Integrated CPU Interface Module

The integrated CPU interface module can be used as a standalone controller, and also applied in distributed automation systems with medium-scale programs at each substation. Its processing capability is equivalent to the CPU 314 of S7-300, allowing for on-site distributed preprocessing of production data. Communication can be via MPI/PROFIBUS or PROFINET, depending on the model. The interface module offers the following advantages:

• Relieve the controller's burden

Reduce response time to critical local data

• Increased transparency and streamlined procedures

• Easier debugging

• Smaller bus system load

Modular system structure, with pre-commissioning capabilities at various locations

Interface modules with integrated CPUs are available in the following types:

• The IM 151-7 CPU and IM 151-7 CPU FO communicate as PROFIBUS DP slave stations and upper-level controllers. By adding the DP master station module IM 151-7, a DP master station interface can be expanded, enabling the establishment of a lower-level PROFIBUS distributed system.

• The IM 151-8 PN/DP CPU offers both PROFINET and PROFIBUS interfaces. As a PROFINET IO controller, it can connect up to 128 IO devices. The PROFINET interface integrates three switch ports, enabling linear or ring topologies. Like the IM 151-7, it can connect an additional 32 PROFIBUS DP slave stations by adding a DP master station module.

In terms of faults, the SIMATIC ET 200S intelligent interface module IM 151-7 F-CPU and IM 151-8 PN F-CPU can be used to meet applications with moderate performance requirements. Fault-type CPUs can be expanded into centralized applications with ET 200S I/O modules or constructed into distributed systems via PROFIBUS or PROFINET. The intelligent ET 200S can also be used as a standalone controller without connecting to PROFIBUS or PROFINET cables. The IM 151-7 F-CPU and IM 151-8 PN F-CPU can also be equipped with a PROFIBUS DP master station module, functioning as a standard controller or an independent CPU (including type modules).

The IM 151-7 F-CPU incorporates DP/MPI interfaces. The IM 151-8 PN/DP CPU features a PROFINET interface with three switch ports, allowing for easy linear or ring topologies with two ports, and the third port for connecting programming devices. Additionally, with the built-in webserver functionality, module access and diagnostics are conveniently available. Both modules meet SIL 3 (IEC 61508, IEC 62061) and Cat. 4 (EN 954-1) requirements.

Interface Module without CPU

The interface module connects the ET 200S to the PROFIBUS DP (IM 151-1, available in 6 types) or PROFINET (IM 151-3, available in 4 types) bus and handles all data exchanges with the upper-level controller.

Models supporting PROFIBUS are as follows:

• IM151-1 Basic Model (RS485)

• IM151-1 Compact 32DI DC24V (RS485)

• IM151-1 Compact 16DI DC24V / 16DO DC24V/0, (RS485)

• IM151-1 Standard Model (RS485)

• IM151-1 Standard Type (FO)

• IM151-1 High-Performance Model (RS485)

Models supporting PROFINET are as follows:

• IM151-3 Standard Type (RJ45)

• IM151-3 High-Performance Type (RJ45)

• IM151-3 High-Speed Type (RJ45)

• IM151-3 PN (FO)

These interface modules can all be directly mounted on standard tracks.

ATIC ET 200S Compact