Field­bus­es in in­dus­tri­al En­vi­ron­ments

PROFIBUS, PROFINET, Mod­bus RTU and Mod­bus TCP

Thanks to their mod­­u­lar de­sign, IFTA mea­­sure­­ment sys­tems can be flex­i­bly in­­te­­grat­ed into ex­ist­ing pro­cess­es and net­­works. Data ex­change be­tween the IFTA mea­­sure­­ment sys­tem and the plant con­trol sys­tem is im­­por­­tant for the smooth op­er­a­­tion of the plant. If the com­­mu­ni­­ca­­tion stan­­dards PROFIBUS, PROFINET, Mod­bus RTU oder Mod­bus TCP are used here, the fol­low­ing mod­­ules are suit­­able for send­ing and re­­ceiv­ing data.

What is PROFIBUS, PROFINET, Mod­bus RTU und Mod­bus TCP and what is the dif­fer­­ence?

These are com­­mu­ni­­ca­­tion stan­­dards for the safe au­­to­­ma­­tion of plants. PROFIBUS is an es­­tab­lished com­­mu­ni­­ca­­tion stan­­dard and, like PROFINET, is de­vel­oped by the user or­­ga­ni­za­­­tion PI.
PROFINET is a fur­ther de­vel­op­­ment of PROFIBUS based on in­­­dus­tri­al Eth­er­net. PROFINET of­fers ad­­van­­tages such as more bus par­tic­i­­pants, high­­er tran­s­mis­­sion speed as well as larg­er data pack­­ages.
PROFIBUS and PROFINET are fre­quent­ly used in Siemens au­to­ma­tion sys­tems, as these pro­to­cols are na­tive­ly sup­port­ed there and are the most wide­ly used.

Mod­bus RTU is an RS-485-based pro­to­col.
Mod­bus TCP is a wide­ly used Eth­er­net-based pro­to­col, known for its ease of im­ple­men­ta­tion, high com­pat­i­bil­i­ty, and suit­abil­i­ty for ap­pli­ca­tions with mod­er­ate data rates.