BASSO-1010DS_User Manual_Eng_DM v1.0.1

BASSO-1010DS User Manual
4
1. Serial Converter
Converter
Function of equipment doubles when connected to other equipment, devices, computers and so on. Therefore,
communication of equipment is an important factor of both users at industrial sites and end users. In order for the
incoming and outgoing data to be transmitted without any problems, each device participating in the communication
must be able to recognize the data sent by each other.
However, the communication is often impossible because different equipment uses different communication
specifications and protocols. This is similar to what happens when two people who use different words. An interpreter
that translates them between different words is required. Likewise, the communication of equipment requires
something that transforms between different communication specifications and protocols: converter.
The converter allows both sides to communicate without any variation in existing communication specifications and
protocols. Because there are so many different types of communication specifications and protocols, there are also
many different types of converters.
Serial
RS232 is the most simple and common equipment communication standard established by the EIA(Electronic
Industries Association). As it only supports 1:1 communication and is mainly used for communication within
100m(vary on the speed of communication), it has been used in many industrial sites up to now due to its simplicity
and affordability.
RS422 and RS485 are complementary standards to RS232 shortcomings. As compared to RS232 with only 1:1
communication and limited to short distance communication, RS422 and RS485 uses four or two signal lines,
supporting long distance communication up to 1.2km with a stronger response to noise. RS422/485 also supports
multi-drop mode, enabling communication in a more complex and wider environment.