Supervisory Control and Data Acquisition (SCADA) is a combination of software and hardware as a control system/automation system that enables remote control, and management, as well as monitoring and recording the interaction of sensor devices, or machines in industrial infrastructure/facilities by collecting data from sensors and device instrumentation is located at a remote location and displays this data at a central location.

Data acquisition is one of the main functions of SCADA systems ensuring error-free transfer of information between processes and supervisors to obtain all necessary information about process status, through transmission media and communication protocols, which can ensure correctness. data exchange between peripheral devices and supervisory computers, where the transmission process is carried out remotely.

In its development, the SCADA system was built to answer the needs of automation in the industrial sector which want centralized information related to processes in one control room, especially regarding infrastructure/facility operating systems.

The role of the communication transmission system is very important and critical because this communication transmission system interacts with most electronic/control devices such as sensors, PLCs, and metering, provides information/data with a large capacity, and is expected to be transmitted in real time, and has continuity and reliability. Therefore, the selection of communication media is very important to ensure the process of controlling, monitoring, recording, and gathering information aimed at controlling quality, increasing efficiency, and optimizing production.

There are several communication network options for transmitting information/data on SCADA systems such as Ethernet, telephone lines, and fiber-optic lines, as well as wireless options such as Wi-Fi, radio, microwave, and cellular. The determination of the information/data transmission method depends on factors related to the availability of existing communication infrastructure at the subscriber’s location, data rate and polling frequency, remote location, installation budget, and ability to accommodate future needs, which can be built, where all will affect the final decision.

Selection of communication systems for sending information/data can also be selected using a combination of communication systems that may be available at the customer’s location.

However, radio, cellular spectrum, and paid or unpaid are the most widely used options that have advantages and disadvantages.

Mechasolusindo International, PT., (MSI), with the capacity, capability, and experience, offers a complete solution for the use of information/data transmission facilities for the benefit of SCADA systems.