The tried and tested separation of module and bus/power connection technology, which has already been used for the ET 200eco, is now also used for the digital and analog expansion modules of the ET 200pro. For the interface module this allows use of the T-functionality for the bus and 24 V power supply, and for the expansion modules it permits pre-wiring of sensor/actuator connections. This permanent wiring allows exactly one electronics module to be hot-swapped in the event of a fault without having to switch off the whole station. It can continue to operate fault-free while the module is being replaced. This ensures very high plant availability. When an electronics component is replaced, the whole I/O wiring can remain on the connecting module and does not have to be marked or removed.

Modules

The modules of the ET 200pro usually have two or three components. Interface and power modules as well as digital and analog expansion modules comprise:

• One bus connector which constitutes the backplane bus of the system
• One electronics module or interface module
• One connecting module

A backplane bus module is required for operation of motor starters.

A station is constructed from:

• One rack
• One interface module for PROFIBUS DP
• One connecting module for the interface module for PROFIBUS DP
  • CM IM DP direct with up to 6 M20 screwed cable glands
  • CM IM DP ECOFAST Cu
  • CM IM DP M12 7/8“

Or optionally

• each with an interface module for PROFINET IO
• a terminal module for the PROFINET IO interface module:
  • CM IM PN M12 7/8“
  • CM IM PN 2 x RJ45
  • CM IM PN 2 x SCRJ FO

Or optionally

• one CPU or one F-CPU
• Max. 16 expansion modules that can be mounted in stations up to 1 m in width

Expansion modules

The following expansion modules are available:

• Digital I/Os
• Analog inputs
• Analog outputs
• Connecting modules IO
  • CM IO 8 x M8 for digital electronic modules
  • CM IO 4 x M12 inverse for digital electronic modules
  • CM IO 4x M12 for digital or analog electronic modules
  • CM IO 4 x M12 P for digital electronic modules
  • CM IO 8x M12 for digital electronic modules
  • CM IO 8x M12 P for digital electronic modules
  • CM IO 8 x M12 D for digital electronic modules
  • CM IO 2 x M12 for digital electronic modules
  • CM IO 1 x M23 for digital electronic modules
• Power module electronics
• Connecting modules for power modules
  • CM PM-E PP (Push Pull)
  • CM PM-E directly with up to 2 M20 screwed cable glands
  • CM PM-E ECOFAST Cu
  • CM PM-E 7/8”
• Fail-safe electronic modules
• Motor starters
• Fail-safe motor starters
• Frequency converters
• RFID communication modules
• Pneumatic interface modules

Racks

Two different racks are available for mounting the ET 200pro:

• Narrow rack
  The narrow rack supports complete pre-assembly on the workbench by means of two mounting flanges outside of the ET 200pro station.

• Compact rack
  When the compact rack is used, the small footprint of the ET 200pro system can be used to best advantage.