ET 200SP for SIMATIC PCS 7, design

Main components of the SIMATIC ET 200SP distributed I/O system

• Interface module IM 155-6PN High Feature
  with BusAdapter (separate component for establishing the connection system) for communication with the SIMATIC PCS 7 automation system (controller) via PROFINET IO
• I/O modules
  4, 8 or 16 digital channels (DI, DQ, RQ) and 2 or 4 analog channels (AI, AQ); up to 64 I/O modules can be plugged into passive BaseUnits in any combination
• BaseUnits
  Supports for the plug-in I/O modules and the terminal box; for construction of the backplane bus and for the mechanical/electrical connections
• Server module
  for connection of ET 200SP station
• Standard mounting rail
  for latching-in of interface module, BaseUnits and server module; for installation of ET 200SP station in control cabinet

The extremely compact design allows a high packing density. With a depth of approx. 75 mm, the overall height is e.g.:

• 117 mm with 16 channels and 1‑wire connection (without AUX terminals)
• 141 mm with 8 channels and 3‑wire connection and AUX terminals

Replaceable bus adapters enable free selection of the PROFINET connection system from the following versions:

• BA 2Г—RJ45: 2 electrical connections for bus cable with standard RJ45 connectors (Cu)
• BA 2Г—FC: 2 electrical connections for direct connection of FastConnect bus cable (Cu; full-surface shielded connection, increased mechanical strength)
• BA 2Г—SCRJ: 2 optical connections for fiber-optic cables with SC RJ connectors (POF, PCF, increased mechanical strength)
• BA SCRJ/RJ45: 1 optical connection (port 1) for fiber-optic cables with SC RJ connector (POF, PCF, increased mechanical strength) and 1 electrical connection (port 2) for bus cable with standard RJ45 connector (Cu)
• BA SCRJ/FC: 1 optical connection (port 1) for fiber-optic cables with SC RJ connector (POF, PCF, increased mechanical strength) and 1 electrical connection (port 2) for direct connection of FastConnect bus cable (Cu; full-surface shielded connection, increased mechanical strength)

The BaseUnits mounted on a standard rail can already be wired and tested prior to connection of the I/O modules (permanent wiring).

Hot swapping of the I/O modules and terminal boxes plugged onto the BaseUnits is possible. Mechanical coding prevents the use of an incorrect slot and the resulting destruction of the module electronics.

A BU cover is available for reserved, unequipped slots (BaseUnit without I/O module) as protection for the BaseUnit connectors. It can be provided with a reference ID label.

For the connection of cable shields that is both space-saving as well as optimized in terms of EMC, a shield connection is available that is quick and easy to mount. This consists of a shield connection element that can be plugged onto the BaseUnit and a shield terminal.

An inscription and color identification system with the following components facilitates orientation:

• Labeling strips for insertion in interface and I/O modules (foil on rolls for thermal transfer printers or pre-perforated A4 size paper for laser printers)
• Color-coded labels for cable assignment and identification of the potentials of an I/O module
• Reference identification labels for interface module, BusAdapter, BaseUnits and I/O modules for identifying system components

Installation

Installation of an ET 200SP station is quick and easy:

• Latching-in of interface module, BaseUnits and server module on a standard mounting rail (35 x 15 x 7.5 mm or 35 x 15 x 15 mm)
• Connection of the cables for the 24 V DC power supply on the interface module
• Plugging-on and screwing tight of the bus adapter
• Prewiring of the 24 V DC power supply and process signal cables on the BaseUnits
• Plugging-on of the I/O modules

The ET 200SP station can be installed in any orientation in an enclosure or control cabinet. The preferred position is horizontal.

Configuration limits and guidelines

• Up to 64 I/O modules (digital/analog); full data volume up to 1 440 bytes (with S2 system redundancy to 1 000 bytes)
• The thermal continuous current for the load or encoder supply can be a maximum of 10 A per potential group.