410S
  • Over 14,000 physical IOs
  • Over 1,000 SINAMICS/SIMCODE drives
  • Over 400 ModbusTCP/OPC communications, over 2,000 HART instruments
  • AMS asset management station, PH history server, AVR anti-virus server, OPC UA server

 

DCS Direct Control of Core Equipment—Continuous Ion Exchange Host

 

To meet process requirements, the Siemens control system precisely controls key equipment such as hydraulic pump stations, servo drives, and valve islands with an execution cycle of 50ms. It also implements the "rapid approximation + precise positioning" control strategy for the host servo motor, ensuring that the continuous ion exchange host turntable accurately docks at the specified valve position, achieving a system response time of no more than 100ms.

 

Through this technical solution, Siemens not only helped the customer achieve true integrated control of core equipment but also brought comprehensive optimization in system response speed, operational convenience, and post-operation and maintenance costs.
latest company news about 【Case Download】How does Siemens PCS 7 tackle the challenges of DCS integrated control in lithium extraction from salt lakes? 1
Quick configuration of device logic and screens based on CMT and Faceplate
To address the challenges of a large number of ion exchange hosts, wide distribution, and complex wiring in the salt lake lithium extraction plant, Siemens customized the SIMATIC CFU compact field unit solution for this project. It has been successfully applied to over 3,000 on-site signal points with more than 300 CFU units deployed. Compared with traditional centralized IO wiring, the number of on-site construction terminals has been reduced by nearly 70%, and wiring workload has decreased by over 30%, significantly saving construction time and costs.
 
Compared with traditional wiring, CFU features flexible layout, more economical wiring, and easier maintenance. The collection and configuration speed of on-site IO signals has been significantly improved, bringing customers a truly "fewer wires, faster debugging, and easier expansion" application experience. It is an important part of the intelligent upgrade of salt lake lithium extraction plants.
latest company news about 【Case Download】How does Siemens PCS 7 tackle the challenges of DCS integrated control in lithium extraction from salt lakes? 2
Simplifying the Communication System
 
For drive products, the project fully adopts Siemens SINAMICS and SIMOCODE series, which are deeply integrated into the PCS 7 control system through the PROFINET network, simplifying traditional control wiring. Combined with the Siemens PCS 7 APL standardized library, the access of drive equipment is faster, more flexible, and easier to maintain.
 
The project also adopts Siemens' integrated factory network solution, building a plant-wide industrial network from the field to the control layer, and fully applying SCALANCE industrial switches to ensure the real-time performance and high reliability of data transmission.
latest company news about 【Case Download】How does Siemens PCS 7 tackle the challenges of DCS integrated control in lithium extraction from salt lakes? 3
Siemens CN4100 Communication Solution
latest company news about 【Case Download】How does Siemens PCS 7 tackle the challenges of DCS integrated control in lithium extraction from salt lakes? 4
The use of CN4100 in the lithium extraction process of this project
The cost advantage of lithium extraction from salt lakes has become evident, and it has now become the mainstream technical route. In this integrated lithium extraction project, Siemens' products such as the PCS 7 process control system, SINAMICS drives, and SCALANCE network have provided customers with efficient and stable control systems and solutions, contributing to the development of the industry.

 

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