New products - July/August 2001

Power CPU for the Simatic S7-200 PLC

Siemens is expanding its range of Simatic S7-200 micro PLCs with the CPU 226XM - a device with an extra large memory. The CPU has a 16KB program memory and a 10KB data memory and is specially designed for complex applications and high data memory requirements.

The new micro PLC has 40 digital inputs and outputs which can be expanded by means of expansion modules to a maximum of 128 digital inputs and 120 outputs. Analogue peripheral devices and temperature measurement modules can also be connected by means of expansion modules. Two separate interfaces permit the simultaneous operation of the device in two different networks. Therefore, one interface can be used in a Simatic S7-200 network and the second interface in a Simatic S7300/400 network as a slave-MPI interface. Alternatively, each interface can also be parameterised as a freely programmable device interface and can control drives, modems or printers with ASCII protocol. Using communication expansion modules, the CPU 226XM can also be used as a slave in a Profibus DP network and as a master in an ASi network.

• Siemens
  Email c163@industrialnetworking.co.uk