Main components of the ET 200S distributed I/O system:

• Terminal modules enable the electrical and mechanical connection of the I/O modules and they house the terminals for the process wiring
  • TM-P terminal modules for power modules
  • TM-E terminal modules for electronics modules
  • TM-DS/TM-RS terminal modules for motor starters and TM-xB expansion modules
• IM 151 interface module for connecting the PROFIBUS DP to the ET 200S station. The terminal module is included in the scope of delivery.
• Power modules for PM-E electronics modules and PM-D motor starters
  • Individual grouping of load and sensor supply voltages and their monitoring, as well as for the safe shutting down of digital output modules
  • Supplying and monitoring the auxiliary voltages for motor starters, as well as for the shutting down of a complete group of motor starters
• Electronic modules for process data acquisition and output (I/O modules)
  • Digital electronics modules for connecting digital sensors and actuators
  • Analog electronics modules for connecting analog sensors and actuators
• Technology modules 
  • 1 COUNT 24 V/100 kHz counter module
• Motor starter modules for switching and protecting any three-phase loads
• Accessories 
  • Reserve module for reserving a slot for any electronics module
  • Labeling sheets for printing ID labels on a laser printer
  • Shield connection: shield connecting element, shield terminal, ground terminal, copper voltage bus 3 ? 10 mm;
    components for the low-impedance connection of cable shielding with low installation costs

Assembly

The terminal modules that can be mounted on a DIN rail (35 ? 15 ? 7.5 or 15 mm) form the carrier system for the I/O modules. They are used for the process wiring and enable the electrical and mechanical connection of the I/O modules. The terminal modules can be prewired and tested without the I/O modules. The I/O modules are simply plugged in place later. Terminal modules are available with screw connections, spring-loaded terminals or FastConnect design for fast mounting.

The automatic coding of the I/O modules reliably prevents the risk of injury to persons and/or destruction of modules through accidental mounting of the wrong module.

Expansion limits

Depending on the IM 151 interface module used, the expansion of an ET 200S station is subject to the following limits:

• A maximum total of 63 I/O modules per station can be inserted between interface module and terminating module
• The maximum permissible width of an ET 200S station is 2 m
• The maximum address volume of all the inserted I/O modules is 244 byte for input data and 244 byte for output data
• The maximum number of parameters is restricted to 244 byte per station

ET 200S configuration

The TIA Selection Tool can be used to assemble an ET 200S station quickly and easily. The tool is familiar with the configuration rules and supports users in the selection of all components and associated accessories in interactive mode.

http://www.siemens.com/tia-selection-tool

Note:

Please note when working with the TIA Selection Tool that the applications and product range of ET 200S are limited in the context of SIMATIC PCS 7!