Modbus

Mod­bus Protocol What is Modbus? Modbus Mod­bus is a com­mu­ni­ca­tions pro­to­col based on master/slave (RTU) or client/server (TCP/IP) archi­tec­tures that can oper­ate on the 1st, 2nd, 7th lev­el of the OSI Model. Orig­i­nal­ly designed in 1979 by...

IED — Intelligent Electronic Device

IED — Intel­li­gent Elec­tron­ic Device What is IED? IED — Intelligent Electronic Device In the pow­er sec­tor, intel­li­gent elec­tron­ic devices (IED) are micro­proces­sor based pow­er sys­tem equip­ment, such as cir­cuit break­ers, trans­form­ers and...

IEC 104 — IEC 60870–5‑104

IEC 104 — IEC 60870–5‑104 What is IEC 104? IEC 104 — IEC 60870–5‑104 IEC 60870–5 is a pro­to­col stan­dard for tele­con­trol, telepro­tec­tion, and oth­er telecom­mu­ni­ca­tion func­tions for elec­tric pow­er systems. IEC 60870–5‑104 (short IEC-104) is a...

RTU — Remote Terminal Unit

RTU — Remote Ter­mi­nal Units What is RTU? RTU — Remote Terminal Unit RTU most com­mon­ly stands for Remote Ter­mi­nal Unit, but is some­times also used as an abbre­vi­a­tion for Remote Teleme­try Unit or Remote Tele­con­trol Unit. RTUs are devices...

SCADA

SCADA — Super­vi­so­ry Con­trol and Data Acquisition What is SCADA? SCADA — Supervisory Control and Data Acquisition Super­vi­so­ry con­trol and data acqui­si­tion (SCADA) sys­tems col­lect, mon­i­tor and process real-time data to: Auto­mate and...