Browse by topic

analog input

2 articles tagged “analog input”.

Flat vector diagram of an S7-1200 PLC with SM 1231 analog input module wired to a 4-20 mA transmitter, showing raw count and scaled engineering unit values
siemens s7-1200analog inputtia portal

S7-1200 Analog Inputs: Wiring and TIA Portal Setup

Learn how to wire, configure and scale analog inputs on the Siemens S7-1200 in TIA Portal. Real gotchas, address mapping and working ST code included.

Jul 18, 2026 · 8 min read

PLC analog input wiring diagram showing 4-20 mA transmitter connected to Siemens S7 analog input module
analog input4-20mainstrumentation

PLC Analog Input Wiring: 4-20 mA Step by Step

Wire a 4-20 mA transmitter to a PLC analog input without ground loops or signal noise. Covers 2-wire, 3-wire, 4-wire devices, shielding and raw count scaling.

Jun 29, 2026 · 6 min read

← All articles