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用于Profibus PA和Foundation Fieldbus的现场总线隔离栅Pepperl+Fuches公司最新开发的现场总线隔离栅,型号为F2D0-FB-EX4.IEC,可以在本质安全条件下,一个总线段连接最多为31个总线站。这个现场总线隔离栅一个总线段,为总线站提供本安型(EEx ia IIC)电源。它可用于符合现场总线标准IEC 61158-2;31.25kbit/s(Profibus-PA,Foundation Fieldbus)的H1现场总线段。其外壳保护等级为IP66,能安装在危险区域Zonel。供电电压来自安全区的电压源,但不需要Ex的认证。这就是说,电压源的高低可以按照用户的要求选择。例如,
Fieldbus barriers for Profibus PA and Foundation Fieldbus Pepperl + Fuches’ newly developed fieldbus barriers, model number F2D0-FB-EX4.IEC, can connect up to 31 buses in a bus segment under intrinsically safe conditions station. This fieldbus barrier is a bus segment that provides an intrinsically safe (EEx ia IIC) power supply to the bus station. It can be used for H1 fieldbus segments conforming to the fieldbus standard IEC 61158-2; 31.25 kbit / s (Profibus-PA, Foundation Fieldbus). The enclosure has a degree of protection IP66 and can be installed in hazardous areas Zonel. The supply voltage comes from the voltage source in the safe area but does not require Ex approval. This means that the voltage source can be selected according to the user’s requirements. E.g,