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Ducnht replied to the thread DEIF controllers test station setup.Before designing a generator from scratch, check what the controller actually measures: DEIF genset/sync controllers expect VT-level AC... -
Ducnht posted the thread How do you handle vendor remote access to PLCs and substation devices? in Cyber Security.Vendor and integrator remote access is one of the most common entry points into OT networks, and also one of the hardest to get right...
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Ducnht replied to the thread Replacing a defective Efacec UC 500E with a standard desktop PC – Any advice.That "invalid licence" after about a minute is typical of a licence bound to the original hardware (hardware ID, MAC address, disk...
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Ducnht replied to the thread Real-World Concern.Agree that legacy PLCs are a real concern. Most were designed for closed networks, with no authentication on programming or write...
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Ducnht replied to the thread Cyber resilience act implications for Modbus RTU.Good pointer, mercator. One CRA nuance worth adding for anyone landing on this thread: the obligations fall on the manufacturer of the...
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Ducnht replied to the thread Industrial networking-Design Review: VRRP + PRP Hybrid Architecture.A few points from the security / operations side: 1. Unpruned trunks: I would prune. With every VLAN on every trunk, a loop or...
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Ducnht replied to the thread Cyber resilience act implications for Modbus RTU.One practical point I’d add is that “moving to Ethernet” does not automatically make Modbus secure. For legacy OT environments, I...
