Bộ điều khiển S7-200

The SIMATIC S7-200 is the micro PLC for open-loop control and closed-loop control tasks in machine and plant construction. It combines the greatest possible automation effect with the lowest costs.

SIMATIC S7-200 applications range from replacing relays and contactors to handling complex automation tasks in standalone mode, in networks and within distributed configurations.

To save costs, the S7-200 is increasingly being employed in areas that previously required special electronics.

Applications include:

• Baling presses
• Plaster and cement mixers
• Ventilation plants
• Centralized/flange lubricating systems
• Woodworking machinery
• Gate controls
• Hydraulic lifts
• Conveyor systems
• Food and beverage industry
• Laboratories
• Modem applications (remote monitoring and maintenance)
• Electrical installations

The SIMATIC S7-200 family consists of the following modules:

• 5 basic devices with graded performances in different versions.
• 15 different digital and analog expansion modules.
• 2 communications processors for connection to PROFIBUS and AS Interface.

Mechanical features

• Rugged, compact plastic housing.
• Easily accessible connection and control elements, protected by front flaps.
• CPU 224 and higher: Removable connection terminals, also for digital expansion modules.

Equipment features

• International standards:
  SIMATIC S7-200 complies with the standards according to VDE, UL, CSA and FM (Class I, Category 2; Danger zone groups A, B, C and D, T4A). The quality management system used during production is certified according to ISO 9001.

Communication

The SIMATIC S7-200 provides various possibilities for communication:

• Communication interface:
  Can be operated in PPI slave, MPI slave and in the freely-programmable interface mode.
• Connection to AS-Interface:
  As master via CP 242-2 communications processor.
• Connection to PROFIBUS DP as slave:
  Via PROFIBUS-EM 277.

PPI network

PPI is the communication system integrated in every S7-200 CPU. Connections for programming, operation or monitoring can be established over a common two-wire cable. The CPUs can communicate simultaneously with several CPUs, TDs or OPs. Data transmission rates 9.6, 19.2 and 187.5 Kbit/s.

The following can be connected:

• Programming devices: Field PG, Power PG.
• PCs (AT-compatible), via PC/PPI cable.
• TD 200 Text Display, TP070 Touch Panel; SIMATIC Operator Panels.
• SIMATIC S7-200:
  Max. 31 S7-200 PLCs on a common data line to a PG, PC, TD 200 or OP. Direct data exchange between S7-200 PLCs (in each case as master) and NETR and NETW