DS200SDCIG1ABA  bus is a communication protocol designed by MODICON for the PLC produced by the company. From its functionality, it can be considered as a fieldbus. It achieves information exchange between PLC and the outside world through 24 bus commands. PLCs with MODBUS interfaces can be easily configured. The rapid development of industrial automation has led to the widespread application of MODBUS bus.

The DS200SDCIG1ABA  bus protocol is a communication protocol proposed by American Modicon Inc. (which has been acquired by Schneider Electric) in the 1970s. It is a completely open protocol that is currently adopted by numerous automation and instrumentation manufacturers internationally. Modbus protocol is a universal language applied to electronic controllers. Through this protocol, controllers can communicate with each other, as well as with other devices through the network. It has become a universal industrial standard. With it, control equipment produced by different manufacturers can be connected to an industrial network for centralized monitoring.