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Hardware / IoT
Stale Data from Another PLC Looks Real: A Link Checklist
Hardware

Stale Data from Another PLC Looks Real: A Link Checklist

When the sending PLC drops off the link, the receiver holds the last values, which look exactly like live data. This article compares 5 built-in features of packaged networks with a custom TSEND_C/TRCV_C link, with an 11-point checklist and a guide to reading STATUS and T_DIAG.

#plc#siemens#omron#industrial
12 min read·8 Nov