Function

The faster SIMATIC S7-1500 controller provides higher functionality, with bit instruction processing times as low as 1ns and floating-point instruction processing times as low as 10ns (depending on the CPU type, this is not possible in the first release of products). The speed of the backplane bus is 40 times that of the S7-400PLC; Because code generation is optimized, the response speed of the CPU is compared to that of existing controllers.

Each CPU is equipped with a PROFINET IO (2-port switch) standard interface. CPU 1516-3PN/DP also has an integrated PROFINET basic interface, for example, it can be used for network blocking.

In addition to integrated interfaces, each SIMATIC S7-1500 controller can also be expanded through communication modules or communication processors. This provides many other connection methods, such as connecting through PROFIBUS, connecting through Ethernet, or connecting through serial interfaces using dedicated protocols such as USS or Modbus RTU.

Integration skills

The SIMATIC S7-1500 can integrate motion control functions into the PLC without the use of any additional modules. After PLCopen, this controller provides standardized blocks that can be used to connect analog drivers and PROFIdrive drivers. The motion control function supports the speed axis, positioning axis, and external encoder.

In order to effectively debug and quickly optimize the driver and closed-loop controller, SIMATIC S7-1500 also provides a wide range of tracking functions for all CPU variables, which can be used for real-time diagnosis and non punctual fault detection.

In addition to the driver function, the S7-1500 also provides rich closed-loop control functions, such as actively optimizing control parameters through easily configurable blocks to achieve good control quality.

In addition, technical modules can also be used to perform functions such as high-speed counting and azimuth capture, or to perform measurements on signals ranging from 24V to 200kHz.

Integrated security functions

When used in conjunction with STEP7, each CPU will provide common sense maintenance based on the code, which can avoid unauthorized reading and changing the content of the program block.

Copying maintenance enhances security protection and prevents unauthorized copying of program blocks. The detailed program block can be linked to the serial number of the storage card, so that the program block can only be executed after the configured storage card is inserted into the CPU.

Moreover, the controller has four different levels of security access to assign different access permissions to different user groups.

Due to improved operation and maintenance, the controller can detect data changes or unauthorized configuration data transmission.

The Ethernet communication processor (CP 1543-1) provides additional visit maintenance for users through a firewall and can establish a secure VPN connection (V12SP1 and higher versions).

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