Open for interactions:
Communication capabilities

The SIMATIC S7-200 Micro PLC provides a full range of communication capabilities. The integrated RS485 interfaces can be operated at data transmission rates from 1.2 to 187.5 kbaud:

• As system bus with up to 126 participants: Programming devices, SIMATIC HMI products and CPUs can be networked without a hitch. In pure S7-200 networks this is accomplished with the integrated PPI protocol. In a network composed of Totally Integrated Automation components, such as SIMATIC S7-300/400 or SIMATIC HMI, the S7-200 CPUs are integrated as MPI slaves.

• In the freely programmable mode up to 115.2 kbaud, with user-specific protocols such as ASCII (this supports interconnections with a modem, printer, barcode reader, PC, third-party PLC and any other device). Up to 32 SIEMENS frequency converters can be controlled without additional hardware by using USS protocol instructions.

A connection to a Modbus RTU network can be established via the Modbus protocol instructions.