USB C to Ethernet adapter for PLC work: link light on, software still can't find the PLC byEugene KuzmenkoOctober 23, 2026
Thermal overload relay: what to set the dial to, and why it trips at normal current byEugene KuzmenkoOctober 22, 2026
How to meg a motor: what to disconnect first, and when the reading actually fails it byEugene KuzmenkoOctober 21, 2026
5069-IB16 inputs not turning on: the SA return, the 1 ms filter, and what a green MOD light won't tell you byEugene KuzmenkoOctober 20, 2026
PROFINET cable: what Type A, B, C and R mean, and why the flexible Siemens one stops at 85 m byEugene KuzmenkoOctober 19, 2026
1783-NATR setup: default IPs, DIP switches, and why the PLC behind it won't answer byEugene KuzmenkoOctober 16, 2026
Dual element RTD wiring: six leads, two elements, and why one element can't feed two inputs byEugene KuzmenkoOctober 15, 2026
1734-IB8S: what the LEDs mean, the 2020-2021 batch, and how to swap one byEugene KuzmenkoOctober 13, 2026
Kepware: what it actually does, who owns it now, and when you can skip it byEugene KuzmenkoOctober 12, 2026
Keyspan USA-19HS driver: why Windows blocks it, and the old copy that keeps it blocked byEugene KuzmenkoOctober 09, 2026
RSLogix 5000 vs Studio 5000: which version works with your controller byEugene KuzmenkoOctober 09, 2026
5069-OB16 flashing red: what each light means and the four faults behind it byEugene KuzmenkoOctober 07, 2026
5069-FPD: when you need one, where it goes in the rack, and the OW16 series that needs DC byEugene KuzmenkoOctober 06, 2026
Class 1 Div 2 enclosures: what has to be rated, and when a plain 4X box is enough byEugene KuzmenkoOctober 05, 2026
Braking resistor on a PowerFlex 525: why the drive still trips F005, and why the resistor cooks at standstill byEugene KuzmenkoOctober 02, 2026
CODESYS PLC: which controllers run it, and what breaks when you change brands byEugene KuzmenkoOctober 01, 2026
Interposing relay or direct drive: will your PLC relay output survive the contactor coil? byEugene KuzmenkoSeptember 30, 2026
Siemens PLC software: which package your CPU needs, and why the project version decides what you can upload byEugene KuzmenkoSeptember 29, 2026
Variable frequency drive: what happens inside, and why your meter says 300 V on a 600 V motor byEugene KuzmenkoSeptember 28, 2026
1734-AENT setup without Studio 5000: IP address, chassis size, and why it rejects your changes byEugene KuzmenkoSeptember 25, 2026
PLC simulator software: which one runs your real project, and when the free clock stops byEugene KuzmenkoSeptember 24, 2026
Managed vs unmanaged switch: it's the traffic and the loops, not the device count byEugene KuzmenkoSeptember 22, 2026
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