widely Applications. I also mean freedom munication S7-300 type PLC' sa very unique feature, which allows S7-300-PLC can deal openly with any munications equipment, communications controller, or PLC S7-300 type can be defined by the user's munications protocol (of the agreement ASCII), the baud rate to1.5 M bit/s (adjustable). So that can greatly increase the scope munications so that the control system configuration more flexible and convenient. Of any kind with a serial interface peripherals, such as: printers or bar code readers, Drives, a modem (Modem), the top PC-connected, and so can be used. Users can program to munication protocols, the exchange of data (for example: ASCII character code), RS232 interfaces with the equipment can also be used PC / PPI cable linking the munications.
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