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.
Modbus TCP S7-1500: MB_CLIENT and MB_SERVER Setup
Modbus TCP S7-1500 setup in TIA Portal: MB_CLIENT, MB_SERVER, and TCON_IP_v4 configured, MB_MODE mapped to function codes, and status codes 8200 and 809B fixed.
PROFINET vs EtherCAT: An Honest Comparison for Real Projects
PROFINET vs EtherCAT compared without the marketing: wire-level differences, cycle times, topology, real cost, ecosystem, and when each is the right call.
S7comm Protocol Explained: How Siemens S7 PLCs Communicate
S7comm protocol explained: how S7-300, S7-400, S7-1200, and S7-1500 talk over TCP port 102, the PDU header, ROSCTR message types, and S7comm vs S7CommPlus.
PROFINET TIA Portal Configuration: Step-by-Step Guide
PROFINET TIA Portal configuration step by step: GSD install, device naming, module setup, I/O address mapping, update time, download, and online diagnostics.
Modbus TCP S7-1200: TIA Portal Step-by-Step Guide
Modbus TCP S7-1200 configuration in TIA Portal: MB_SERVER and MB_CLIENT setup, holding register mapping, connection parameters, and reading multiple devices.