News result SCADA

Why a healthy OPC link still shows stale values, and the exact engineering checks to locate frozen tags across Honeywell Experion and Emerson Ovation architectures.

A practical troubleshooting playbook when your OPC DA/UA link stays green but SCADA tags freeze at stale values.

Eight root causes behind stale tags on a healthy OPC link, with Step-by-Step fixes for KEPServerEX and ControlLogix.

Map Modbus TCP data into 800xA correctly and diagnose the timeouts, offsets, and byte-order faults that break SCADA points. A practical guide to ABB System 800xA Modbus TCP integration including register mapping, unit IDs, byte order, and timeout diagnosis.

A practical step-by-step guide to configuring Modbus TCP communication on the Triconex Tricon SIL 3 safety controller. Covers TriStation 1131 setup, register mapping, DCS client configuration, communication testing, and troubleshooting common issues including address offset mismatches and port 502 firewall blocks.

Time synchronization errors between Triconex T3000 NTP clients and GE Mark VIe IEEE 1588v2 PTP controllers can corrupt Sequence of Events records and produce historian logging gaps. This guide covers NTP stratum configuration, PTP transparent clock requirements, a 5-step diagnostic procedure, and historian late data acceptance window settings.