Globally, many countries have been concerned about the safety of nuclear power stations and the air pollution coming along which caused by using coal as the power source. For the environmental and economic considerations, it provides the energy demands of households and business. The safety of natural gas transportation is industrial still a major concern, although it is transported via underground pipelines. As a result, to build a control system which is able to monitor the conditions of distributive supporting equipments and gas pipeline systems is a critical issue for companies that supply natural gas.

A gas distribution company which secures the transit transmission of natural gas across the territory of the CR and delivers it to regional gas distribution companies used JetNet 5010G in controlled gas delivery and regulation stations. Each station works automatically and it is on-line monitored from the central control room and several measured dates are stored in status professional server. Thus, the JetNet 5010G is used in each station and it connects PLC MANUFACTURERS, gas quality professional analyzer and several flow meters with Ethernet GPRS Professional router. The measurement units communicate via RS232 or RS422 so JetPort 5601 or JetPort 5604 is used.