Knowledge Base
300+ SCADA Protocol Articles & Guides
Deep dives on Modbus, DNP3, IEC 60870-5-101/104, IEC 61850, OPC UA, Profinet, MQTT, IEC 62443, and substation automation — written for practicing engineers.
All (280)Blog (68)Cybersecurity (32)MQTT Protocol (23)CIP Protocol (20)Modbus Protocol (19)IEC 61850 (17)PLC Communication (14)Redundancy Protocols (13)DNP3 Protocol (12)OPC UA Protocol (12)Wireshark Tutorials (12)ICCP / TASE.2 (9)IEC 60870-5-104 Protocol (8)Protocol Decoders (7)Profibus Protocol (5)Profinet Protocol (5)IEC 60870-5-101 Protocol (4)
Tags:
All
#Modbus(35)
#MQTT(34)
#SCADA(32)
#Modbus TCP(28)
#CIP(26)
#IEC 61850(23)
#DNP3(22)
#OPC UA(20)
#IEC 62443(18)
#PLC(18)
#Protocol Comparison(18)
#Modbus RTU(16)
#Wireshark(16)
#IEC 104(14)
#MQTT 5(13)
#PROFINET(13)
#function codes(11)
#ICCP(11)
#TASE.2(11)
#HSR(10)
#OT security(10)
#RS-485(10)
#TCP/IP(10)
#Broker(9)
#ICS Security(9)
#IEC 62439-3(9)
#ISMS(9)
#MBAP(9)
#Serial Communication(9)
#Siemens(9)
#Allen-Bradley(8)
#config(8)
#EtherNet/IP(8)
#IEC 101(8)
#IoT(8)
#ISO 27001(8)
#MMS(8)
#QoS(8)
#ASDU(7)
#holding registers(7)
Showing 1–4 of 4 articles
IEC 60870-5-101 Protocol
IEC-101
Link Initialization in IEC 60870-5-101 | Master-Slave Communication Setup
Learn how link initialization works in IEC 60870-5-101. Understand master-slave setup, balanced links, and reliable SCADA startup procedures.
4
IEC 60870-5-101 Protocol
IEC-101
IEC 101 Frame Formats Explained | Fixed & Variable Frames
Learn IEC 101 frame formats. Understand fixed and variable-length frames, control fields, and ASDU structure with real IEC 101 examples.
10
IEC 60870-5-101 Protocol
IEC-101
Originator Address in IEC 60870-5-101 Explained
Learn how the originator address works in IEC 60870-5-101. Understand its role in multi-master SCADA networks, dual-mode stations, and message routing.
3
IEC 60870-5-101 Protocol
IEC-101
Balanced and Unbalanced Transmission in IEC 60870-5-101
Explore the differences between balanced and unbalanced transmission in IEC 60870-5, key features, advantages, and applications in SCADA communication systems.
4